Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

Sorted by: relevance · author · university · dateNew search

You searched for +publisher:"NSYSU" +contributor:("Tsung-Hsien Liu"). Showing records 1 – 2 of 2 total matches.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


NSYSU

1. Lu, Hung-Yi. On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems.

Degree: Master, Communications Engineering, 2006, NSYSU

In this thesis, the superimposed training scheme is applied to the orthogonal frequency division multiplexing (OFDM) systems. To optimize power amplifier efficiency, the optimal value of pilot power allocation is derived to maximize data power. Peak-to-average power ratio (PAPR) is one of the major drawbacks for OFDM systems. A large PAPR will push the power amplifier into the saturation area, leading to nonlinear distortion, and reduce power efficiency. By using the superimposed training schemes, the system can not only improve the bandwidth efficiency, but also reduce the PAPR. In this thesis, the relation between PAPR and power efficiency is analyzed. In addition, the close form formula is derived for determining the pilot power allocation so that data power is maximized. Advisors/Committee Members: Tsang-Yi Wang (chair), Tsung-Hsien Liu (chair), Chih-Peng Li (committee member), Yung-Fang Chen (chair), Der-Feng Tseng (chair).

Subjects/Keywords: OFDM; PAPR

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Lu, H. (2006). On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164713

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):

Lu, Hung-Yi. “On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems.” 2006. Thesis, NSYSU. Accessed July 23, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164713.

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

MLA Handbook (7th Edition):

Lu, Hung-Yi. “On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems.” 2006. Web. 23 Jul 2019.

Vancouver:

Lu H. On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems. [Internet] [Thesis]. NSYSU; 2006. [cited 2019 Jul 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164713.

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

Council of Science Editors:

Lu H. On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems. [Thesis]. NSYSU; 2006. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164713

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


NSYSU

2. Chou, Hsin-Heng. Investigations of Channel Estimation Using Kalman Filter for OFDM Systems in Time Varying Channel.

Degree: Master, Communications Engineering, 2006, NSYSU

In this thesis, a modified Kalman filter is proposed for time varying channel estimation in orthogonal frequency division multiplexing (OFDM). The proposed scheme adopts pre-coding scheme and minimum mean squared error (MMSE) equalizer to improve system performance. By using pre-coding schemes, information can be protected by signal diversities, which prevent Kalman filter to disperse due to erroneous data signals. In this investigation, the proposed system architecture is verified by using simulation experiments. Simulation results demonstrate that the proposed schemes substantially improve system performances under verious channel conditions. Advisors/Committee Members: Tsung-Hsien Liu (chair), Tsang-Yi Wang (chair), Chih-Peng Li (committee member), Der-Feng Tseng (chair), Yung-Fang Chen (chair).

Subjects/Keywords: Channel Estimation; OFDM; Kalman Filter

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Chou, H. (2006). Investigations of Channel Estimation Using Kalman Filter for OFDM Systems in Time Varying Channel. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164626

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):

Chou, Hsin-Heng. “Investigations of Channel Estimation Using Kalman Filter for OFDM Systems in Time Varying Channel.” 2006. Thesis, NSYSU. Accessed July 23, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164626.

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

MLA Handbook (7th Edition):

Chou, Hsin-Heng. “Investigations of Channel Estimation Using Kalman Filter for OFDM Systems in Time Varying Channel.” 2006. Web. 23 Jul 2019.

Vancouver:

Chou H. Investigations of Channel Estimation Using Kalman Filter for OFDM Systems in Time Varying Channel. [Internet] [Thesis]. NSYSU; 2006. [cited 2019 Jul 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164626.

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

Council of Science Editors:

Chou H. Investigations of Channel Estimation Using Kalman Filter for OFDM Systems in Time Varying Channel. [Thesis]. NSYSU; 2006. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0823106-164626

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

.