Research on the Pre-coding Technology of Broadcast Stage in Multi-user MIMO System

Guoqiang Wang; Shangfu Li

Research Article

Research on the Pre-coding Technology of Broadcast Stage in Multi-user MIMO System

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@ARTICLE{10.4108/eai.8-12-2017.153461,
    author={Guoqiang Wang and Shangfu Li},
    title={Research on the Pre-coding Technology of Broadcast Stage in Multi-user MIMO System},
    journal={EAI Endorsed Transactions on Ambient Systems},
    volume={4},
    number={15},
    publisher={EAI},
    journal_a={AMSYS},
    year={2017},
    month={12},
    keywords={Multi-user, MIMO system, precoding, block diagonalization.},
    doi={10.4108/eai.8-12-2017.153461}
}

Guoqiang Wang
Shangfu Li
Year: 2017
Research on the Pre-coding Technology of Broadcast Stage in Multi-user MIMO System
AMSYS
EAI
DOI: 10.4108/eai.8-12-2017.153461

Guoqiang Wang¹^,*, Shangfu Li¹

1: Key Lab of Electronic and Communication Engineering, Heilongjiang University, Harbin, P. R. China

*Contact email: 13936697869@163.com

Abstract

For the poor transmission reliability of data, this paper focuses on the precoding techniques of the multi-user MIMO system in the broadcast phase in, and the single-user MIMO and multi-user MIMO precoding techniques have been studied. In the multi-user MIMO system, BD-MMSE-VP coding algorithm is proposed to improve the BER performance of the system by using the MMSE criterion to optimize the perturbation vector, and the system uses QR technique to decompose BD channel matrix. Simulation results verify the effective of the proposed precoding algorithm.

Keywords: Multi-user, MIMO system, precoding, block diagonalization.

Received: 2017-08-12
Accepted: 2017-12-02
Published: 2017-12-08
Publisher: EAI

: http://dx.doi.org/10.4108/eai.8-12-2017.153461

Copyright © 2017 Guoqiang Wang et al., licensed to EAI. This is an open access article distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.