Channel state feedback over the MIMO-MAC

Authors:
K. Raj Kumar;Giuseppe Caire
Affiliations:
Department of Electrical Engineering, Univ. of Southern California, Los Angeles;Department of Electrical Engineering, Univ. of Southern California, Los Angeles
Venue:
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Year:
2009

Citing 8
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Abstract

We consider the problem of designing low latency and low complexity schemes for channel state feedback over the MIMO-MAC (multiple-input multiple-output multiple access channel). We develop a framework for analyzing this problem in terms of minimizing the distortion, and come up with separated source-channel schemes and joint source-channel schemes that perform better than traditional analog feedback. The results are validated through simulations using very simple channel codes.