The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Performance Analysis of Dual-Hop Cooperative Transmission with Best Relay Selection in a Rayleigh Fading Channel

  • Nessa, Ahasanun (Graduate School of Information Technology and Telecommunications, Inha University) ;
  • Lee, Woo-Yong (Electronics and Telecommunications Research Institute) ;
  • Kim, Yong-Sun (Electronics and Telecommunications Research Institute) ;
  • Kwak, Kyung-Sup (Graduate School of Information Technology and Telecommunications, Inha University)
  • Published : 2009.07.31
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Abstract

Wireless Relaying is a promising solutions to overcome the channel impairments and provides high data rate coverage that appear for beyond 3G mobile communications. In this paper we present end to end BER performance of dual hop wireless communication systems equipped with multiple Decode and Forward relays over Rayleigh fading channel with the best relay selection. We compare the BER performance of the best relay with the BER performance of single relay. We select the best relay based on the end to end channel conditions. We further calculate the outage probability of the best relay. It is shown that the outage probability of the best relay is equivalent to the outage probability when all relays take part in the transmission. We apply Orthogonal Space Time Block coding(OSTBC) at the source terminal. Numerical and simulation results are presented to verify our analysis.

Keywords

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