有信道估计误差时MC-CDMA系统PIC检测性能分析

Analysis on the Performance of Parallel Interference Cancellation Detection for MC-CDMA System with Channel Estimation Error

分析了有信道估计误差的情况下,MC-CDMA系统下行链路PIC多用户检测的性能,推导出了系统误差码率表达式,通过和无估计误差时系统的误码率公式对照,表明信道估计误差降低了系统性能,提出并验证了一种有效的对抗信道估计误差的方法。

This paper analyzes on the performance of Parallel Interference Cancellation （ PIC ） multi-user detection for downlink MC-CDMA system in the presence of channel estimation error, derives in detail the system bit error rate expression formula, and in contrast with the BER formula without channel estimation error, illustrates that channel estimation error reduces the system performance, and puts forward an effective method which can combat the channel estimation error.