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THP-UO Algorithm for Multi-User mmWave MIMO Systems

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Abstract

This paper presents an enhanced nonlinear hybrid Tomlinson-Harashima precoding method based on user ordering for millimeter wave (mmWave) massive multi-user mutiple-input multiple-out (MU-MIMO) systems, named as THP-UO algorithm. In the proposed method, making use of the fact that the performance of THP strongly depends on the ordering of precoding symbols, the enhanced THP solution is derived via the minimum mean square error (MMSE) criterion, which can obtain an optimal ordering of precoding symbols by rearranging the user ordering. Then, a digital precoding matrix can be given by THP method directly. It can further eliminate the influence of inter-user interference. Simulation results verify that the proposed hybrid THP-UO algorithm can reduce the bit error rate (BER) effectively, which is closer to the performance of the fully digital precoder than the previous algorithms.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China under Grant No.61971117, by the Natural Science Foundation of Hebei Province (Grant No. F2020501007).

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Author notes

  1. Fulai Liu and Dan Li have contributed equally to this study.

Authors and Affiliations

  1. Northeastern University at Qinhuangdao, Qinhuangdao, China

    Fulai Liu, Yanshuo Zhang, Dan Li & Ruiyan Du

  2. School of Computer Science and Engineering, Northeastern University, Shenyang, China

    Fulai Liu, Yanshuo Zhang, Dan Li & Ruiyan Du

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  1. Fulai Liu
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  2. Yanshuo Zhang
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  3. Dan Li
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  4. Ruiyan Du
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Correspondence to Fulai Liu or Dan Li.

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Liu, F., Zhang, Y., Li, D. et al. THP-UO Algorithm for Multi-User mmWave MIMO Systems. Wireless Pers Commun 119, 2055–2068 (2021). https://doi.org/10.1007/s11277-021-08317-2

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