Title :
Diversity-Fidelity Tradeoff in transmission of analog sources over MIMO fading channels
Author :
Taherzadeh, Mahmoud ; Moshksar, Kamyar ; Khandani, Amir K.
Author_Institution :
Dept. of Elec. & Comp. Eng., Univ. of Waterloo, Waterloo, ON
Abstract :
In this paper, the theoretical limits on the asymptotic performance of joint source-channel coding over MIMO fading channels are investigated. Similar to the concept of diversity-multiplexing tradeoff (DMT) in digital MIMO systems, a new measure for the asymptotic high-SNR performance of MIMO source-channel codes is introduced, which is called diversity-fidelity tradeoff, and the optimal tradeoff is characterized. Also, the problem of constructing robust MIMO source-channel codes, which are not sensitive to the knowledge of the SNR, is investigated and a semi-robust scheme is proposed.
Keywords :
MIMO systems; combined source-channel coding; diversity reception; fading channels; multiplexing; MIMO fading channels; MIMO source-channel codes; analog sources; asymptotic performance; digital MIMO systems; diversity-fidelity tradeoff; diversity-multiplexing tradeoff; joint source-channel coding; Delay; Digital-analog conversion; Distortion measurement; Fading; Gaussian channels; Laboratories; MIMO; OFDM modulation; Robustness; Wireless LAN;
Conference_Titel :
Signals, Systems and Computers, 2008 42nd Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2940-0
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2008.5074794
