You searched for subject:(Congestion).
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Università della Svizzera italiana
1.
Malekpour, Amirhossein.
A transport protocol for best-effort content-based
networks.
Degree: 2012, Università della Svizzera italiana
URL: http://doc.rero.ch/record/31686 
► Content-based publish/subscribe (or simply content-based) networking is a relatively new communication paradigm compared to IP networking, with a different approach to addressing network hosts. In…
(more)
▼ Content-based publish/subscribe (or simply
content-based) networking is a relatively new communication
paradigm compared to IP networking, with a different approach to
addressing network hosts. In content- based networking addressing
as well as information dissemination center around information and
interests. A host's address is represented by its interest and
information is routed by a network of brokers to hosts with
relevant interests. We advocate the idea that content-based
networking should be implemented and offered as a basic network
service and be accessible everywhere and to all applications.
Best-effort content-based systems which substantiate this idea are
high-throughput low-delay publish/subscribe systems in which
messages are treated as datagrams without end-to-end or in-network
acknowledgments and flow control. In such systems, publishers
(senders) do not avoid or even detect
congestion, and brokers
respond to
congestion by simply dropping overflowing messages.
These systems are therefore unable to provide reliable message
delivery and fair resource allocation and to properly handle
traffic anomalies, which may degrade the overall quality of
service. Furthermore, extensive usage of concurrent matching and
routing algorithms in broker software causes frequent message
reordering in the brokers and ultimately out- of-order delivery of
messages to clients. These shortcomings of best- effort
content-based systems impede their deployment for many applications
and environments. For instance, the lack of
congestion control
hinders the deployment of such systems in the open Internet, where
congestion-unaware flows are considered a major threat to the
stability of the network. With this motivation, we propose an
end-to-end ``transport protocol'' that improves three key
properties of best-effort content-based systems namely, message
ordering, reliability, and
congestion control. These essential
requirements have been previously addressed at the protocol and
broker-level, at the cost of much higher complexity and lower
messaging efficiency. On the contrary, our guiding principle in
designing this transport protocol is to view the underlying
best-effort publish/subscribe network as a black box and only
assume that it provides a general publish/subscribe API. This
design principle has multiple advantages. First, the transport
protocol works with virtually every best-effort content-based
system, for it makes no assumptions about the underlying network.
Second, individual clients can optionally take advantage of this
transport protocol for better quality of service while those with
relaxed requirements can opt out and avoid unnecessary overheads.
More importantly, the end-to-end protocol has a minimum impact on
the favorable performance and inherent simplicity of the
best-effort network since it does not require the involvement of
the broker network. Our methodology in developing this transport
protocol, on the one hand, is based on understanding the body of
related research on end-to-end solutions for FIFO…
Advisors/Committee Members: Antonio, Pedone, Fernando (Dir.).
Subjects/Keywords: Congestion control
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APA (6th Edition):
Malekpour, A. (2012). A transport protocol for best-effort content-based
networks. (Thesis). Università della Svizzera italiana. Retrieved from http://doc.rero.ch/record/31686
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Malekpour, Amirhossein. “A transport protocol for best-effort content-based
networks.” 2012. Thesis, Università della Svizzera italiana. Accessed March 04, 2021.
http://doc.rero.ch/record/31686.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Malekpour, Amirhossein. “A transport protocol for best-effort content-based
networks.” 2012. Web. 04 Mar 2021.
Vancouver:
Malekpour A. A transport protocol for best-effort content-based
networks. [Internet] [Thesis]. Università della Svizzera italiana; 2012. [cited 2021 Mar 04].
Available from: http://doc.rero.ch/record/31686.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Malekpour A. A transport protocol for best-effort content-based
networks. [Thesis]. Università della Svizzera italiana; 2012. Available from: http://doc.rero.ch/record/31686
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
California State Polytechnic University – Pomona
2.
Ho, Tiffany.
Dynamical Model and Numerical Simulation of Traffic Congestion.
Degree: MS, Mathematics, 2014, California State Polytechnic University – Pomona
URL: http://hdl.handle.net/10211.3/123901
► We will look at the dynamics of tra c congestion that is formed without any specifc origin. This type of event can be viewed in…
(more)
▼ We will look at the dynamics of tra c
congestion that is formed without any
specifc origin. This type of event can be viewed in metropolitan areas daily as
highway traffic jams. We assume that these tra c congestions are formed from small disturbances in the flow of traffic. This will be modelled using a dynamical system where each differential equation represents a vehicle's behaviour. We will utilize Matlab's built-in numerical integration function ode45 which uses Runge-Kutta integration methods. Through our simulations, we are able to determine that with the addition of small perturbations to an equation in the steady-state flow solution, we will induce traffic
congestion.
Advisors/Committee Members: Szypowski, Ryan (advisor).
Subjects/Keywords: traffic congestion
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APA (6th Edition):
Ho, T. (2014). Dynamical Model and Numerical Simulation of Traffic Congestion. (Masters Thesis). California State Polytechnic University – Pomona. Retrieved from http://hdl.handle.net/10211.3/123901
Chicago Manual of Style (16th Edition):
Ho, Tiffany. “Dynamical Model and Numerical Simulation of Traffic Congestion.” 2014. Masters Thesis, California State Polytechnic University – Pomona. Accessed March 04, 2021.
http://hdl.handle.net/10211.3/123901.
MLA Handbook (7th Edition):
Ho, Tiffany. “Dynamical Model and Numerical Simulation of Traffic Congestion.” 2014. Web. 04 Mar 2021.
Vancouver:
Ho T. Dynamical Model and Numerical Simulation of Traffic Congestion. [Internet] [Masters thesis]. California State Polytechnic University – Pomona; 2014. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10211.3/123901.
Council of Science Editors:
Ho T. Dynamical Model and Numerical Simulation of Traffic Congestion. [Masters Thesis]. California State Polytechnic University – Pomona; 2014. Available from: http://hdl.handle.net/10211.3/123901
3.
Ardian, Faddy.
Empirical analysis of Italian electricity market : L'analyse empirique du marché italien de l'électricité.
Degree: Docteur es, Sciences économiques, 2016, Université Paris-Saclay (ComUE)
URL: http://www.theses.fr/2016SACLX018
► Dérégulation du marché de l'électricité a affiché de nombreux changements dans l'économie et a influencé les chercheurs à initier des études dans ce domaine. Italie…
(more)
▼ Dérégulation du marché de l'électricité a affiché de nombreux changements dans l'économie et a influencé les chercheurs à initier des études dans ce domaine. Italie fournit une étude de cas intéressante pour explorer le marché de l'électricité en raison de ses spécifications. Notre projet se compose de trois études quantitatives indépendant pour voir le marché de l'électricité Italien en trois angles différents. La première étude permet de répondre la question de la prévision causée par la volatilité du marché de l'électricité. Le résultat suggère une méthode de prévision alternative pour la modélisation de prix de l'électricité sur l'Italie. La deuxième recherche examine l'impact des énergies renouvelables sur l'apparition de la congestion et ses coûts. Nous analysons les propriétés quantitatives de l'estimation économétrique afin de comprendre le mécanisme économique et d'en tirer la suggestion de la politique. Enfin, la recherche finale analyse l'interdépendance des prix dans six macro-zones du marché italien de l'électricité.
Deregulation of electricity market has displayed many changes in the economy and has influenced researchers to initiate studies in this field. The issue of the deregulated arises as the volatility of the wholesale price increases because of the new mechanism in price determination. Italy provides an interesting case study for exploring the electricity market because of its specifications. Our project consists of three independent quantitative research to view the Italian electricity market in three different angles. The first study is aimed to address the forecasting issue caused by the volatility of electricity market. The result suggests alternative forecasting method for modelling electricity price on Italy and comparisons between univariate and panel framework. The second research examines the impact of renewable energy on the congestion occurrence and cost. We analyse quantitative properties of the econometric estimation in order to gain insight into the economic mechanism and to draw policy suggestion. Finally, the final research attempts to address the interdependence of prices in six macro-zones of the Italian electricity market.
Advisors/Committee Members: Creti-Bettoni, Anna (thesis director).
Subjects/Keywords: Prediction; Congestion; Interdépendance; Forecast; Congestion; Interdependency
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Manager
APA (6th Edition):
Ardian, F. (2016). Empirical analysis of Italian electricity market : L'analyse empirique du marché italien de l'électricité. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2016SACLX018
Chicago Manual of Style (16th Edition):
Ardian, Faddy. “Empirical analysis of Italian electricity market : L'analyse empirique du marché italien de l'électricité.” 2016. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed March 04, 2021.
http://www.theses.fr/2016SACLX018.
MLA Handbook (7th Edition):
Ardian, Faddy. “Empirical analysis of Italian electricity market : L'analyse empirique du marché italien de l'électricité.” 2016. Web. 04 Mar 2021.
Vancouver:
Ardian F. Empirical analysis of Italian electricity market : L'analyse empirique du marché italien de l'électricité. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2016. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2016SACLX018.
Council of Science Editors:
Ardian F. Empirical analysis of Italian electricity market : L'analyse empirique du marché italien de l'électricité. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2016. Available from: http://www.theses.fr/2016SACLX018
University of California – Santa Cruz
4.
Albalawi, Abdulazaz.
Congestion Control Protocol for Named Data Networking.
Degree: Computer Engineering, 2016, University of California – Santa Cruz
URL: http://www.escholarship.org/uc/item/0vw6v41d
► The original use of the Internet was to share expensive resources by addressing endpoints using IP addresses. These days the Internet is mostly used to…
(more)
▼ The original use of the Internet was to share expensive resources by addressing endpoints using IP addresses. These days the Internet is mostly used to access distributed content rather than to share resources, but we still end up addressing endpoints in order to access distributed content. Named Data Networking (NDN) is an approach where content names are addressable, rather than endpoints. NDN's main approach is moving the internet towards a content distribution architecture and provides better support to mobile devices compared to TCP/IP. One of the design concerns of NDN is congestion control, which is the topic of this paper. Many recent studies on congestion control in NDN suggest either using an end-to-end approach or a hop-by-hop approach. Our NDN Congestion Control Protocol (CCP) is designed to detect and control congestion at the consumer end without the use of RTT measurements or congestion signaling. CCP is a receiver driven, window based protocol that can detect and control congestion by making use of measurements of delay along the forwarding path. We implement CCP using ndnSim simulator and compare it to an end-to-end AIMDD (additive increase/multiplicative decrease) scheme that behaves the same way as TCP.
Subjects/Keywords: Computer engineering; Congestion Control; NDN
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APA (6th Edition):
Albalawi, A. (2016). Congestion Control Protocol for Named Data Networking. (Thesis). University of California – Santa Cruz. Retrieved from http://www.escholarship.org/uc/item/0vw6v41d
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Albalawi, Abdulazaz. “Congestion Control Protocol for Named Data Networking.” 2016. Thesis, University of California – Santa Cruz. Accessed March 04, 2021.
http://www.escholarship.org/uc/item/0vw6v41d.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Albalawi, Abdulazaz. “Congestion Control Protocol for Named Data Networking.” 2016. Web. 04 Mar 2021.
Vancouver:
Albalawi A. Congestion Control Protocol for Named Data Networking. [Internet] [Thesis]. University of California – Santa Cruz; 2016. [cited 2021 Mar 04].
Available from: http://www.escholarship.org/uc/item/0vw6v41d.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Albalawi A. Congestion Control Protocol for Named Data Networking. [Thesis]. University of California – Santa Cruz; 2016. Available from: http://www.escholarship.org/uc/item/0vw6v41d
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Anna University
5.
Elango, K.
Congestion management in deregulated power systems using
soft computing techniques; -.
Degree: Electrical and Electronics Engineering, 2014, Anna University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/22837
► The restructuring of the Electric Power industry has resulted in newlineparadigm shifts for the real time control activities of the Power grids Power newlineDispatch is…
(more)
▼ The restructuring of the Electric Power industry
has resulted in newlineparadigm shifts for the real time control
activities of the Power grids Power newlineDispatch is one of the
important control activities and the Optimal Power newlineFlow OPF
is the most significant tool to obtain minimum cost generation
newlinepatterns with transmission and operational constraints The
role of an newlineIndependent System Operator ISO in a restructured
competitive market newlineenvironment would be to facilitate the
complete dispatch of the power that newlinegets contracted among
the market players With the trend of an increasing newlinenumber of
bilateral contracts being signed for electricity market trades the
newlinepossibility of insufficient resources leading to network
congestion may be newlineunavoidable In this scenario congestion
management with OPF framework newlinebecomes an important issue
Relieving congestion process may involve newlinerescheduling of
generations along with the employment of FACTS devices newlineand
load shedding newline newline
Reference p.135-151
Advisors/Committee Members: Paranjithi, R.
Subjects/Keywords: Congestion; deregulated; electrical engineering
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APA ·
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Manager
APA (6th Edition):
Elango, K. (2014). Congestion management in deregulated power systems using
soft computing techniques; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/22837
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Elango, K. “Congestion management in deregulated power systems using
soft computing techniques; -.” 2014. Thesis, Anna University. Accessed March 04, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/22837.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Elango, K. “Congestion management in deregulated power systems using
soft computing techniques; -.” 2014. Web. 04 Mar 2021.
Vancouver:
Elango K. Congestion management in deregulated power systems using
soft computing techniques; -. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Mar 04].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/22837.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Elango K. Congestion management in deregulated power systems using
soft computing techniques; -. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/22837
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Alberta
6.
Ye, Qinghua.
A Cluster-Based, Scalable and Efficient Router.
Degree: PhD, Department of Computing Science, 2010, University of Alberta
URL: https://era.library.ualberta.ca/files/d504rk980
► A cluster-based router is a new router architecture that is composed of a cluster of commodity processing nodes interconnected by a high-speed and low-latency network.…
(more)
▼ A cluster-based router is a new router architecture
that is composed of a cluster of commodity processing nodes
interconnected by a high-speed and low-latency network. It inherits
packet processing extensibility from the software router, and
forwarding performance scalability from clustering. In this thesis,
we describe a prototype cluster-based router, including the design
of the cluster-based router architecture and the addressing of
critical issues such as the design of a highly efficient
communication layer, reduction of operating system overheads,
buffer recycling and packet packing. By experimental evaluation, we
expose its forwarding capacity scalability and latency variance. We
also evaluate and analyze the potential hardware bottlenecks of its
commodity processing nodes, and present the correlation between the
reception and transmission capabilities of an individual port as
well as ports on the same bus. We propose an adaptive scheduling
mechanism based on system state information to manage the adverse
effect of this correlation on the router performance. We also
investigate internal congestion in the cluster-based router. To
manage the internal congestion, we propose two backward explicit
congestion notification schemes: a novel queue scheduling method
and an optimal utility-based scheme. We show the effectiveness of
these schemes either by ns-3 simulation, experimental evaluation,
or both. We also analyze the stability of the optimal utility-based
BECN internal congestion control scheme through theoretical proof,
simulation and experimental evaluation.
Subjects/Keywords: Cluster; Router; Congestion Control
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APA (6th Edition):
Ye, Q. (2010). A Cluster-Based, Scalable and Efficient Router. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/d504rk980
Chicago Manual of Style (16th Edition):
Ye, Qinghua. “A Cluster-Based, Scalable and Efficient Router.” 2010. Doctoral Dissertation, University of Alberta. Accessed March 04, 2021.
https://era.library.ualberta.ca/files/d504rk980.
MLA Handbook (7th Edition):
Ye, Qinghua. “A Cluster-Based, Scalable and Efficient Router.” 2010. Web. 04 Mar 2021.
Vancouver:
Ye Q. A Cluster-Based, Scalable and Efficient Router. [Internet] [Doctoral dissertation]. University of Alberta; 2010. [cited 2021 Mar 04].
Available from: https://era.library.ualberta.ca/files/d504rk980.
Council of Science Editors:
Ye Q. A Cluster-Based, Scalable and Efficient Router. [Doctoral Dissertation]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/d504rk980
University of Georgia
7.
Chapman, Stephanie.
Price discrimination with congestion effects.
Degree: 2014, University of Georgia
URL: http://hdl.handle.net/10724/27416
► I examine a model of price discrimination with congestion and find that when service providers are allowed to sell priority access to networks, consumers are…
(more)
▼ I examine a model of price discrimination with congestion and find that when service providers are allowed to sell priority access to networks, consumers are made better off in most cases. In particular, profit is greatest when priority
access is sold to a low value consumer, though high value consumers have a higher willingness to pay for priority when both consumers are served. Selling a priority right makes it profitable to serve all consumers in all sections of the parameter space.
This result is robust to both single price monopoly pricing and third degree price discrimination. When no priority is offered, greater flexibility in pricing leads to greater profit for the firm, with the highest profit being achieved under fully
nonlinear pricing. This analysis has implications for the net neutrality debate, particularly that consumer welfare may be made improved if net neutrality is relaxed.
Subjects/Keywords: price discrimination; net neutrality; congestion
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APA ·
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Manager
APA (6th Edition):
Chapman, S. (2014). Price discrimination with congestion effects. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/27416
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chapman, Stephanie. “Price discrimination with congestion effects.” 2014. Thesis, University of Georgia. Accessed March 04, 2021.
http://hdl.handle.net/10724/27416.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chapman, Stephanie. “Price discrimination with congestion effects.” 2014. Web. 04 Mar 2021.
Vancouver:
Chapman S. Price discrimination with congestion effects. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10724/27416.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chapman S. Price discrimination with congestion effects. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/27416
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Penn State University
8.
Gao, Mengyao.
Protecting Road Network Against Intentional Attacks By Near-optimal Interdiction Strategy.
Degree: 2014, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/22630
► In this study we investigate the vulnerability of road networks to interdictions. We consider that an intentional attacker wants to maximize the congestion level on…
(more)
▼ In this study we investigate the vulnerability of road networks to interdictions. We consider that an intentional attacker wants to maximize the
congestion level on the network by interdicting some links of the network. The behavior of the drivers traveling on the network is assumed to follow user equilibrium traffic assignment which is affected by the interdiction initiated by the attacker. In this problem, we propose a method, to reduce the damage to lowest level. An attack-to-protect (ATP for short) method is developed to solve for optimal interdiction strategies and to explore the effectiveness of protecting the identified vulnerable links of the network. Numerical experiments are conducted to examine factors that influence the effectiveness of this method. Specifically, we compare the efficiency of this method when applied on different Cartesian grids. Managerial insights into the vulnerability and protection of road networks are drawn from the analysis.
Advisors/Committee Members: Tao Yao, Thesis Advisor/Co-Advisor.
Subjects/Keywords: road network; congestion; interdiction
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Manager
APA (6th Edition):
Gao, M. (2014). Protecting Road Network Against Intentional Attacks By Near-optimal Interdiction Strategy. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/22630
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gao, Mengyao. “Protecting Road Network Against Intentional Attacks By Near-optimal Interdiction Strategy.” 2014. Thesis, Penn State University. Accessed March 04, 2021.
https://submit-etda.libraries.psu.edu/catalog/22630.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gao, Mengyao. “Protecting Road Network Against Intentional Attacks By Near-optimal Interdiction Strategy.” 2014. Web. 04 Mar 2021.
Vancouver:
Gao M. Protecting Road Network Against Intentional Attacks By Near-optimal Interdiction Strategy. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Mar 04].
Available from: https://submit-etda.libraries.psu.edu/catalog/22630.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gao M. Protecting Road Network Against Intentional Attacks By Near-optimal Interdiction Strategy. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/22630
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Waikato
9.
Eichler, Stephen John.
Measuring TCP Congestion Control Behaviour in the Internet
.
Degree: 2011, University of Waikato
URL: http://hdl.handle.net/10289/5536
► The Internet is constantly changing and evolving. In this thesis the behaviour of various aspects of the implementation of TCP underlying the Internet are measured.…
(more)
▼ The Internet is constantly changing and evolving. In this thesis the behaviour of various aspects of the implementation of TCP underlying the Internet are measured. These include measures of Initial
Congestion Window (ICW), type of reaction to loss, Selective Acknowledgment (SACK) support, Explicit
Congestion Notification (ECN) support. We develop a new method to measure
congestion window reduction due to three duplicate ACK inferred loss. In a previous study 94% of classified servers showed window halving, whereas we found that 50% of classified servers exhibited Binary Increase
Congestion control (BIC) or Cubic style behaviour, which is a departure from a Request For Comments (RFC) requirement to reduce the
congestion window by at least 50%. ECN is predicted to improve Internet performance, but previous studies have revealed a low support for it 0.5%, and ECN connections failed at a high rate due to middlebox interference 9%; in this thesis we show a steady increase over time of ECN being implemented and supported 7.2%-10.3%. ECN testing of webservers with globally routable IPv6 adderesses showed a higher success rate 21.9%. Analysis of
congestion control behaviour such as Tahoe, Reno and New Reno showed New Reno dominating more strongly than before, increasing from 35% to 70% of popular webservers. SACK sending analysis revealed that 45% of popular webservers implement it properly, as compared to 18% in earlier studies. SACK receiving analysis showed higher results to the earlier studies, with success increasing from 64.7% to 81.1%. For both of these SACK studies results for webservers with globally routable IPv6 addresses showed a higher success rate when errors remained low. Analysis of ICW indicates that 75% of popular webservers implement the older ICW regime of an initial
congestion window of two or less packets, as compared to 96% in previous studies. The new regime of an ICW of three or four packets depending on segment size was implemented at 20%. We see from these results that RFCs do affect TCP implementation, but change can be slow. However we see that implementation and support for modern TCP features is increasing.
Advisors/Committee Members: Luckie, Matthew John (advisor).
Subjects/Keywords: TCP;
Congestion control;
IPv6;
middleboxes
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Manager
APA (6th Edition):
Eichler, S. J. (2011). Measuring TCP Congestion Control Behaviour in the Internet
. (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/5536
Chicago Manual of Style (16th Edition):
Eichler, Stephen John. “Measuring TCP Congestion Control Behaviour in the Internet
.” 2011. Masters Thesis, University of Waikato. Accessed March 04, 2021.
http://hdl.handle.net/10289/5536.
MLA Handbook (7th Edition):
Eichler, Stephen John. “Measuring TCP Congestion Control Behaviour in the Internet
.” 2011. Web. 04 Mar 2021.
Vancouver:
Eichler SJ. Measuring TCP Congestion Control Behaviour in the Internet
. [Internet] [Masters thesis]. University of Waikato; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10289/5536.
Council of Science Editors:
Eichler SJ. Measuring TCP Congestion Control Behaviour in the Internet
. [Masters Thesis]. University of Waikato; 2011. Available from: http://hdl.handle.net/10289/5536
Kennesaw State University
10.
Zhan-Moodie, Melodi.
Spatio-Temporal Analysis of Highway Congestion and Accidents: A Case Study of Interstate 285 in Georgia.
Degree: MSin Construction Engineering, Construction Engineering, 2019, Kennesaw State University
URL: https://digitalcommons.kennesaw.edu/msce_etd/3
► Road traffic crashes threaten thousands of drivers every day and significant efforts have been put forth to reduce the number of traffic crashes and…
(more)
▼ Road traffic crashes threaten thousands of drivers every day and significant efforts have been put forth to reduce the number of traffic crashes and their impact. Traffic
congestion could be both a result of and a contributing factor to traffic crashes. The aim of this study is to investigate spatio-temporal traffic
congestion and crash patterns to gain a better understanding of the causation of
congestion and accidents, and their interaction. The Interstate 285 (I-285) in Georgia was used as a case study. With the aid of Geographic Information Systems (GIS), spatial clustering and densities of accidents were performed by following Anselin Local Moran’s I method of spatial auto correlation. The results indicated that the location of high-high accident clusters was in the northern half of the I-285 for all crash types. Additionally, geometric and traffic-related variables were correlated with accidents using logistic regression. The results showed that road segments involving merging, diverging, or weaving lanes had a positive correlation with the number of accidents. Specifically, the merging segments exhibited the highest crash frequency, followed by weaving and diverging segments. On the other hand, the road curvature did not play a significant role in crash occurrence, which is likely due to the gentleness of the road curvatures along the I-285 loop. However, the impact of acceleration on crash frequency remained inconclusive. It appeared that a lower average traffic speed correlated with a higher crash frequency, which may be due to a slow-down condition prior to crash occurrence.
Advisors/Committee Members: Jidong Yang.
Subjects/Keywords: congestion map; Transportation Engineering
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APA (6th Edition):
Zhan-Moodie, M. (2019). Spatio-Temporal Analysis of Highway Congestion and Accidents: A Case Study of Interstate 285 in Georgia. (Thesis). Kennesaw State University. Retrieved from https://digitalcommons.kennesaw.edu/msce_etd/3
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zhan-Moodie, Melodi. “Spatio-Temporal Analysis of Highway Congestion and Accidents: A Case Study of Interstate 285 in Georgia.” 2019. Thesis, Kennesaw State University. Accessed March 04, 2021.
https://digitalcommons.kennesaw.edu/msce_etd/3.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zhan-Moodie, Melodi. “Spatio-Temporal Analysis of Highway Congestion and Accidents: A Case Study of Interstate 285 in Georgia.” 2019. Web. 04 Mar 2021.
Vancouver:
Zhan-Moodie M. Spatio-Temporal Analysis of Highway Congestion and Accidents: A Case Study of Interstate 285 in Georgia. [Internet] [Thesis]. Kennesaw State University; 2019. [cited 2021 Mar 04].
Available from: https://digitalcommons.kennesaw.edu/msce_etd/3.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zhan-Moodie M. Spatio-Temporal Analysis of Highway Congestion and Accidents: A Case Study of Interstate 285 in Georgia. [Thesis]. Kennesaw State University; 2019. Available from: https://digitalcommons.kennesaw.edu/msce_etd/3
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Tampere University
11.
Peltola, Konsta.
Analysing the effects of weather to regional bus traffic in Tampere region
.
Degree: 2019, Tampere University
URL: https://trepo.tuni.fi/handle/10024/105713
► The topic of this thesis is to study how weather is affecting regional bus traffic in Tampere region. Study focuses on evaluating the direct effects…
(more)
▼ The topic of this thesis is to study how weather is affecting regional bus traffic in Tampere region. Study focuses on evaluating the direct effects of air temperature and snowfall. Delays of regional bus traffic were evaluated by using real time location data and timetable schedule data from regional buses in Tampere region. Based on this information, link travel times were counted for each stop-to-stop trip on the route of the bus. This approach also enabled the evaluation of between which stops the biggest delays occur and during which time of the day. The weather conditions were evaluated by using open weather observation data from Finnish Meteorological Institute and different ranges of air temperature and precipitation were categorized. Link travel times during good driving conditions were used as a baseline when compared to link travel times observed during more challenging conditions. Effect of weather was also evaluated during different times of the day and week.
It is expected that there is a correlation between adverse weather and longer link travel times in bus traffic.
• Hypothesis 1a: Adverse weather causes longer link travel times for the bus traffic
• Hypothesis 1b: Effects of adverse weather to link travel times are more severe in specific stop-to-stop links
First objective is to evaluate Hypothesis 1a and to find out how clear and big the correlation between severe weather and changes in bus link travel times are. Objective of the study is also to try to find out which components of the weather are affecting the link travel times more (air temperature or precipitation).
If hypothesis 1a is proven to be true, the next object will be to try to examine if delays are affected by weather more in some specific places or areas of the region.
Subjects/Keywords: weather;
congestion;
probe vehicle network
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Manager
APA (6th Edition):
Peltola, K. (2019). Analysing the effects of weather to regional bus traffic in Tampere region
. (Masters Thesis). Tampere University. Retrieved from https://trepo.tuni.fi/handle/10024/105713
Chicago Manual of Style (16th Edition):
Peltola, Konsta. “Analysing the effects of weather to regional bus traffic in Tampere region
.” 2019. Masters Thesis, Tampere University. Accessed March 04, 2021.
https://trepo.tuni.fi/handle/10024/105713.
MLA Handbook (7th Edition):
Peltola, Konsta. “Analysing the effects of weather to regional bus traffic in Tampere region
.” 2019. Web. 04 Mar 2021.
Vancouver:
Peltola K. Analysing the effects of weather to regional bus traffic in Tampere region
. [Internet] [Masters thesis]. Tampere University; 2019. [cited 2021 Mar 04].
Available from: https://trepo.tuni.fi/handle/10024/105713.
Council of Science Editors:
Peltola K. Analysing the effects of weather to regional bus traffic in Tampere region
. [Masters Thesis]. Tampere University; 2019. Available from: https://trepo.tuni.fi/handle/10024/105713
Royal Holloway, University of London
12.
Rooney, David John.
The traffic problem : geographies, politics and technologies of congestion in twentieth-century London.
Degree: PhD, 2016, Royal Holloway, University of London
URL: https://pure.royalholloway.ac.uk/portal/en/publications/the-traffic-problem-geographies-politics-and-technologies-of-congestion-in-twentiethcentury-london(e17e003b-3a26-4259-8a6f-8ebeb29531f1).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792486
► This thesis examines traffic congestion in twentieth-century London. Ideas about movement, mobility and circulation in the capital's streets intersect with a broad range of discourses…
(more)
▼ This thesis examines traffic congestion in twentieth-century London. Ideas about movement, mobility and circulation in the capital's streets intersect with a broad range of discourses and practices, from planning to policing, and from engineering to economics. Within these discourses, characterizations of congestion are political acts, and proposed solutions therefore represent political as well as geographical and technological world views. The thesis opens with an examination of the experience of congestion in twentieth-century London, setting up the 'traffic problem', before surveying the ways traffic congestion has been considered in the history of urban planning, the dominant discourse in which this topic is explored. Common themes have emerged from this close reading of the planning literature, including geographies of governance and the relationship between London-wide bodies and local authorities; technologies of congestion and notions of grids, surveillance, verticality and technological progress; segregation and control of different classes of people and vehicles; and the politics and financing of roads and mobility. The subsequent four chapters therefore examine 'solutions' of the traffic problem from a set of disciplinary points of view suggested by these themes, namely police officers, highway engineers, systems analysts, and political economists (although the boundaries between the groups are highly permeable). In each instance, detailed case studies of geographical places and technological structures are used to ground the discussions of disciplinary discourses and point to their limits. A fifth chapter then returns to the professional planning discourse and draws together these themes, examining how plans to reduce congestion in London have been negotiated into reality. The concluding chapter looks at the situation in London today and in the near future. It includes accounts from current practitioners in each of the disciplinary fields studied, and gives a sense of the long-term continuity of these wider concerns - the fact that characterizations of congestion are themselves historical artefacts which travel through time.
Subjects/Keywords: Traffic; Congestion; Planning; London; Infrastructure
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APA ·
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CSE |
Export
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Manager
APA (6th Edition):
Rooney, D. J. (2016). The traffic problem : geographies, politics and technologies of congestion in twentieth-century London. (Doctoral Dissertation). Royal Holloway, University of London. Retrieved from https://pure.royalholloway.ac.uk/portal/en/publications/the-traffic-problem-geographies-politics-and-technologies-of-congestion-in-twentiethcentury-london(e17e003b-3a26-4259-8a6f-8ebeb29531f1).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792486
Chicago Manual of Style (16th Edition):
Rooney, David John. “The traffic problem : geographies, politics and technologies of congestion in twentieth-century London.” 2016. Doctoral Dissertation, Royal Holloway, University of London. Accessed March 04, 2021.
https://pure.royalholloway.ac.uk/portal/en/publications/the-traffic-problem-geographies-politics-and-technologies-of-congestion-in-twentiethcentury-london(e17e003b-3a26-4259-8a6f-8ebeb29531f1).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792486.
MLA Handbook (7th Edition):
Rooney, David John. “The traffic problem : geographies, politics and technologies of congestion in twentieth-century London.” 2016. Web. 04 Mar 2021.
Vancouver:
Rooney DJ. The traffic problem : geographies, politics and technologies of congestion in twentieth-century London. [Internet] [Doctoral dissertation]. Royal Holloway, University of London; 2016. [cited 2021 Mar 04].
Available from: https://pure.royalholloway.ac.uk/portal/en/publications/the-traffic-problem-geographies-politics-and-technologies-of-congestion-in-twentiethcentury-london(e17e003b-3a26-4259-8a6f-8ebeb29531f1).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792486.
Council of Science Editors:
Rooney DJ. The traffic problem : geographies, politics and technologies of congestion in twentieth-century London. [Doctoral Dissertation]. Royal Holloway, University of London; 2016. Available from: https://pure.royalholloway.ac.uk/portal/en/publications/the-traffic-problem-geographies-politics-and-technologies-of-congestion-in-twentiethcentury-london(e17e003b-3a26-4259-8a6f-8ebeb29531f1).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792486
Hong Kong University of Science and Technology
13.
Liu, Yang.
Pareto-improving and revenue-neutral congestion pricing.
Degree: 2007, Hong Kong University of Science and Technology
URL: http://repository.ust.hk/ir/Record/1783.1-4218
;
https://doi.org/10.14711/thesis-b987447
;
http://repository.ust.hk/ir/bitstream/1783.1-4218/1/th_redirect.html
► In this thesis, the problems of pricing are investigated on networks with heterogeneous users. I seek the possibility and conditions through an anonymous toll scheme…
(more)
▼ In this thesis, the problems of pricing are investigated on networks with heterogeneous users. I seek the possibility and conditions through an anonymous toll scheme to achieve a simultaneously improvement of multi-criteria system performance. First, I look into the possibility and conditions of a Pareto-improving and Revenue-neutral congestion pricing scheme on a simple bi-mode network: this scheme aims at improving system performance, making every individual user better off (includes increasing social welfare) and having zero total revenue simultaneously. Second, comparing with the “do-nothing” case, I look into the possibility of Pareto-improving of system performances measured in both time and monetary units (the system time and the system cost) through a congestion pricing scheme in general networks. In the first part, since Pareto-improving and Revenue-neutral scheme suggested here charges transit users negative tolls and automobile users positive tolls, it can be a proper way to implement congestion pricing and transit subsidy in one step; also it will possibly improve system performance, increase social welfare and offset the inequity for the poor. I concern with two problems. First, whether or not Pareto-improving and Revenue-neutral pricing scheme exists for certain targeted modal split flow pattern? Second, what are the different Pareto-improving situations when a bi-mode transportation system serves for travel groups with different VOT distributions respectively? For a general VOT distribution, the condition that everyone will be better off is found. Furthermore, the impacts of details of different travel communities’ VOT distributions on the better off situations after Revenue-neutral toll are studied and the better off situations can be classified into three cases. Then I focused on travel groups with uniform VOT distributions. A continuous range in terms of the targeted highway flow always exists to realize everyone better off through Revenue-neutral pricing. The larger the VOT range is, the smaller the range is. A common range that the system time is decreased is exactly the range that Pareto-improving and Revenue-neutral pricing scheme exists, independent of VOT distribution. However, considering the increasing and decreasing property of the loss of the most adverse user among the community, a large VOT range does not always mean the adverse inequitable situation after Revenue-neutral pricing. When the reduction of travel time on highway through pricing is large enough, the large widening rich-poor gap will give more benefit to the most adverse user. In the second part, comparing with the untolled user equilibrium situation, the necessary condition of Pareto-improving of the total system travel cost and the total system travel time through a road pricing scheme in general networks is found. I give a classification of the untolled user equilibrium situations which are collectively exhaustive and mutually exclusive. Two among the classification are identified as extreme situations where the two…
Subjects/Keywords: Congestion pricing
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APA ·
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MLA ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Liu, Y. (2007). Pareto-improving and revenue-neutral congestion pricing. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-4218 ; https://doi.org/10.14711/thesis-b987447 ; http://repository.ust.hk/ir/bitstream/1783.1-4218/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Liu, Yang. “Pareto-improving and revenue-neutral congestion pricing.” 2007. Thesis, Hong Kong University of Science and Technology. Accessed March 04, 2021.
http://repository.ust.hk/ir/Record/1783.1-4218 ; https://doi.org/10.14711/thesis-b987447 ; http://repository.ust.hk/ir/bitstream/1783.1-4218/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, Yang. “Pareto-improving and revenue-neutral congestion pricing.” 2007. Web. 04 Mar 2021.
Vancouver:
Liu Y. Pareto-improving and revenue-neutral congestion pricing. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2007. [cited 2021 Mar 04].
Available from: http://repository.ust.hk/ir/Record/1783.1-4218 ; https://doi.org/10.14711/thesis-b987447 ; http://repository.ust.hk/ir/bitstream/1783.1-4218/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu Y. Pareto-improving and revenue-neutral congestion pricing. [Thesis]. Hong Kong University of Science and Technology; 2007. Available from: http://repository.ust.hk/ir/Record/1783.1-4218 ; https://doi.org/10.14711/thesis-b987447 ; http://repository.ust.hk/ir/bitstream/1783.1-4218/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Clemson University
14.
Kolodzey, William.
Flexible Congestion Management for Error Reduction in Wireless Sensor Networks.
Degree: PhD, Computer Engineering, 2020, Clemson University
URL: https://tigerprints.clemson.edu/all_dissertations/2594
► The dissertation is concerned with the efficient resolution of data congestion on wireless sensor networks (WSNs). WSNs are of increasing relevance due to their…
(more)
▼ The dissertation is concerned with the efficient resolution of data
congestion on wireless sensor networks (WSNs). WSNs are of increasing relevance due to their applications in automation, industrial processes, natural-disaster detection, weather prediction, and climate monitoring. In large WSNs where measurements are periodically made at each node in the network and sent in a multi-hop fashion via the network tree to a single base-station node, the volume of data at a node may exceed the transmission capabilities of the node. This type of
congestion can negatively impact data accuracy when packets are lost in transmission. We propose flexible
congestion management for sensor networks (FCM) as a data-collection scheme to reduce network traffic and minimize the error resulting from data-volume reduction. FCM alleviates all
congestion by lossy data fusion, encourages opportunistic fusion with an application-specific distortion tolerance, and balances network traffic. We consider several data-fusion methods including the k-means algorithm and two forms of adaptive summarization. Additional fusion is allowed when like data may be fused with low error up to some limit set by the user of the data-collection application on the network. Increasing the error limit tends to reduce the overall traffic on the network at the cost of data accuracy. When a node fuses more data than is required to alleviate
congestion, its siblings are notified that they may increase the sizes of their transmissions accordingly. FCM is further improved to re-balance the network traffic of subtrees such that subtrees whose measurements have lower variance may decrease their output rates while subtrees whose measurements have higher variance may increase their output rates, while still addressing all
congestion in the network. We verify the effectiveness of FCM with extensive simulations.
Advisors/Committee Members: Daniel Noneaker, Brian C Dean, Yongqiang Wang, William Harrell.
Subjects/Keywords: congestion; wireless sensor network
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APA ·
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Export
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Manager
APA (6th Edition):
Kolodzey, W. (2020). Flexible Congestion Management for Error Reduction in Wireless Sensor Networks. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2594
Chicago Manual of Style (16th Edition):
Kolodzey, William. “Flexible Congestion Management for Error Reduction in Wireless Sensor Networks.” 2020. Doctoral Dissertation, Clemson University. Accessed March 04, 2021.
https://tigerprints.clemson.edu/all_dissertations/2594.
MLA Handbook (7th Edition):
Kolodzey, William. “Flexible Congestion Management for Error Reduction in Wireless Sensor Networks.” 2020. Web. 04 Mar 2021.
Vancouver:
Kolodzey W. Flexible Congestion Management for Error Reduction in Wireless Sensor Networks. [Internet] [Doctoral dissertation]. Clemson University; 2020. [cited 2021 Mar 04].
Available from: https://tigerprints.clemson.edu/all_dissertations/2594.
Council of Science Editors:
Kolodzey W. Flexible Congestion Management for Error Reduction in Wireless Sensor Networks. [Doctoral Dissertation]. Clemson University; 2020. Available from: https://tigerprints.clemson.edu/all_dissertations/2594
Delft University of Technology
15.
Heemskerk, P.W.M. (author); Horsten, B.P.M. (author); Kramer, R. (author); Korevaar, T.J.A. (author).
Project Cartagena: Tunneling the bay.
Degree: Department Hydraulic Engineering, 2014, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:e2e3453f-a08a-498a-b9c7-2254d0c47ae9
► Cartagena is one of the main touristic attractions of Colombia with its good conserved colonial city centre. The city also has an important contribution to…
(more)
▼ Cartagena is one of the main touristic attractions of Colombia with its good conserved colonial city centre. The city also has an important contribution to the economic growth of Colombia, because of its big port and its beneficial location towards the Panama Channel. However, Cartagena is suffering from problems with the accessibility of different parts of the city, due to factors as flooding and overtopping waves. A previous group of students from the university in Delft, The Netherlands, did a study on those problems in Cartagena in 2013 and came up with a solution, a tunnel to diminish the traffic congestion problems. This result is the start of this project. The main traffic problems are around the old city centre. Between the airport and the old city a new cut and cover tunnel is being constructed at this moment, but the traffic problems between the centre, Bocagrande and Manga will not benefit from this solution. To improve the traffic between those parts, a track has been designed from the city centre to Bocagrande and further on towards the island of Manga. In the design the new road will be constructed on a land elevation in the Caribbean Sea in front of the city. The internal bay of Cartagena will be crossed by an immersed tunnel. The connections between the new road and the existing traffic system are all designed with roundabouts. The dyke section of the new connection could have a great addition to the project, as it would be the main generator of money. The option to create new land behind the levee could attract a lot of investors who are willing to pay for the valuable surface near to the city centre and Bocagrande. With this dyke the coastal face will change a lot, including the changes of the Colombian coast in general. Those effects are left out of consideration, because of the scope and the focus of the project on the part of the tunnel. The design of the tunnel is built of three main parts, the abutment, the tunnel elements and the groundwork. The abutments on both sides of the tunnel are the transition between the current road system and the immersed tunnel. The abutment roughly contains three parts, at first an open part, which will be a tunnel without roof which is guiding the traffic into the ground. The second is a service building, which connects the open and closed tunnel. In the service building the main control room is situated, just as the flooding prevention. The joint with the immersed tunnel is made by a closed tunnel. The abutment will be built in the dry, the construction site is provided by a building pit made of sheet piles.
Hydraulic Engineering
Civil Engineering and Geosciences
Subjects/Keywords: cartagena; tunnel; traffic congestion
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APA (6th Edition):
Heemskerk, P.W.M. (author); Horsten, B.P.M. (author); Kramer, R. (author); Korevaar, T. J. A. (. (2014). Project Cartagena: Tunneling the bay. (Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e2e3453f-a08a-498a-b9c7-2254d0c47ae9
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Heemskerk, P.W.M. (author); Horsten, B.P.M. (author); Kramer, R. (author); Korevaar, T J A (author). “Project Cartagena: Tunneling the bay.” 2014. Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:e2e3453f-a08a-498a-b9c7-2254d0c47ae9.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Heemskerk, P.W.M. (author); Horsten, B.P.M. (author); Kramer, R. (author); Korevaar, T J A (author). “Project Cartagena: Tunneling the bay.” 2014. Web. 04 Mar 2021.
Vancouver:
Heemskerk, P.W.M. (author); Horsten, B.P.M. (author); Kramer, R. (author); Korevaar TJA(. Project Cartagena: Tunneling the bay. [Internet] [Thesis]. Delft University of Technology; 2014. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:e2e3453f-a08a-498a-b9c7-2254d0c47ae9.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Heemskerk, P.W.M. (author); Horsten, B.P.M. (author); Kramer, R. (author); Korevaar TJA(. Project Cartagena: Tunneling the bay. [Thesis]. Delft University of Technology; 2014. Available from: http://resolver.tudelft.nl/uuid:e2e3453f-a08a-498a-b9c7-2254d0c47ae9
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Georgia Tech
16.
Zhao, Yimeng.
Mitigating interconnect and end host congestion in modern networks.
Degree: PhD, Computer Science, 2020, Georgia Tech
URL: http://hdl.handle.net/1853/63623
► One of the most critical building blocks of the Internet is the mechanism to mitigate network congestion. While existing congestion control approaches have served their…
(more)
▼ One of the most critical building blocks of the Internet is the mechanism to mitigate network
congestion. While existing
congestion control approaches have served their purpose well in the last decades, the last few years saw a significant increase in new applications and user demand, stressing the network infrastructure to the extent that new ways of handling
congestion are required. This dissertation identifies the
congestion problems caused by the increased scale of the network usage, both in inter-AS connects and on end hosts in data centers, and presents abstractions and frameworks that allow for improved solutions to mitigate
congestion. To mitigate inter-AS
congestion, we develop Unison, a framework that allows an ISP to jointly optimize its intra-domain routes and inter-domain routes, in collaboration with content providers. The basic idea is to provide the ISP operator and the neighbors of the ISP with an abstraction of the ISP network in the form of a virtual switch (vSwitch). Unison allows the ISP to provide hints to its neighbors, suggesting alternative routes that can improve their performance. We investigate how the vSwitch abstraction can be used to maximize the throughput of the ISP. To mitigate end-host
congestion in data center networks, we develop a backpressure mechanism for queuing architecture in congested end hosts to cope with tens of thousands of flows. We show that current end-host mechanisms can lead to high CPU utilization, high tail latency, and low throughput in cases of
congestion of egress traffic. We introduce the design, implementation, and evaluation of zero-drop networking (zD) stack, a new architecture for handling
congestion of scheduled buffers. Besides queue overflow, another cause of
congestion is CPU resource exhaustion. The CPU cost of processing packets in networking stacks, however, has not been fully investigated in the literature. Much of the focus of the community has been on scaling servers in terms of aggregate traffic intensity, but bottlenecks caused by the increasing number of concurrent flows have received little attention. We conduct a comprehensive analysis on the CPU cost of processing packets and identify the root cause that leads to high CPU overhead and degraded performance in terms of throughput and RTT. Our work highlights considerations beyond packets per second for the design of future stacks that scale to millions of flows.
Advisors/Committee Members: Ammar, Mostafa (advisor), Zegura, Ellen (advisor), Xu, Jim (committee member), Dhekne, Ashutosh (committee member), Blough, Douglas (committee member).
Subjects/Keywords: Network congestion; Data center network
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APA (6th Edition):
Zhao, Y. (2020). Mitigating interconnect and end host congestion in modern networks. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/63623
Chicago Manual of Style (16th Edition):
Zhao, Yimeng. “Mitigating interconnect and end host congestion in modern networks.” 2020. Doctoral Dissertation, Georgia Tech. Accessed March 04, 2021.
http://hdl.handle.net/1853/63623.
MLA Handbook (7th Edition):
Zhao, Yimeng. “Mitigating interconnect and end host congestion in modern networks.” 2020. Web. 04 Mar 2021.
Vancouver:
Zhao Y. Mitigating interconnect and end host congestion in modern networks. [Internet] [Doctoral dissertation]. Georgia Tech; 2020. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1853/63623.
Council of Science Editors:
Zhao Y. Mitigating interconnect and end host congestion in modern networks. [Doctoral Dissertation]. Georgia Tech; 2020. Available from: http://hdl.handle.net/1853/63623
Universidad de Extremadura
17.
Herrera Herrera, Nelson Iván.
Sistema para la toma de decisiones en la congestión vehicular de Quito (Ecuador), mediante análisis de datos sensoriales y sociales
.
Degree: 2020, Universidad de Extremadura
URL: http://hdl.handle.net/10662/10160
► El presente trabajo de tesis tiene como finalidad implementar un sistema que sirva de apoyo a la toma de decisiones de la congestión vehicular. La…
(more)
▼ El presente trabajo de tesis tiene como finalidad implementar un sistema que sirva de apoyo a la toma de decisiones de la congestión vehicular. La ciudad de Quito-Ecuador es considerada como un caso de estudio para el trabajo realizado. La investigación se presenta en función del desarrollo de una aplicación, haciendo uso de herramientas Big Data (Apache Flume, Apache Hadoop, Apache Pig), que permiten el procesamiento de gran cantidad de información que se requiere recolectar, almacenar y procesar. Uno de los aspectos innovadores de la aplicación es el uso de la red social Twitter como fuente de origen de datos. Para esto se utilizó su interfaz de programación de aplicaciones (Application Programming Interface, API), la cual permite tomar datos de esta red social en tiempo real e identificar puntos probables de congestión. Este estudio presenta resultados de pruebas realizadas con la aplicación, durante un período de 9 meses.
Advisors/Committee Members: Sánchez Santamaría, Héctor (advisor), Macías Macías, Miguel (advisor).
Subjects/Keywords: Congestión;
Twitter;
Decisiones;
Congestion;
Decisions
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APA (6th Edition):
Herrera Herrera, N. I. (2020). Sistema para la toma de decisiones en la congestión vehicular de Quito (Ecuador), mediante análisis de datos sensoriales y sociales
. (Thesis). Universidad de Extremadura. Retrieved from http://hdl.handle.net/10662/10160
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Herrera Herrera, Nelson Iván. “Sistema para la toma de decisiones en la congestión vehicular de Quito (Ecuador), mediante análisis de datos sensoriales y sociales
.” 2020. Thesis, Universidad de Extremadura. Accessed March 04, 2021.
http://hdl.handle.net/10662/10160.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Herrera Herrera, Nelson Iván. “Sistema para la toma de decisiones en la congestión vehicular de Quito (Ecuador), mediante análisis de datos sensoriales y sociales
.” 2020. Web. 04 Mar 2021.
Vancouver:
Herrera Herrera NI. Sistema para la toma de decisiones en la congestión vehicular de Quito (Ecuador), mediante análisis de datos sensoriales y sociales
. [Internet] [Thesis]. Universidad de Extremadura; 2020. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10662/10160.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Herrera Herrera NI. Sistema para la toma de decisiones en la congestión vehicular de Quito (Ecuador), mediante análisis de datos sensoriales y sociales
. [Thesis]. Universidad de Extremadura; 2020. Available from: http://hdl.handle.net/10662/10160
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
INP Toulouse
18.
Sallantin, Renaud.
Optimisation de bout-en-bout du démarrage des connexions TCP : TCP startup end-to-end optimisation.
Degree: Docteur es, Réseaux, télécommunications, systèmes et architecture, 2014, INP Toulouse
URL: http://www.theses.fr/2014INPT0087
► Dans cette thèse, nous proposons un mécanisme appelé Initial Spreading qui permet une optimisation remarquable des performances de TCP pour les connexions de petites tailles,…
(more)
▼ Dans cette thèse, nous proposons un mécanisme appelé Initial Spreading qui permet une optimisation remarquable des performances de TCP pour les connexions de petites tailles, représentant plus de 90% des connexions échangées dans l’Internet. Cette solution est d’autant plus intéressante que pour certaines technologies telles qu’un lien satellite, le temps d’aller-retour particulièrement long est très pénalisant, et des solutions spécifiques ont dû être implantées qui empêchent l’intégration du satellite dans un système de communication plus large. Nous montrons que l’Initial Spreading est non seulement plus performant, mais surtout plus général car pertinent dans toutes les situations. De plus, peu intrusif, il ne compromet aucune des évolutions de TCP passées ou à venir.
In this Ph.D. Thesis, we propose a mechanism called Initial Spreading that significantly improves the TCP short-lived connexions performance, and so more than 90% of the Internet connections. Indeed, if regular TCP without our mechanism can be considered as efficient for terrestrial networks, its behavior is strongly damaged by the long delay of a satellite communication. Satellite community developed then some satellite specific solutions that provide good performance, but prevent the joint use of satellite and other technologies. We show therefore that Initial Spreading is not only more efficient than regular solutions but enables also the use of an unique protocol whatever the context. Moreover, being non-intrusive, it is suitable for past and future TCP evolutions.
Advisors/Committee Members: Beylot, André-Luc (thesis director), Chaput, Emmanuel (thesis director).
Subjects/Keywords: Tcp; Satellite; Optimisation; Performance; Congestion; Tcp; Satellite; Optimisation; Performance; Congestion
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APA (6th Edition):
Sallantin, R. (2014). Optimisation de bout-en-bout du démarrage des connexions TCP : TCP startup end-to-end optimisation. (Doctoral Dissertation). INP Toulouse. Retrieved from http://www.theses.fr/2014INPT0087
Chicago Manual of Style (16th Edition):
Sallantin, Renaud. “Optimisation de bout-en-bout du démarrage des connexions TCP : TCP startup end-to-end optimisation.” 2014. Doctoral Dissertation, INP Toulouse. Accessed March 04, 2021.
http://www.theses.fr/2014INPT0087.
MLA Handbook (7th Edition):
Sallantin, Renaud. “Optimisation de bout-en-bout du démarrage des connexions TCP : TCP startup end-to-end optimisation.” 2014. Web. 04 Mar 2021.
Vancouver:
Sallantin R. Optimisation de bout-en-bout du démarrage des connexions TCP : TCP startup end-to-end optimisation. [Internet] [Doctoral dissertation]. INP Toulouse; 2014. [cited 2021 Mar 04].
Available from: http://www.theses.fr/2014INPT0087.
Council of Science Editors:
Sallantin R. Optimisation de bout-en-bout du démarrage des connexions TCP : TCP startup end-to-end optimisation. [Doctoral Dissertation]. INP Toulouse; 2014. Available from: http://www.theses.fr/2014INPT0087
19.
Qu, Tongbin.
Investigating the Effect of Freeway Congestion Thresholds on Decision-making Inputs.
Degree: PhD, Urban and Regional Sciences, 2011, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8191
► Congestion threshold is embedded in the congestion definition. Two basic approaches exist in current practice for setting the congestion threshold. One common approach uses the…
(more)
▼ Congestion threshold is embedded in the
congestion definition. Two basic
approaches exist in current practice for setting the
congestion threshold. One common
approach uses the “free-flow” or unimpeded conditions as the
congestion threshold.
Another approach uses target or “acceptable” conditions. The limited research that has
been conducted on the
congestion threshold issue focuses on operational problems or
policy debates, but relatively little investigation of the effect on decision-making for
transportation investment and resource allocation.
This research investigated the differences inherent in the threshold choices using
detailed freeway data from seven metropolitan areas.
Congestion performance measures
of delay per mile, Travel Time Index and Planning Time Index were evaluated. This
research specifically examined: 1) the ranking values of
congestion measure for different
congestion thresholds under a variety of real-world travel time distributions, 2) the
relationship between change of
congestion threshold and change of performance
measure, and 3) the appropriateness of using speed limit as a
congestion threshold
choice by evaluating the peak and off-peak average speed changes in relation to a speed
limit change in Houston, Texas.
The rankings of
congestion measures for freeway segments hold steady across
the
congestion thresholds ranging from 60 mph to 30 mph and across the
congestion
measures. From an investment point of view, the
congestion threshold speed used is not
a concern for funding allocation.
The relationship between the delay values for an alternative threshold and the 60
mph threshold has a quadratic form. As the alternative threshold decreases further away
from 60 mph, the increment is larger. The more congested a section is, the less the
threshold affects measured
congestion. For very congested sections, most of the delay is
associated with speeds below 30 mph.
The posted speed limit affects travel time distribution in the free flow driving
condition but does not affect travel time distribution during congested driving conditions.
However, if the speed limit or a percentage of speed limit is used to estimate the
congestion, the amount of
congestion may be underestimated because the free flow
speed is higher than the speed limit.
Advisors/Committee Members: Dumbaugh, Eric (advisor), Lomax, Timothy J. (advisor), Speed, Michael (committee member), Zhang, Ming (committee member).
Subjects/Keywords: Congestion; Congestion threshold; Congestion measures; Performance measures
…Figure 5.5
Travel time distribution examples for explaining congestion
ranking differences… …damage; 2) energy consumption; 3) climate change, 4) traffic congestion,
5)… …impacts, traffic congestion is the most noticeable and most frequently encountered.
In the… …United States, congestion levels continue to rise in cities of all sizes. The
annual peak hour… …delay per traveler has almost tripled from 1982 to 2007 (2). In 2007
congestion cost…
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APA (6th Edition):
Qu, T. (2011). Investigating the Effect of Freeway Congestion Thresholds on Decision-making Inputs. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8191
Chicago Manual of Style (16th Edition):
Qu, Tongbin. “Investigating the Effect of Freeway Congestion Thresholds on Decision-making Inputs.” 2011. Doctoral Dissertation, Texas A&M University. Accessed March 04, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8191.
MLA Handbook (7th Edition):
Qu, Tongbin. “Investigating the Effect of Freeway Congestion Thresholds on Decision-making Inputs.” 2011. Web. 04 Mar 2021.
Vancouver:
Qu T. Investigating the Effect of Freeway Congestion Thresholds on Decision-making Inputs. [Internet] [Doctoral dissertation]. Texas A&M University; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8191.
Council of Science Editors:
Qu T. Investigating the Effect of Freeway Congestion Thresholds on Decision-making Inputs. [Doctoral Dissertation]. Texas A&M University; 2011. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8191
Mississippi State University
20.
Al-Khaled, Abdullah.
Criticality analysis of surface transportation infrastructures based on freight flow network optimization.
Degree: PhD, Industrial and Systems Engineering, 2013, Mississippi State University
URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142013-124048/
;
► The purpose of this dissertation is to develop models and solution approaches to identify the critical hierarchies of railroad and surface transportation network infrastructures,…
(more)
▼ The purpose of this dissertation is to develop models and solution approaches to identify the critical hierarchies of railroad and surface transportation network infrastructures, and to facilitate re-routing options that will be necessary for traffic management decision makings in the event of a disaster. We focus on building mathematical models for routing/re-routing of traffic considering the
congestion effects which are obvious in the disrupted networks due to disaster. Based on these models, the critical hierarchies of infrastructures are determined. For railroad, we develop two different models: the first one considers unit train re-routing and the other one considers <i>Train Design</i> approach. For intermodal system, the optimization model facilitates optimal re-routing of traffic using three surface transportation modes: highway, railway and waterway, considering the
congestion characteristics of each mode.
For the first model of railroad routing, the optimization model optimally routes unit trains based on a minimum cost network flow formulation with nonlinear objective function. The nonlinear objective function is approximated with a piece-wise linear function to make the model computationally tractable. The second model, known as
<i>Train Design</i> optimization, is a highly combinatorial and complex optimization problem. The developed models computational complexity suggests us to use heuristic solution procedures. We develop a special heuristic algorithm to route the traffic in the congested network. In this heuristic procedure, we divide the problem into two sub-problems (SPs): SP-1 is termed as Block-to-Train Assignment (BTA) problem, and SP-2 is termed as Train Routing (TR) problem. BTA problem provides a feasible solution that includes the minimum number of required trains with the pick-up and drop-off points of the blocks carried by these trains, and TR problem ensures the optimal routing of these trains.
Similar to railroad, an optimization model is developed for optimal routing/re-routing of traffic using the intermodal network. It is a mixed integer programming (MIP) problem, which is not practical to solve for real-world problem instances within reasonable amount of time. Linear relaxation to this model provides a very good lower bound closer to optimal solution. Therefore, we implemented our case-study for a real-world intermodal transportation system of five U.S. states.
Advisors/Committee Members: Burak Ekşioğlu (chair), Mingzhou Jin (committee member), Sandra D. Ekşioğlu (committee member), Li Zhang (committee member).
Subjects/Keywords: congestion; transportation resilience; intermodal; disruption; re-routing
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APA (6th Edition):
Al-Khaled, A. (2013). Criticality analysis of surface transportation infrastructures based on freight flow network optimization. (Doctoral Dissertation). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142013-124048/ ;
Chicago Manual of Style (16th Edition):
Al-Khaled, Abdullah. “Criticality analysis of surface transportation infrastructures based on freight flow network optimization.” 2013. Doctoral Dissertation, Mississippi State University. Accessed March 04, 2021.
http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142013-124048/ ;.
MLA Handbook (7th Edition):
Al-Khaled, Abdullah. “Criticality analysis of surface transportation infrastructures based on freight flow network optimization.” 2013. Web. 04 Mar 2021.
Vancouver:
Al-Khaled A. Criticality analysis of surface transportation infrastructures based on freight flow network optimization. [Internet] [Doctoral dissertation]. Mississippi State University; 2013. [cited 2021 Mar 04].
Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142013-124048/ ;.
Council of Science Editors:
Al-Khaled A. Criticality analysis of surface transportation infrastructures based on freight flow network optimization. [Doctoral Dissertation]. Mississippi State University; 2013. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03142013-124048/ ;
Rochester Institute of Technology
21.
Sungur, Asli.
TCP – Random Early Detection (RED) mechanism for Congestion Control.
Degree: MS, Information Sciences and Technologies (GCCIS), 2015, Rochester Institute of Technology
URL: https://scholarworks.rit.edu/theses/8904
► This thesis discusses the Random Early Detection (RED) algorithm, proposed by Sally Floyd, used for congestion avoidance in computer networking, how existing algorithms compare…
(more)
▼ This thesis discusses the Random Early Detection (RED) algorithm, proposed by Sally Floyd, used for
congestion avoidance in computer networking, how existing algorithms compare to this approach and the configuration and implementation of the Weighted Random Early Detection (WRED) variation.
RED uses a probability approach in order to calculate the probability that a packet will be dropped before periods of high
congestion, relative to the minimum and maximum queue threshold, average queue length, packet size and the number of packets since the last drop.
The motivation for this thesis has been the high QoS provided to current delay-sensitive applications such as Voice-over-IP (VoIP) by the incorporation of
congestion avoidance algorithms derived from the original RED design [45]. The WRED variation of RED is not directly invoked on the VoIP class because
congestion avoidance mechanisms are not configured for voice queues. WRED is instead used to prioritize other traffic classes in order to avoid
congestion to provide and guarantee high quality of service for voice traffic [43][44].
The most notable simulations performed for the RED algorithm in comparison to the Tail Drop (TD) and Random Drop (RD) algorithms have been detailed in order to show that RED is much more advantageous in terms of
congestion control in a network. The WRED, Flow RED (FRED) and Adaptive RED (ARED) variations of the RED algorithm have been detailed with emphasis on WRED. Details of the concepts of forwarding classes, output queues, traffic policies, traffic classes, class maps, schedulers, scheduler maps, and DSCP classification shows that the WRED feature is easily configurable on tier-1 vendor routers.
Advisors/Committee Members: Ali Raza.
Subjects/Keywords: Congestion avoidance; Networking; Random early detection
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APA (6th Edition):
Sungur, A. (2015). TCP – Random Early Detection (RED) mechanism for Congestion Control. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/8904
Chicago Manual of Style (16th Edition):
Sungur, Asli. “TCP – Random Early Detection (RED) mechanism for Congestion Control.” 2015. Masters Thesis, Rochester Institute of Technology. Accessed March 04, 2021.
https://scholarworks.rit.edu/theses/8904.
MLA Handbook (7th Edition):
Sungur, Asli. “TCP – Random Early Detection (RED) mechanism for Congestion Control.” 2015. Web. 04 Mar 2021.
Vancouver:
Sungur A. TCP – Random Early Detection (RED) mechanism for Congestion Control. [Internet] [Masters thesis]. Rochester Institute of Technology; 2015. [cited 2021 Mar 04].
Available from: https://scholarworks.rit.edu/theses/8904.
Council of Science Editors:
Sungur A. TCP – Random Early Detection (RED) mechanism for Congestion Control. [Masters Thesis]. Rochester Institute of Technology; 2015. Available from: https://scholarworks.rit.edu/theses/8904
Cornell University
22.
Chen, Ruoyun.
Integrating Congestion Pricing And Transit Investment Planning.
Degree: M.S., Civil and Environmental Engineering, Civil and Environmental Engineering, 2015, Cornell University
URL: http://hdl.handle.net/1813/41006
► This paper develops a mathematical model and solution procedure to identify an optimal zonal pricing scheme for automobile traffic to incentivize the expanded use of…
(more)
▼ This paper develops a mathematical model and solution procedure to identify an optimal zonal pricing scheme for automobile traffic to incentivize the expanded use of transit as a mechanism to stem
congestion and the social costs that arise from that
congestion. The optimization model assumes that there is a homogenous collection of users whose behavior can be described as utility maximizers and for which their utility function is driven by monetary costs. These monetary costs are assumed to be the tolls in place, the per mile cost to drive, and the value of their time. We assume that there is a system owner who sets the toll prices, collects the proceeds from the tolls, and invests those funds in transit system improvements in the form of headway reductions. This yields a bi-level optimization model which we solve using an iterative procedure that is an integration of a genetic algorithm and the Frank-Wolfe method. The method and solution procedure is applied to an illustrative example.
Advisors/Committee Members: Nozick,Linda K. (chair), Kleinberg,Jon M. (committee member).
Subjects/Keywords: Congestion Pricing; Transit Investment; Bi-level Optimization
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APA (6th Edition):
Chen, R. (2015). Integrating Congestion Pricing And Transit Investment Planning. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/41006
Chicago Manual of Style (16th Edition):
Chen, Ruoyun. “Integrating Congestion Pricing And Transit Investment Planning.” 2015. Masters Thesis, Cornell University. Accessed March 04, 2021.
http://hdl.handle.net/1813/41006.
MLA Handbook (7th Edition):
Chen, Ruoyun. “Integrating Congestion Pricing And Transit Investment Planning.” 2015. Web. 04 Mar 2021.
Vancouver:
Chen R. Integrating Congestion Pricing And Transit Investment Planning. [Internet] [Masters thesis]. Cornell University; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1813/41006.
Council of Science Editors:
Chen R. Integrating Congestion Pricing And Transit Investment Planning. [Masters Thesis]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/41006
Texas A&M University
23.
Jindal, Tanuj.
Detecting Tangled Logic Structures in VLSI Netlists.
Degree: MS, Computer Engineering, 2010, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8511
► This thesis proposes a new problem of identifying large and tangled logic structures in a synthesized netlist. Large groups of cells that are highly interconnected…
(more)
▼ This thesis proposes a new problem of identifying large and tangled logic structures in a
synthesized netlist. Large groups of cells that are highly interconnected to each other can
often create potential routing hotspots that require special placement constraints. They can
also indicate problematic clumps of logic that either require resynthesis to reduce wiring
demand or specialized datapath placement. At a glance, this formulation appears similar
to conventional circuit clustering, but there are two important distinctions. First, we are
interested in finding large groups of cells that represent entire logic structures like adders
and decoders, as opposed to clusters with only a handful of cells. Second, we seek to pull
out only the structures of interest, instead of assigning every cell to a cluster to reduce
problem complexity. This work proposes new metrics for detecting structures based on
Rent’s rule that, unlike traditional cluster metrics, are able to fairly differentiate between
large and small groups of cells. Next, we demonstrate how these metrics can be applied to
identify structures in a netlist. Finally, our experiments demonstrate the ability to predict
and alleviate routing hotspots on a real industry design using our metrics and method.
Advisors/Committee Members: Hu, Jiang (advisor), Li, Peng (committee member), Jiang, Anxiao (committee member).
Subjects/Keywords: TLS; Cluster; congestion
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APA (6th Edition):
Jindal, T. (2010). Detecting Tangled Logic Structures in VLSI Netlists. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8511
Chicago Manual of Style (16th Edition):
Jindal, Tanuj. “Detecting Tangled Logic Structures in VLSI Netlists.” 2010. Masters Thesis, Texas A&M University. Accessed March 04, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8511.
MLA Handbook (7th Edition):
Jindal, Tanuj. “Detecting Tangled Logic Structures in VLSI Netlists.” 2010. Web. 04 Mar 2021.
Vancouver:
Jindal T. Detecting Tangled Logic Structures in VLSI Netlists. [Internet] [Masters thesis]. Texas A&M University; 2010. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8511.
Council of Science Editors:
Jindal T. Detecting Tangled Logic Structures in VLSI Netlists. [Masters Thesis]. Texas A&M University; 2010. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8511
Addis Ababa University
24.
Wondwossen, Taddesse.
ASSESSING & QUANTIFING THE LEVEL OF TRAFFIC CONGESTION AT MAJOR INTERSECTIONS IN ADDIS ABABA (A CASE FOR EAST-WEST CORRIDOR)
.
Degree: 2013, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/4132
► Traffic Congestion is an ever growing chronic problem in the transportation system soon after the invention and mass production of automobiles. All major cities both…
(more)
▼ Traffic
Congestion is an ever growing chronic problem in the transportation system soon after
the invention and mass production of automobiles. All major cities both in developed and
developing countries are facing the problem due to increasing travel demand which follows
economic and population growth. Traffic
congestion directly affects commuters with an
increased travel time, excessive delay in a queue, increased fuel cost, delay for important
appointment and job, loss in productive hours; and it indirectly affects the living standard and
the environment as well. Hence, traffic
congestion cause upon road users and cities to incur a
significant amount of money for both economic and social costs. Quantifying the level of the
traffic
congestion and understanding how much effect and cost are being incurred due to traffic
congestion; hence, will be important for making improvement decisions and evaluate
implemented mitigation measures.
Following the economic and population growth in Addis Ababa, traffic
congestion problem has
emerged and the problem is even growing faster. In this study, the level of the traffic
congestion
in Addis Ababa city was quantified using travel time approach. The city’s one of the most
congested East-West corridor was considered and travel time, traffic volume, and vehicle
occupancy data were collected at four midblock and four intersections. Accordingly, the travel
rate, the delay rate, total travel delay (Veh-Min and Per-min), buffer index and planning time
index were calculated. And also, the average hourly travel rate is correlated with the average
hourly traffic accident data and
congestion spots and accident black spots were plotted on the
GIS map to see the relationship between the traffic accident and traffic
congestion.
Accordingly, the result showed that on average about 18,000 Veh-min or 38 Veh-day and about
169,000 Per-min or 352-person-day are wasted at each major intersection entry and the city
incurs annually about 5-8 Million Birr per intersection only for vehicle and fuel cost. The result
also showed that the city’s traffic accident rate correlated with travel rate better than traffic
volume and the
congestion spots identified from questionnaire data conside with the black spots
identified by the national road safety agency.
Advisors/Committee Members: Girma Gebresenbet (Prof.) (advisor).
Subjects/Keywords: Traffic Congestion;
Major Intersections in Addis Ababa
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Manager
APA (6th Edition):
Wondwossen, T. (2013). ASSESSING & QUANTIFING THE LEVEL OF TRAFFIC CONGESTION AT MAJOR INTERSECTIONS IN ADDIS ABABA (A CASE FOR EAST-WEST CORRIDOR)
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/4132
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wondwossen, Taddesse. “ASSESSING & QUANTIFING THE LEVEL OF TRAFFIC CONGESTION AT MAJOR INTERSECTIONS IN ADDIS ABABA (A CASE FOR EAST-WEST CORRIDOR)
.” 2013. Thesis, Addis Ababa University. Accessed March 04, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/4132.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wondwossen, Taddesse. “ASSESSING & QUANTIFING THE LEVEL OF TRAFFIC CONGESTION AT MAJOR INTERSECTIONS IN ADDIS ABABA (A CASE FOR EAST-WEST CORRIDOR)
.” 2013. Web. 04 Mar 2021.
Vancouver:
Wondwossen T. ASSESSING & QUANTIFING THE LEVEL OF TRAFFIC CONGESTION AT MAJOR INTERSECTIONS IN ADDIS ABABA (A CASE FOR EAST-WEST CORRIDOR)
. [Internet] [Thesis]. Addis Ababa University; 2013. [cited 2021 Mar 04].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/4132.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wondwossen T. ASSESSING & QUANTIFING THE LEVEL OF TRAFFIC CONGESTION AT MAJOR INTERSECTIONS IN ADDIS ABABA (A CASE FOR EAST-WEST CORRIDOR)
. [Thesis]. Addis Ababa University; 2013. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4132
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Linnaeus University
25.
Strömbäck, Tobias.
Congestion Taxes in Sweden : A comparable study to examine how congestion taxation affect the usage of public transportation in Gothenburg.
Degree: Economics and Statistics, 2020, Linnaeus University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96477
► This paper examines the effect the Gothenburg congestion tax, which was implemented in 2013, has had on the usage of public transportation. The aim…
(more)
▼ This paper examines the effect the Gothenburg congestion tax, which was implemented in 2013, has had on the usage of public transportation. The aim of the policy is to reduce congestion, emissions and to finance public transportation infrastructure. The analysis contains panel data over the years 2010 - 2016 in order to measure the changes for the corresponding period of time. This research will contribute to existing research with a new approach since the instrument for controlling congestion is recently implemented, and the empirics are underdeveloped within this field. The difference in difference analysis is executed to isolate the impact of the introduced congestion tax. Gothenburg act as a treatment region, and Växjö act as a control region. Växjö is used as a control region due to limitations in the collection of data; differences between the selected regions are present and are essential to recognize. Significant differences are found in the population, controlled by a generated ratio between monthly commutes and population. Parallel trends are analyzed to increase the validity of the approach and estimated to be held constant during this period. Results show increased usage of public transportation in Gothenburg by approximately five trips per citizen monthly, due to the implementation of the congestion tax. Citizens in Gothenburg avoid getting additional taxied by correcting their type of transit.
Subjects/Keywords: Congestion tax; public transport; commutes.; Economics; Nationalekonomi
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APA (6th Edition):
Strömbäck, T. (2020). Congestion Taxes in Sweden : A comparable study to examine how congestion taxation affect the usage of public transportation in Gothenburg. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96477
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Strömbäck, Tobias. “Congestion Taxes in Sweden : A comparable study to examine how congestion taxation affect the usage of public transportation in Gothenburg.” 2020. Thesis, Linnaeus University. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96477.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Strömbäck, Tobias. “Congestion Taxes in Sweden : A comparable study to examine how congestion taxation affect the usage of public transportation in Gothenburg.” 2020. Web. 04 Mar 2021.
Vancouver:
Strömbäck T. Congestion Taxes in Sweden : A comparable study to examine how congestion taxation affect the usage of public transportation in Gothenburg. [Internet] [Thesis]. Linnaeus University; 2020. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96477.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Strömbäck T. Congestion Taxes in Sweden : A comparable study to examine how congestion taxation affect the usage of public transportation in Gothenburg. [Thesis]. Linnaeus University; 2020. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96477
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Georgia Tech
26.
Zhong, Hai.
Congestion game-based task allocation for multi-robot teams.
Degree: MS, Electrical and Computer Engineering, 2020, Georgia Tech
URL: http://hdl.handle.net/1853/62843
► Multi-robot teams can complete complex missions that are not amenable to an individual robot. A team of heterogeneous robots with complementing capabilities is endowed with…
(more)
▼ Multi-robot teams can complete complex missions that are not amenable to an individual robot. A team of heterogeneous robots with complementing capabilities is endowed with advantages to allow deep collaboration in dynamic and complicated environments. Multi-robot Task Allocation (MRTA) presents a fundamental for multi-robot system research. Despite the previous research efforts, there remains a knowledge gap in developing decentralized approaches for MRTA by viewing robots as resources and optimizing the distribution of robots to achieve the best overall performance at the system level. To address this knowledge gap, the objective of this research is to develop decentralized resource allocation algorithms to provide approximate solutions for the MRTA problem. Both standard
congestion game theory and weighted
congestion game theory are exploited as the theoretical framework to formulate and solve the MRTA problems. Two types of resource allocation problems are considered, one has increasing marginal gain with respect to the number of participating robots, the other has decreasing marginal gain with respect to the number of participating robots. For MRTA problems with homogeneous robot teams, the sequential best response dynamics is integrated in the framework of standard
congestion game theory. A concurrent version of best response dynamics with convergence guarantees is developed. In addition, a decentralized dual greedy algorithm is proposed and its convergence to a pure Nash equilibrium is proved. For MRTA problems with heterogeneous robot teams, the best sequential dynamics is shown to converge to pure Nash equilibrium in the framework of weighted
congestion games. The suboptimality of the approximate solutions is discussed by λ-μ smoothness technique. Simulations and experiments using robots in the Robotarium are conducted to validate the effectiveness of the proposed algorithms.
Advisors/Committee Members: Hutchinson, Seth (advisor), Coogan, Samuel (committee member), Vamvoudakis, Kyriakos (committee member).
Subjects/Keywords: Multi-robot systems; Task allocation; Congestion games
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APA (6th Edition):
Zhong, H. (2020). Congestion game-based task allocation for multi-robot teams. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/62843
Chicago Manual of Style (16th Edition):
Zhong, Hai. “Congestion game-based task allocation for multi-robot teams.” 2020. Masters Thesis, Georgia Tech. Accessed March 04, 2021.
http://hdl.handle.net/1853/62843.
MLA Handbook (7th Edition):
Zhong, Hai. “Congestion game-based task allocation for multi-robot teams.” 2020. Web. 04 Mar 2021.
Vancouver:
Zhong H. Congestion game-based task allocation for multi-robot teams. [Internet] [Masters thesis]. Georgia Tech; 2020. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1853/62843.
Council of Science Editors:
Zhong H. Congestion game-based task allocation for multi-robot teams. [Masters Thesis]. Georgia Tech; 2020. Available from: http://hdl.handle.net/1853/62843
University of Illinois – Urbana-Champaign
27.
Dong, Mo.
Consistent high performance and flexible congestion control architecture.
Degree: PhD, Computer Science, 2017, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/100418
► The part of TCP software stack that controls how fast a data sender transfers packets is usually referred as congestion control, because it was originally…
(more)
▼ The part of TCP software stack that controls how fast a data sender transfers packets is usually referred as
congestion control, because it was originally introduced to avoid network
congestion of multiple competing flows. During the recent 30 years of Internet evolution, traditional TCP
congestion control architecture, though having a army of specially-engineered implementations and improvements over the original software, suffers increasingly more from surprisingly poor performance in today's complicated network conditions. We argue the traditional TCP
congestion control family has little hope of achieving consistent high performance due to a fundamental architectural deficiency: hardwiring packet-level events to control responses.
In this thesis, we propose Performance-oriented
Congestion Control (PCC), a new
congestion control architecture in which each sender continuously observes the connection between its rate control actions and empirically experienced performance, enabling it to use intelligent control algorithms to consistently adopt actions that result in high performance. We first build the above foundation of PCC architecture analytically prove the viability of this new
congestion control architecture. Specifically, we show that, controversial to intuition, with certain form of utility function and a theoretically simplified rate control algorithm, selfishly competing senders converge to a fair and stable Nash Equilibrium. With this architectural and theoretical guideline, we then design and implement the first
congestion control protocol in PCC family: PCC Allegro. PCC Allegro immediate demonstrates its architectural benefits with significant, often more than 10X, performance gain on a wide spectrum of challenging network conditions. With these very encouraging performance validation, we further advance PCC's architecture on both utilty function framework and the learning rate control algorithm. Taking a principled approach using online learning theory, we designed PCC Vivace with a new strictly socially concave utility function framework and a gradient-ascend based learning rate control algorithm. PCC Vivace significantly improves performance on fast-changing networks, yields better tradeoff in convergence speed and stability and better TCP friendliness comparing to PCC Allegro and other state-of-art new
congestion control protocols. Moreover, PCC Vivace's expressive utility function framework can be tuned differently at different competing flows to produce predictable converged throughput ratios for each flow. This opens significant future potential for PCC Vivace in centrally control networking paradigm like Software Defined Networks (SDN). Finally, with all these research advances, we aim to push PCC architecture to production use with a a user-space tunneling proxy and successfully integration with Google's QUIC transport framework.
Advisors/Committee Members: Godfrey, Philip B (advisor), Godfrey, Philip B (Committee Chair), Caesar, Matthew (committee member), Nahrstedt, Klara (committee member), Iyengar, Jana (committee member).
Subjects/Keywords: Congestion Control; Internet protocols; Data Transfer
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APA (6th Edition):
Dong, M. (2017). Consistent high performance and flexible congestion control architecture. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/100418
Chicago Manual of Style (16th Edition):
Dong, Mo. “Consistent high performance and flexible congestion control architecture.” 2017. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 04, 2021.
http://hdl.handle.net/2142/100418.
MLA Handbook (7th Edition):
Dong, Mo. “Consistent high performance and flexible congestion control architecture.” 2017. Web. 04 Mar 2021.
Vancouver:
Dong M. Consistent high performance and flexible congestion control architecture. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2017. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2142/100418.
Council of Science Editors:
Dong M. Consistent high performance and flexible congestion control architecture. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2017. Available from: http://hdl.handle.net/2142/100418
Boston University
28.
Xin, Liangxiao.
Cascading attacks in Wi-Fi networks: demonstration and counter-measures.
Degree: PhD, Systems Engineering, 2018, Boston University
URL: http://hdl.handle.net/2144/32678
► Wi-Fi (IEEE 802.11) is currently one of the primary media to access the Internet. Guaranteeing the availability of Wi-Fi networks is essential to numerous online…
(more)
▼ Wi-Fi (IEEE 802.11) is currently one of the primary media to access the Internet. Guaranteeing the availability of Wi-Fi networks is essential to numerous online activities, such as e-commerce, video streaming, and IoT services. Attacks on availability are generally referred to as Denial-of-Service (DoS) attacks. While there exists signif- icant literature on DoS attacks against Wi-Fi networks, most of the existing attacks are localized in nature, i.e., the attacker must be in the vicinity of the victim. The purpose of this dissertation is to investigate the feasibility of mounting global DoS attacks on Wi-Fi networks and develop effective counter-measures.
First, the dissertation unveils the existence of a vulnerability at the MAC layer of Wi-Fi, which allows an adversary to remotely launch a Denial-of-Service (DoS) attack that propagates both in time and space. This vulnerability stems from a coupling effect induced by hidden nodes. Cascading DoS attacks can congest an entire network and do not require the adversary to violate any protocol. The dissertation demonstrates the feasibility of such attacks through experiments with real Wi-Fi cards, extensive ns-3 simulations, and theoretical analysis. The simulations show the attack is effective both in networks operating under fixed and varying bit rates, as well as ad hoc and infrastructure modes. To gain insight into the root-causes of the attack, the network is modeled as a dynamical system and its limiting behavior is analyzed. The model predicts that a phase transition (and hence a cascading attack) is possible when the retry limit parameter of Wi-Fi is greater or equal to 7.
Next, the dissertation identifies a vulnerability at the physical layer of Wi-Fi that allows an adversary to launch cascading attacks with weak interferers. This vulnerability is induced by the state machine’s logic used for processing incoming packets. In contrast to the previous attack, this attack is effective even when interference caused by hidden nodes do not corrupt every packet transmission. The attack forces Wi-Fi rate adaptation algorithms to operate at a low bit rate and significantly degrades network performance, such as communication reliability and throughput.
Finally, the dissertation proposes, analyzes, and simulates a method to prevent such attacks from occurring. The key idea is to optimize the duration of packet transmissions. To achieve this goal, it is essential to properly model the impact of MAC overhead, and in particular MAC timing parameters. A new theoretical model is thus proposed, which relates the utilization of neighboring pairs of nodes using a sequence of iterative equations and uses fixed point techniques to study the limiting behavior of the sequence. The analysis shows how to optimally set the packet duration so that, on the one hand, cascading DoS attacks are avoided and, on the other hand, throughput is maximized. The analytical results are validated by extensive ns-3 simulations. A key insight obtained from the analysis and simulations is that…
Advisors/Committee Members: Starobinski, David (advisor).
Subjects/Keywords: Computer engineering; Chain reaction; Congestion collapse
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APA (6th Edition):
Xin, L. (2018). Cascading attacks in Wi-Fi networks: demonstration and counter-measures. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/32678
Chicago Manual of Style (16th Edition):
Xin, Liangxiao. “Cascading attacks in Wi-Fi networks: demonstration and counter-measures.” 2018. Doctoral Dissertation, Boston University. Accessed March 04, 2021.
http://hdl.handle.net/2144/32678.
MLA Handbook (7th Edition):
Xin, Liangxiao. “Cascading attacks in Wi-Fi networks: demonstration and counter-measures.” 2018. Web. 04 Mar 2021.
Vancouver:
Xin L. Cascading attacks in Wi-Fi networks: demonstration and counter-measures. [Internet] [Doctoral dissertation]. Boston University; 2018. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2144/32678.
Council of Science Editors:
Xin L. Cascading attacks in Wi-Fi networks: demonstration and counter-measures. [Doctoral Dissertation]. Boston University; 2018. Available from: http://hdl.handle.net/2144/32678
29.
Alassaf, Mohammed.
Congestion charge and its alternatives.
Degree: MS, Economics, 2015, California State Polytechnic University – Pomona
URL: http://hdl.handle.net/10211.3/157295
► The need for congestion charge is increasing every year due to many reasons mainly the population growth, which affects the number of vehicles on the…
(more)
▼ The need for
congestion charge is increasing every year due to many reasons mainly the population growth, which affects the number of vehicles on the roads. Therefore, traffic
congestion is a real problem due to both the effects it causes such as delays, fuel consumption and pollution, road rage and emergency vehicles problems, and road space being a limited resource in its nature. Therefore, the more an individual uses the space on the road, the less available for others which leads to making drivers to travel more than they desire and results in loss of time value given an increase on time spent traveling, assuming identical drivers and speeds. Reducing traffic has both economic and environmental advantages but choosing the best method can be crucial in achieving these goals. This paper examines whether
congestion charge is the best policy for reducing traffic
congestion given London and Stockholm experience or better alternatives still exist. In addition, it aims first on examining the results of London and Stockholm
congestion charge, and whether they have succeeded or not on achieving their goals. Therefore, the data is obtained from Transport for London and some other researchers such as Jonathan Leape and Jan Owen Jansson. Second, this paper provides alternatives to the
congestion charge, which some of them don???t suffer from the disadvantages the
congestion charge does such as high cost and regressive in nature. These alternatives will show that better solutions to a traffic
congestion can be found without the need of making lower income residents suffer the higher cost burden or government paying much higher costs than they need to.
Advisors/Committee Members: Brown, Bruce (advisor), Hunter, Greg (committee member).
Subjects/Keywords: London congestion
…identified public transport and congestion as the two most “important problems requiring… …calculate their
own benefits to costs ratio of the trip, which results in traffic congestion, air… …congestion
especially when there are multiple traffic lights that allow drivers to turn right or… …congestion.
There are other reasons that result in traffic congestion such as accidents or drivers… …stop while ignoring the costs this can cause on other drivers. Therefore, congestion
problem…
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APA ·
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APA (6th Edition):
Alassaf, M. (2015). Congestion charge and its alternatives. (Masters Thesis). California State Polytechnic University – Pomona. Retrieved from http://hdl.handle.net/10211.3/157295
Chicago Manual of Style (16th Edition):
Alassaf, Mohammed. “Congestion charge and its alternatives.” 2015. Masters Thesis, California State Polytechnic University – Pomona. Accessed March 04, 2021.
http://hdl.handle.net/10211.3/157295.
MLA Handbook (7th Edition):
Alassaf, Mohammed. “Congestion charge and its alternatives.” 2015. Web. 04 Mar 2021.
Vancouver:
Alassaf M. Congestion charge and its alternatives. [Internet] [Masters thesis]. California State Polytechnic University – Pomona; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10211.3/157295.
Council of Science Editors:
Alassaf M. Congestion charge and its alternatives. [Masters Thesis]. California State Polytechnic University – Pomona; 2015. Available from: http://hdl.handle.net/10211.3/157295
30.
Aguilar, Michael James.
Identifying Data Exchange Congestion Through Real-Time Monitoring Of Beowulf Cluster Infiniband Networks.
Degree: MS, Computer Science, 2015, University of North Dakota
URL: https://commons.und.edu/theses/1858
► The ability to gather data from many types of new information sources has grown quickly using new technologies. The ability to store and retrieve…
(more)
▼ The ability to gather data from many types of new information sources has grown quickly using new technologies. The ability to store and retrieve large quantities of data from these new sources has created a need for computing platforms that are able to process the data for information. High Performance Computing Cluster systems have been developed to fulfill a role required for fast processing of large amounts of data for many difficult types of computing applications.
Beowulf Clusters use many separate compute nodes to create a tightly coupled parallel HPCC system. The ability for a Beowulf Cluster HPCC system to process data depends on the ability of the compute nodes within the HPCC system to be able to retrieve data, share data, and store data with as little delay as possible. With many compute nodes competing to exchange data over limited network connections, network
congestion can occur that can negatively impact the speed of computations.
With concerns about network performance optimization, and uneven distribution of computational capacity, it is important for Beowulf HPCC System Administrators to be able to evaluate real-time data transfer metrics for
congestion within a particular HPCC system. In this thesis, Heat-Maps will be created to identify potential issues with Infiniband network
congestion due to simultaneous data exchanges between compute nodes.
Advisors/Committee Members: Ronald A. Marsh.
Subjects/Keywords: Beowulf Cluster; Congestion; HPC; Infiniband; Monitoring; Network
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APA ·
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Export
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Manager
APA (6th Edition):
Aguilar, M. J. (2015). Identifying Data Exchange Congestion Through Real-Time Monitoring Of Beowulf Cluster Infiniband Networks. (Masters Thesis). University of North Dakota. Retrieved from https://commons.und.edu/theses/1858
Chicago Manual of Style (16th Edition):
Aguilar, Michael James. “Identifying Data Exchange Congestion Through Real-Time Monitoring Of Beowulf Cluster Infiniband Networks.” 2015. Masters Thesis, University of North Dakota. Accessed March 04, 2021.
https://commons.und.edu/theses/1858.
MLA Handbook (7th Edition):
Aguilar, Michael James. “Identifying Data Exchange Congestion Through Real-Time Monitoring Of Beowulf Cluster Infiniband Networks.” 2015. Web. 04 Mar 2021.
Vancouver:
Aguilar MJ. Identifying Data Exchange Congestion Through Real-Time Monitoring Of Beowulf Cluster Infiniband Networks. [Internet] [Masters thesis]. University of North Dakota; 2015. [cited 2021 Mar 04].
Available from: https://commons.und.edu/theses/1858.
Council of Science Editors:
Aguilar MJ. Identifying Data Exchange Congestion Through Real-Time Monitoring Of Beowulf Cluster Infiniband Networks. [Masters Thesis]. University of North Dakota; 2015. Available from: https://commons.und.edu/theses/1858
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Open Access Theses and Dissertations
