Performance Analysis of Space-Time and Amplify-and-Forward Cooperative System

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In this paper, we consider a space-time and amplify-and-forward(ST-AF) cooperative system which consists of two-antenna source, single-antenna relay and destination. Source transmits Alamouti space-time coding symbols to destination with cooperation of relay which adopts AF strategy. Closed-form symbol error rate(SER) is derived for the ST-AF system with PSK signals. Moreover, an SER approximation are developed to show the asymptotic performance of the ST-AF cooperative system in medium and high SNR regimes. For comparison, the SER approximation of another cooperative space-time coding(C-STC) scheme is also derived. Theoretical analysis shows that the ST-AF can obtain more diversity gain and achieve higher diversity order than C-STC. Finally, computer simulations validate the theoretical analysis.

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Edited by:

Helen Zhang and David Jin

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578-583

Citation:

K. Y. Zhu et al., "Performance Analysis of Space-Time and Amplify-and-Forward Cooperative System", Advanced Materials Research, Vol. 485, pp. 578-583, 2012

Online since:

February 2012

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$38.00

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