Robust Tomlinson-Harashima Precoding for Two-Way Relaying
Signal Processing
2018-01-08 v1
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.
Keywords
Cite
@article{arxiv.1801.01156,
title = {Robust Tomlinson-Harashima Precoding for Two-Way Relaying},
author = {S. Mohammadkhani and A. H. Jafari and G. K. Karagiannidis},
journal= {arXiv preprint arXiv:1801.01156},
year = {2018}
}
Comments
15 pages, 3 figures