Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2004, Vol. 27 ›› Issue (3): 93-97.

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Analysis of Multi-Hop Cooperative Diversity Systems \=over Rayleigh Fading Channel

CHENG Wei-jun, LI Yu-hong, HU Jian-dong   

  1. Telecommunication Engineering School, Beijing University of Posts andTelecommunications, Beijing 100876, China
  • Received:2003-04-11 Online:2004-03-28

Abstract: Two models of cooperative diversity system composed of many users were studied based on multi-hop relaying concept, one of which was multi-hop system and the other was multi-route diversity system. Expressions for outage probability and average bit error rate (BER) of decoded relaying and amplified relaying systems were derived over Rayleigh fading channel, respectively. Numerical analysis shows the multi-hop diversity system is degraded as the number of hops increases, and simulation verifies that. On the other hand, the multi-route diversity system gets improved with the increasing of numbers of route. As a conclusion, the performance of decoded relaying is better than that of amplified relaying at lower average signal noise ratio (SNR). But at higher average SNR, there exists little difference between the two.

Key words: user cooperative diversity, multi-hop diversity, multi-route diversity

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