ChinaCom2008-Wireless Communications and Networking Symposium

Research Article

Adaptive Scheduling for Unitary Precoded Multiuser MIMO Transmission with Limited Feedback

Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.1109/CHINACOM.2008.4685213,
    author={Erlin Zeng and Shihua Zhu and Zhenzhen Gao and Ming Xu},
    title={Adaptive Scheduling for Unitary Precoded Multiuser MIMO Transmission with Limited Feedback},
    proceedings={ChinaCom2008-Wireless Communications and Networking Symposium},
    publisher={IEEE},
    proceedings_a={CHINACOM2008-WCN},
    year={2008},
    month={11},
    keywords={},
    doi={10.1109/CHINACOM.2008.4685213}
}
  • Erlin Zeng
    Shihua Zhu
    Zhenzhen Gao
    Ming Xu
    Year: 2008
    Adaptive Scheduling for Unitary Precoded Multiuser MIMO Transmission with Limited Feedback
    CHINACOM2008-WCN
    IEEE
    DOI: 10.1109/CHINACOM.2008.4685213
Erlin Zeng1,*, Shihua Zhu1, Zhenzhen Gao1, Ming Xu2
  • 1: Department of Information and Communication Engineering Xi’an Jiaotong University, P.R. China
  • 2: Panasonic R&D Center China Co., Ltd. Beijing, P.R. China
*Contact email: elzeng@mailst.xjtu.edu.cn

Abstract

In this paper, we propose an adaptive scheduling method for unitary precoded downlink multiuser MIMO transmission based upon limited feedback. To alleviate the conflict between the scheduling gain and the quantization precision, the proposed method allocates a set of weights to each of the matrices within the codebook. These weights are selected adaptively according to the number of active users and the codebook size, and used by all users when quantizing their channel vectors, based on which the base station schedules the multiuser transmission. It is verified by simulations that the proposed method outperforms the conventional method when the codebook size is moderate or large.

Published
2008-11-21
Publisher
IEEE
Modified
2010-05-16
http://dx.doi.org/10.1109/CHINACOM.2008.4685213
Copyright © 2008–2024 ACM