Abstract
In this letter, we consider a full-duplex (FD) relay communication network on flat fading Rayleigh channels, where the relay is allowed to receive and transmit at the same time and over the same frequency band. Based on single carrier frequency domain equalization, we propose an amplify-and-forward protocol FD relaying scheme, which is robust to the residual loop interference. In this scheme, the relay only needs to amplify and forward the received signal by controlling the amplifying factor and as a result the processing at the relay is simple. The amplifying factor is optimized in terms of system parameters such as the length of cyclic prefix, noise power, and estimated channel state information. Simulation results are presented to evaluate the performance of the proposed scheme and verify the theoretical analysis.
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