Distortion Exponent in MIMO Channels with Feedback

被引：0
|
作者：
Guenduez, Deniz [1 ]
Goldsmith, Andrea [2 ]
Poor, H. Vincent [2 ]
机构：
[1] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA
[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
来源：
2009 IEEE INFORMATION THEORY WORKSHOP (ITW 2009) | 2009年
关键词：
SNR EXPONENT; JOINT SOURCE; DIVERSITY; TRADEOFF; TRANSMISSION; BROADCAST;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The transmission of a Gaussian source over a block-fading multiple antenna channel in the presence of a feedback link is considered. The feedback link is assumed to be an error and delay free link of capacity 1 bit per channel use. Under the short-term power constraint, the optimal exponential behavior of the end-to-end average distortion is characterized for all source-channel bandwidth ratios. It is shown that the optimal transmission strategy is successive refinement source coding followed by progressive transmission over the channel, in which the channel block is allocated dynamically among the layers based on the channel state using the feedback link as an instantaneous automatic repeat request (ARQ) signal.
引用
收藏
页码：293 / 297
页数：5
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