DMCA
Diversity Analysis of Distributed Space-Time Codes in Relay Networks with Multiple Transmit/Receive Antennas (2008)
| Citations: | 17 - 7 self |
BibTeX
@MISC{Jing08diversityanalysis,
author = {Yindi Jing and Babak Hassibi},
title = { Diversity Analysis of Distributed Space-Time Codes in Relay Networks with Multiple Transmit/Receive Antennas},
year = {2008}
}
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Abstract
The idea of space-time coding devised for multiple-antenna systems is applied to the problem of communication over a wireless relay network, a strategy called distributed space-time coding, to achieve the cooperative diversity provided by antennas of the relay nodes. In this paper, we extend the idea of distributed space-time coding to wireless relay networks with multiple-antenna nodes and fading channels. We show that for a wireless relay network with M antennas at the transmit node, N antennas at the receive node, and a total of R antennas at all the relay nodes, provided that the coherence interval is long enough, the high SNR pairwise error probability (PEP) behaves as (1/P) min {M,N}R if M /=N and (log 1/M P/P) MR if M = N, where P is the total power consumed by the network. Therefore, for the case of M /=N, distributed space-time coding achieves the maximal diversity. For the case of M = N, the penalty is a factor of log 1/M P which, compared to P, becomes negligible when P is very high.
Keyphrases
relay network space-time coding multiple transmit receive antenna distributed space-time code diversity analysis relay node wireless relay network fading channel receive node cooperative diversity coherence interval total power maximal diversity distributed space-time coding transmit node multiple-antenna node high snr pairwise error probability multiple-antenna system
