Open Access Theses and Dissertations

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You searched for subject:(MSD System). Showing records 1 – 2 of 2 total matches.

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Indian Institute of Science

1. Karthik, A. Fast, Scalable, Contention-Based Algorithms for Multi-Node Selection in OFDMA and Cooperative Wireless Systems.

Degree: PhD, Faculty of Engineering, 2018, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/3441 

Opportunistic selection algorithms have grown in importance as next generation wireless systems strive towards higher data rates and spectral efficiencies. For example, in orthogonal frequency division multiple access(OFDMA), the system bandwidth is divided into many sub channels. For each sub channel, the user with the highest channel gain is opportunistically assigned to it. .Likewise, in a multi-source, multi-destination (MSD) cooperative relay system, a relay node must be assigned for every source-destination (SD) pair. The assignment decisions are based on local channel knowledge and must be fast so as to maximize the time available for data transmission. We develop novel multiple access based splitting-based selection algorithms for OFDMA and MSD systems. These systems are unique in that the same user and relay can be the most suitable one for multiple sub channels and multiple SD pairs, respectively. For OFDMA systems, we propose an algorithm called Split Select that assigns for every sub channel the user with the highest channel gain over it. For MSD systems, we propose a contention-based en masse assignment (CBEA) algorithm that assigns to each SD pair a relay that is capable of aiding it. Both Split Select and CBEA are fast and scale well with the number of nodes. For example, Split Select requires just 2.2 slots, on average, to assign a sub channel to its best user even when there are an asymptotically large number of contending users. Likewise, CBEA often takes far less than one slot, on average, to assign a relay to each SD pair. Advisors/Committee Members: Mehta, Neelesh B (advisor).

Subjects/Keywords: Wireless Communication Systems; Orthogonal Frequency Division Multiple Access System; Multi-source Multi-destination Cooperative Relay System; Wireless Systems - Multi-Node Selection; Multiple Access Channel (MAC)-based Selection; Cooperative Wireless Systems - Contention-based Algorithms; Wireless Systems - Opportunistic Selection Algorithms; OFDMA Systems; MSD System; Communication Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Karthik, A. (2018). Fast, Scalable, Contention-Based Algorithms for Multi-Node Selection in OFDMA and Cooperative Wireless Systems. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/3441

Chicago Manual of Style (16th Edition):

Karthik, A. “Fast, Scalable, Contention-Based Algorithms for Multi-Node Selection in OFDMA and Cooperative Wireless Systems.” 2018. Doctoral Dissertation, Indian Institute of Science. Accessed January 26, 2021. http://etd.iisc.ac.in/handle/2005/3441.

MLA Handbook (7th Edition):

Karthik, A. “Fast, Scalable, Contention-Based Algorithms for Multi-Node Selection in OFDMA and Cooperative Wireless Systems.” 2018. Web. 26 Jan 2021.

Vancouver:

Karthik A. Fast, Scalable, Contention-Based Algorithms for Multi-Node Selection in OFDMA and Cooperative Wireless Systems. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2018. [cited 2021 Jan 26]. Available from: http://etd.iisc.ac.in/handle/2005/3441.

Council of Science Editors:

Karthik A. Fast, Scalable, Contention-Based Algorithms for Multi-Node Selection in OFDMA and Cooperative Wireless Systems. [Doctoral Dissertation]. Indian Institute of Science; 2018. Available from: http://etd.iisc.ac.in/handle/2005/3441

2. Stenbrunn, Alf. Hosting a building management system on a smart network camera: On the development of an IoT system.

Degree: 2015, , Faculty of Technology and Society (TS)

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20517 

The Internet of Things (IoT) is an umbrella term for smart things connected to the Internet. Connected sensors may be used to the benefit of smart building management systems. This thesis describes the development of a sensor based building management system prototype, lightweight enough to run on a single network camera. The focus of the research was investigating if the system prototype was scalable, and capable of storing and analyzing data gathered from a large amount of sensors relevant to the field of building management. The prototype was developed through a five-stage systems development process, and evaluated using simulations and case studies. The finished prototype was able to gather and store data from a few hundred real-time sensors using limited hardware. Tests showed that the network camera should be capable of managing at least 100 sensors. The system itself is scalable with the use of more powerful hardware. However, using a distributed architecture would be preferable if more sensors are required. This could be achieved by creating a distributed network of cameras, where each camera manages its own set of sensors. This could both increase scalability and make the system more robust and reliable.

Subjects/Keywords: Internet of Things; IoT; Sensors; Multiple Sensor Device; MSD; Network camera; Building management; Distributed systems; Sensor; Building Management System; Byggnadsstyrsystem; Nätverkskamera; Sensor network; Wireless Sensor Network; WSN; Sensornätverk; Trådlöst sensornätverk; Distribuerade system; Sakernas internet; Fastighetsautomation; Engineering and Technology; Teknik och teknologier

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Stenbrunn, A. (2015). Hosting a building management system on a smart network camera: On the development of an IoT system. (Thesis). , Faculty of Technology and Society (TS). Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20517

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):

Stenbrunn, Alf. “Hosting a building management system on a smart network camera: On the development of an IoT system.” 2015. Thesis, , Faculty of Technology and Society (TS). Accessed January 26, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20517.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Stenbrunn, Alf. “Hosting a building management system on a smart network camera: On the development of an IoT system.” 2015. Web. 26 Jan 2021.

Vancouver:

Stenbrunn A. Hosting a building management system on a smart network camera: On the development of an IoT system. [Internet] [Thesis]. , Faculty of Technology and Society (TS); 2015. [cited 2021 Jan 26]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20517.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Stenbrunn A. Hosting a building management system on a smart network camera: On the development of an IoT system. [Thesis]. , Faculty of Technology and Society (TS); 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20517

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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