频率复用DS/CDMA系统中自适应盲多用户检测的一种方法

A SCHEME FOR ADAPTIVE BLIND MULTIUSER DETECTION IN DS/CDMA OVERLAY SYSTEM

该文给出一种工作于强窄带干扰(NBI)多径衰落信道中DS/CDMA系统盲多用户检测接收机模型。它具有RAKE接收机的基本结构,在每一条并行支路中利用MMSE准则跟踪各路径信号。因此具有抗多径衰落,同时抑制NBI和多址接入干扰(MAI)的能力。模拟结果证明,它的性能优于未考虑NBI抑制的多用户检测接收机。

In this paper, the blind multiuser detector operating over multipath fading channel with high-power Narrow Bandwidth Interference (NBI) is presented. It has the basic structure of RAKE receiver in which every path signal could be traced by MMSE optimization strategy, therefore it can suppress the NBI and Multi-Access Interference (MAI) over multipath fading channel. It has been proved by the simulation results that the performance of the detector is superior to those without considering NBI suppression.