ChinaCom2008-Wireless Communications and Networking Symposium

Research Article

On the size of antenna cluster in multi-user distributed antenna systems

  • @INPROCEEDINGS{10.1109/CHINACOM.2008.4685218,
        author={Wei Feng and Yunzhou Li and Jiansong Gan and Shidong Zhou and Jing Wang and Minghua Xia},
        title={On the size of antenna cluster in multi-user distributed antenna systems},
        proceedings={ChinaCom2008-Wireless Communications and Networking Symposium},
        publisher={IEEE},
        proceedings_a={CHINACOM2008-WCN},
        year={2008},
        month={11},
        keywords={Distributed antenna systems (DAS) antenna cluster size mean square access distance (MSAD).},
        doi={10.1109/CHINACOM.2008.4685218}
    }
    
  • Wei Feng
    Yunzhou Li
    Jiansong Gan
    Shidong Zhou
    Jing Wang
    Minghua Xia
    Year: 2008
    On the size of antenna cluster in multi-user distributed antenna systems
    CHINACOM2008-WCN
    IEEE
    DOI: 10.1109/CHINACOM.2008.4685218
Wei Feng1,*, Yunzhou Li1,*, Jiansong Gan1,*, Shidong Zhou1,*, Jing Wang1,*, Minghua Xia2,*
  • 1: State Key Laboratory on Microwave and Digital Communications Tsinghua National Laboratory for Information Science and Technology Department of Electronic Engineering, Tsinghua University, Beijing 100084, P. R. China
  • 2: ETRI Beijing R&D Center, Beijing 100027, P. R. China
*Contact email: fengw@mails.tsinghua.edu.cn, liyunzhou@tsinghua.edu.cn, ganjs@mails.tsinghua.edu.cn, zhousd@mail.tsinghua.edu.cn, wangj@tsinghua.edu.cn, xia_minghua@yahoo.com.cn

Abstract

In this paper, multi-user distributed antenna systems (DAS) with antennas deployed in clusters are studied. In order to investigate the impact of the size of antenna cluster on the system performance, the mean square access distance (MSAD), which is a function of the size of antenna cluster, is defined as a metric of the system performance. From the analysis of the asymptotic behavior of the metric, we obtain the approximate closed-form expressions for the expectation and relative variance of the MSAD. Accordingly, we find out the semiquantitative relationship between the size of antenna cluster and the system performance. Moreover, the benefits of the DAS under different cluster size are discussed. The validity of our analysis is well verified by simulations.