Optimal BD-ZF precoder for multi-user MIMO downlink transmission

Rugui Yao; Huani Nan; Juan Xu; Geng Li

doi:10.1049/el.2015.0517

Optimal BD-ZF precoder for multi-user MIMO downlink transmission

Rugui Yao, Huani Nan, Juan Xu, Geng Li

School of Electronics and Information

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

2 Scopus citations

Abstract

For multi-user MIMO downlink transmission, a block-diagonal zeroforcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal BD-ZF precoder is developed to maximise throughput using the determinant maximisation technique. It helps to gather all gain for the transmission of each user. Numerical results validate that the precoder obtains throughput improvement.

Original language	English
Pages (from-to)	1121-1123
Number of pages	3
Journal	Electronics Letters
Volume	51
Issue number	14
DOIs	https://doi.org/10.1049/el.2015.0517
State	Published - 9 Jul 2015

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10.1049/el.2015.0517

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title = "Optimal BD-ZF precoder for multi-user MIMO downlink transmission",

abstract = "For multi-user MIMO downlink transmission, a block-diagonal zeroforcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal BD-ZF precoder is developed to maximise throughput using the determinant maximisation technique. It helps to gather all gain for the transmission of each user. Numerical results validate that the precoder obtains throughput improvement.",

author = "Rugui Yao and Huani Nan and Juan Xu and Geng Li",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering and Technology 2015.",

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AU - Nan, Huani

AU - Xu, Juan

AU - Li, Geng

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AB - For multi-user MIMO downlink transmission, a block-diagonal zeroforcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal BD-ZF precoder is developed to maximise throughput using the determinant maximisation technique. It helps to gather all gain for the transmission of each user. Numerical results validate that the precoder obtains throughput improvement.

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Optimal BD-ZF precoder for multi-user MIMO downlink transmission

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