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Diversity Analysis of Distributed Space-Time Codes in Relay Networks with Multiple Transmit/Receive Antennas

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 antennas at the transmit node, antennas at the receive node, and a total of antennas at all the relay nodes, provided that the coherence interval is long enough, the high SNR pairwise error probability (PEP) behaves as if and if , where is the total power consumed by the network. Therefore, for the case of , distributed space-time coding achieves the maximal diversity. For the case of , the penalty is a factor of which, compared to , becomes negligible when is very high.

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Correspondence to Yindi Jing.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Jing, Y., Hassibi, B. Diversity Analysis of Distributed Space-Time Codes in Relay Networks with Multiple Transmit/Receive Antennas. EURASIP J. Adv. Signal Process. 2008, 254573 (2007). https://doi.org/10.1155/2008/254573

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Keywords

  • Information Technology
  • Diversity Analysis
  • Quantum Information
  • Full Article
  • Relay Network