1st International ICST Conference on Communications and Networking in China

Research Article

The Effect of Channel Estimation Error on MIMO CDMA System

  • @INPROCEEDINGS{10.1109/CHINACOM.2006.344743,
        author={Dong   Liu and Yong Mo and Daoben  Li},
        title={The Effect of Channel Estimation Error on MIMO CDMA System},
        proceedings={1st International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2007},
        month={4},
        keywords={channel estimation error; multi-codes detection; LS codes},
        doi={10.1109/CHINACOM.2006.344743}
    }
    
  • Dong Liu
    Yong Mo
    Daoben Li
    Year: 2007
    The Effect of Channel Estimation Error on MIMO CDMA System
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2006.344743
Dong Liu1,2,*, Yong Mo1,2, Daoben Li1,2
  • 1: Information Engineering school, Beijing University of Posts and Telecommunications,
  • 2: Beijing, 100876, China
*Contact email: followbird@gmail.com

Abstract

Based on the LS codes, MCD (multi-code detection) and MLD (maximum likelihood detection) receiver, the paper analyses the effect of channel estimation error on MIMO CDMA system in Rayleigh fading channel. Both analysis and results show that channel capacity decreases quickly when the channel estimation error increasing. When the channel estimation error is smaller than one percent, the channel capacity is increasing with the antennas linearly. But the increasing rate of system capacity declines rapidly when the channel estimation error becomes larger. When it becomes ten percent, the system capacity will not increase nearly with the antenna number increasing.