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Tomlinson Harashima precoding design for non-regenerative MIMO relay networks

Millar, Andrew Paul and Weiss, Stephan and Stewart, Robert (2011) Tomlinson Harashima precoding design for non-regenerative MIMO relay networks. In: IEEE 73th Vehicular Technology Conference, 2011-05-15 - 2011-05-18.

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In this paper we consider the design of minimum mean square error (MMSE) transceivers for non-regenerative multiple input multiple output (MIMO) relay systems. Our design utilises Tomlinson Harashima precoding (THP) at the source along with linear processors in each stage of the network. Assuming full channel state information (CSI) is available at each node in the network the various processors are jointly optimised to minimise the system arithmetic mean square error (MSE) whilst abiding by average power constraints at both the source and relay terminals in the network. Simulations show that the proposed schemes outperform existing methods in terms of bit error ratio (BER).