BIT ERROR RATE OF TWO-USER COOPERATIVE DIVERSITY IN FREQUENCY SELECTIVE RAYLEIGH FADING CHANNEL

Chirawat Kotchasarn - Kazi M. Ahmed - R. M. A. Premanandana-Rajatheva

   This paper presents the analysis of cooperative diversity performance over the uplink frequency selective Rayleigh fading channel. The time division multiple access (TDMA) scheme and the half-duplex mode of transmission are assumed. The network architecture is defined as symmetrical structure. We analyze the bit error rate of BPSK two-user cooperative diversity with amplify-and-forward, decode-and-forward, selection relaying, and incremental relaying protocols and investigated the effects of various interuser SNRs on the performance. The result shows that the higher interuser SNRs, the better bit error rate performance. From the bit error rate performance comparison of all relaying protocols illustrates that the incremental relaying protocol give the best performance. This is the result of limited feedback in the incremental relaying protocol from the destination yield a great improvement on the system performance.

Keywords: feed-forward neural networks, finite elements computation, large-scale problems, wavelet transforms

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