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Full-duplex multiple relays: A high data rate cooperative communications over rayleigh fading channels

In this paper, we present a cooperative network with multi-node amplify-and-forward (AF) full-duplex relays (FDRs). In particular, we propose a new concept of transmission protocol to achieve the spatial diversity in a distributed fashion. Firstly, we propose delayed FDRs equipped with two transmit and receive antennas. Each relay delays a received signal, and transmits the delayed signal to the destination. Delayed FDR also receives signals from source, adjacent relays and the loop-back interference signal from its transmit antenna when loop-back channel impulse response is not accurate. Then, we analyze the pairwise-error-probability (PEP) analysis, especially in terms of signal-to-noise ratios (SNRs) between the source to relays and the source to destination links. Finally, we accomplish bit-error-rate (BER) the performance evaluations of the proposed system.