Diversity gains of power control with noisy CSIT in MIMO channels
IEEE Transactions on Information Theory
Coded modulation with mismatched power control over block-fading channels
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Impact of CSIT on the tradeoff of diversity and spatial multiplexing in MIMO channels
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 2
On the diversity gain of AF and DF relaying with noisy CSI at the source transmitter
IEEE Transactions on Information Theory
On the diversity gain in cooperative relaying channels with imperfect CSIT
IEEE Transactions on Communications
Coded modulation with mismatched CSIT over MIMO block-fading channels
IEEE Transactions on Information Theory
Outage behavior of slow fading channels with power control using partial and erroneous CSIT
IEEE Transactions on Information Theory
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In this paper, we analyze the role of CSIT on the fundamental performance tradeoff for a MISO/SIMO link. Defining CSIT quality order as alpha = - log sigma2 Deltah / log SNR, we showed that using rate adaptation, one can achieve an average diversity order of d macr(alpha, r macr) = (1 + alpha - r macr)n where n is the number of transmit or receive antennas, r macr is the average multiplexing gain and alpha is the CSIT quality. We also showed that this diversity order is optimal for r macr isin [0.1 - alpha] and alpha < 1. The relationship suggests that imperfect CSIT can also provide additional diversity order and interpret the CSIT quality order as the maximum achievable spatial multiplexing gain with n diversity order.