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arXiv · 1801.01156

Robust Tomlinson-Harashima Precoding for Two-Way Relaying

S. Mohammadkhani·A. H. Jafari·G. K. Karagiannidis
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Abstract

Most of the non-linear transceivers, which are based on Tomlinson Harashima (TH) precoding and have been proposed in the literature for two-way relay networks, assume perfect channel state information (CSI). In this paper, we propose a novel and robust TH precoding scheme for two-way relay networks with multiple antennas at the transceiver and the relay nodes. We assume imperfect CSI and that the channel uncertainty is bounded by a spherical region. Furthermore, we consider the sum of the mean square error as the objective function, under a limited power constraint for transceiver and relay nodes. Simulations are provided to evaluate the performance and to validate the efficiency of the proposed scheme.

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S. Mohammadkhani, A. H. Jafari, G. K. Karagiannidis. 2018-01-03. Robust Tomlinson-Harashima Precoding for Two-Way Relaying. https://arxiv.org/abs/1801.01156

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