A Precoding Scheme Based on SLNR for Downlink MU-MIMO Systems

Wei Zhang; Wenjie Wo; Jingjing Duan

Advanced Hybrid Information Processing. First International Conference, ADHIP 2017, Harbin, China, July 17–18, 2017, Proceedings

Research Article

A Precoding Scheme Based on SLNR for Downlink MU-MIMO Systems

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@INPROCEEDINGS{10.1007/978-3-319-73317-3_51,
    author={Wei Zhang and Wenjie Wo and Jingjing Duan},
    title={A Precoding Scheme Based on SLNR for Downlink MU-MIMO Systems},
    proceedings={Advanced Hybrid Information Processing. First International Conference, ADHIP 2017, Harbin, China, July 17--18, 2017, Proceedings},
    proceedings_a={ADHIP},
    year={2018},
    month={2},
    keywords={Downlink MU MIMO SLNR-based precoding ZF},
    doi={10.1007/978-3-319-73317-3_51}
}

Wei Zhang
Wenjie Wo
Jingjing Duan
Year: 2018
A Precoding Scheme Based on SLNR for Downlink MU-MIMO Systems
ADHIP
Springer
DOI: 10.1007/978-3-319-73317-3_51

Wei Zhang¹^,*, Wenjie Wo¹, Jingjing Duan¹

1: Harbin Engineering University

*Contact email: zhangwei@hrbeu.edu.cn

Abstract

The precoding scheme plays an important role in suppressing co-channel interference for downlink multi-user (MU) multiple-input-multiple-output (MIMO) communication systems. The effects of noise are not ignored in precoding scheme based on Signal-to-leakage-and-noise ratio (SLNR) and there are no limits on the number of transmit antennas. In this paper, a modified SLNR-based precoding scheme is presented, which can balance the channel gain for each stream per user by diagonalizating leakage-and-noise and the user’s channel matrices simultaneously. Simulation results show that better BER performance can be obtained by the proposed scheme as compared with zero-forcing (ZF) precoding and conventional SLNR solution.

Keywords: Downlink MU MIMO SLNR-based precoding ZF

Published: 2018-02-09
Appears in: SpringerLink

: http://dx.doi.org/10.1007/978-3-319-73317-3_51