Özet:

We address diversity analysis of a two-way Adaptive Demodulate-and-Forward (ADmF) relaying over Rayleigh fading channels. The considered scheme consists of two sources and two relays. Each relay decides to cooperate or not according to the link quality (source-relay link) in terms of Signal-to-Noise-Ratio (SNR). Cooperation is performed by demodulating and forwarding the combined signal to the sources, which apply the Maximum Ratio Combining (MRC) algorithm to combine the so received signals. In this work, the end-to-end Binary Error Probability (BEP) is considered as performance criterion. First, we derive closed-form expressions of the probability density function (PDF) at the sources. Then, closed-form expressions of the BEP are deduced in the case of Quadrature Phase Shift

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