摘要
提出了一种线性的多级多用户检测方案，并给出了其理论上的误码率性能。当用户间的相关系数较小时，它可以相当准确地逼近解相关检测器；与传统的相关检测器比，不仅其误码率性能有大幅度的提高，而且具有很好的抗远近性能；与解相关检测器相比，它的复杂度大大降低了，使其有可能用于实际的ＣＤＭＡ通信系统中．数值结果证实该方案的有效性．
We propose a linear multistage multi user detection scheme. The bit error rate(BER) performance of this detector is analyzed. This detector is fairly approximate to the decorrelating detector when the cross correlation of spreading sequences is low. It outperforms the conventional detector in terms of BER performance and has fairly good near far resistance. Moreover, its complexity is much lower than that of the decorrelating detector, which makes it possible for implementation in practical CDMA communication systems. The numerical results show that this detector is effective.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
1998年第6期11-16,共6页
Journal of Southeast University：Natural Science Edition
基金
国家高科技863项目资助
