A reduced complexity zero-forcing beamformer design for multiuser MIMO systems

Bin Li; Zhi Guo Feng; Hai Huyen Dam; Antonio Cantoni

doi:10.1007/s11590-017-1182-1

A reduced complexity zero-forcing beamformer design for multiuser MIMO systems

Bin Li, Zhi Guo Feng, Hai Huyen Dam, Antonio Cantoni

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Zero-forcing beamforming under per-antenna power constraints is considered for rural applications. By exploring the structures of a deterministic line-of-sight channel matrix, some properties are found for the optimal weighting matrix. Particularly, some constraints can be removed from the original formulation. With these properties, a reduced complexity zero-forcing beamformer design is proposed. Numerical examples under several different scenarios are provided.

Original language	English
Pages (from-to)	1373–1386
Number of pages	14
Journal	Optimization Letters
Volume	12
Issue number	6
DOIs	https://doi.org/10.1007/s11590-017-1182-1
Publication status	Published - 19 Aug 2018

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abstract = "Zero-forcing beamforming under per-antenna power constraints is considered for rural applications. By exploring the structures of a deterministic line-of-sight channel matrix, some properties are found for the optimal weighting matrix. Particularly, some constraints can be removed from the original formulation. With these properties, a reduced complexity zero-forcing beamformer design is proposed. Numerical examples under several different scenarios are provided.",

keywords = "Multiuser MIMO systems, Per-antenna power constraint (PAPC), Zero-forcing beamforming (ZFBF)",

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A reduced complexity zero-forcing beamformer design for multiuser MIMO systems

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