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
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.
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