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In this paper, we propose a low complexity lattice reduction aided (LRA) minimum mean square error (MMSE) precoding design for multiple input multiple output (MIMO) systems. We exploit the extended channel to implement the MMSE approach and obtain an optimal tradeoff between noise amplification and residual interference. Three schemes with linear and nonlinear processing are provided based on the...
In this paper, a lattice-reduction-aided (LRA) minimum mean square error (MMSE) vector precoding (VP) is proposed for multiple input multiple output (MIMO) systems. Three schemes are provided for the perturbation vector design by Babai's approximation procedures based on lattice reduction method to reduce the complexity. Performance and complexity analysis are provided. Simulation results show that...
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