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Hybrid TH-VP Precoding for Multiuser MIMO

delete2017-12-01
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R
Rui Chen
M
Marco Moretti *
X
Xiaodong Wang
DOI:10.1109/TVT.2017.2725915delete
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摘要

摘要

En 中文
Vector perturbation (VP) is a nonlinear precoding technique that achieves near-capacity performance in multiuser multiple-input multiple-output systems at the expense of large complexity due to the search for the optimum perturbation vector. In this paper, we present the hybrid Tomlinson-Harashima VP (TH-VP) algorithm, a novel zero-forcing precoding scheme, which combines TH precoding to remove interuser interference, and VP precoding to equalize each user's multiple spatial streams. We show that the two nonlinear techniques can be integrated in a single optimization and that the proposed algorithm has lower computational requirements than any other. The performance of TH-VP is analyzed and simulation results show that TH-VP outperforms conventional zero-forcing VP and approaches the performance of dirty paper coding.
Keyword:
Multi-user MIMO
vector perturbation
tomlinson-Harashima precoding
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期刊

IEEE Transactions on Vehicular Technology 封面图
IEEE Transactions on Vehicular Technology
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7.1
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1.8W
被引数:
6.6W

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Columbia University
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Xidian University
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University of Pisa
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