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Research Journal of Information Technology
  Year: 2009 | Volume: 1 | Issue: 1 | Page No.: 41-50
 
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Opportunistic Distributed Space-Time Coding with Semi-Distributed Relay-Selection Method

P. Zhang, F. Wang, Z. Xu, S. Diouba and L. Tu

Abstract:
Cooperative diversity has been recently proposed as a way to form virtual antenna arrays that provide dramatic gains in slow fading wireless environments. Opportunistic Relaying (OR) and Distributed Space-Time Coding (DSTC) are two attractive cooperative diversity schemes. In this study, we introduce a new cooperative scheme: Opportunistic Distributed Space-Time Coding (ODSTC). In ODSTC scheme, more than one relays with best channel conditions are selected. It can achieve a good tradeoff between performance and complexity. We also propose a criterion to select between DSTC scheme and ODSTC scheme. Further, a semi-distributed relay-selection method is given, which can select more than one best relays without topology information.
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How to cite this article:

P. Zhang, F. Wang, Z. Xu, S. Diouba and L. Tu, 2009. Opportunistic Distributed Space-Time Coding with Semi-Distributed Relay-Selection Method. Research Journal of Information Technology, 1: 41-50.

URL: https://scialert.net/abstract/?doi=rjit.2009.41.50

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