Performance Comparison of Non-linear Precoding Schemes for Multi-user MIMO Broadcast Channels

被引：0

作者：

Chen, Rui ^{[1
]}

Zhou, Hong ^{[1
]}

Moretti, Marco ^{[2
]}

机构：

[1] Xidian Univ, State Key Lab ISN, Xian, Peoples R China

[2] Univ Pisa, Dipartimento Ingn Informaz, Pisa, Italy

来源：

2019 IEEE 90TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2019-FALL) | 2019年

关键词：

Multiuser MIMO; block diagonalization; vector perturbation; Tomlinson-Harashima precoding; successive optimization; VECTOR-PERTURBATION; COMMUNICATION; ALLOCATION; DOWNLINK;

D O I：

10.1109/vtcfall.2019.8891247

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Combined with block diagonalization (BD) methods, Tomlinson-Harashima (TH) precoding and vector perturbation (VP) are attractive non-linear precoding techniques for multi-user multiple-input multiple-output (MU-MIMO) broadcast channels. In this paper, we first briefly review several nonlinear precoding schemes including BD-VP, TH and zero-forcing (TH-ZF) and TH-VP, and then derive the achievable sum rate of the hybrid TH-VP precoding. After that, we compare the achievable sum rates and diversity gains of these non-linear precoding schemes with zero-forcing VP (ZF-VP) and dirty paper coding (DPC). The achievable sum rate of TH-VP is shown to approach the sum capacity of DPC asymptotically and outperforms BD-VP, TH-ZF and ZF-VP.

引用

页数：6

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