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The Effect of Channel Estimation Error on MIMO CDMA System

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3 Author(s)
Dong Liu ; Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun. ; Yong Mo ; Daoben Li

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.

Published in:

Communications and Networking in China, 2006. ChinaCom '06. First International Conference on

Date of Conference:

25-27 Oct. 2006