Adaptive Digital Video transmission in MIMO Systems
| Autor: | Kuo-Hsiang Chen, 陳國祥 |
|---|---|
| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 Objective of this thesis is to investigate the joint source and channel coding algorithm with MIMO system providing a uniform video transmission rate to achieve better system performance with limited channel capacity. In the proposed algorithm, we have applied MPEG2 video source coding scheme with convolutional channel coding and space time block coding technique, combined with BPSK/QPSK modulation method, to improve video transmission performance. In a conventional communication system design, source coding and channel coding have been separately designed to achieve the best system performance. We have learned that the design concept mentioned above does not promise a better performance while simply connecting the best source coding scheme with the best channel coding scheme together. Consequently, this study employs joint source-channel coding scheme and MIMO concept to get the best performance in the system design over fading channel. The proposed algorithm assigned rates to MPEG2 source code and convolutional channel code, combined with space time block coding schemes based upon the feedback information from Performance Control Unit (PCU) as well as system channel capacity limitation, which ensures the given system can achieve the best performance compared to a conventional system. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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