In this paper, we investigate the problem of two-way relay beamforming optimization to maximize the achievable sum-rate of a simultaneous wireless information and power transfer (SWIPT) system with a full-duplex (FD) multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay. In particular, we address the optimal joint design of the receiver power splitting (PS) ratio and the beamforming matrix at the relay node given the channel state information (CSI). Our contribution is an iterative algorithm based on difference of convex (DC) programming and one-dimensional searching to achieve the joint optimal solution. Simulation results are provided to demonstrate the effectiveness of the proposed algorithm.
@article{arxiv.1606.08651,
title = {Two-way relay beamforming optimization for full-duplex SWIPT systems},
author = {Alexander A. Okandeji and Muhammad R. A. Khandaker and Kai-Kit Wong},
journal= {arXiv preprint arXiv:1606.08651},
year = {2017}
}
Comments
Invited paper presented in the European Signal Processing Conference (EUSIPCO 2016). arXiv admin note: text overlap with arXiv:1411.6021 by other authors