ChinaCom2009-Wireless Communications and Networking Symposium

Research Article

Low Complexity Multiuser Scheduling in MIMO Broadcast Channel with Channel Quantization

  • @INPROCEEDINGS{10.1109/CHINACOM.2009.5339720,
        author={Feng She and Hanwen Luo and Wen Chen},
        title={Low Complexity Multiuser Scheduling in MIMO Broadcast Channel with Channel Quantization},
        proceedings={ChinaCom2009-Wireless Communications and Networking Symposium},
        publisher={IEEE},
        proceedings_a={CHINACOM2009-WCN},
        year={2009},
        month={11},
        keywords={},
        doi={10.1109/CHINACOM.2009.5339720}
    }
    
  • Feng She
    Hanwen Luo
    Wen Chen
    Year: 2009
    Low Complexity Multiuser Scheduling in MIMO Broadcast Channel with Channel Quantization
    CHINACOM2009-WCN
    IEEE
    DOI: 10.1109/CHINACOM.2009.5339720
Feng She1,*, Hanwen Luo1, Wen Chen1,*
  • 1: Department of Electronic Engineering Shanghai Jiaotong University Shanghai 200030, P. R. China
*Contact email: shefeng630@sjtu.edu.cn, wenchen@sjtu.edu.cn

Abstract

This paper deals with the design and analysis of low complexity user scheduling algorithm in multiantenna broadcast (downlink) systems under zero-forcing multiplexing. By using quantization technology, the channel matrix can be divided into serval unoverlapped channel regions. Based on the quantized channel regions, we can get semi-orthogonal region sets. The presented user scheduling algorithm in this paper is based on using the semi-orthogonal region sets. Simulation results shows that this algorithm can achieve a sum rate close to the full searching algorithms while with much lower complexity than those of the previous algorithms.