摘要
本文研究了部分并行干扰对消(PPIC)多用户检测算法,提出了一种新的PPIC接收机实现结构,这种新的实现结构与经典的PPIC接收机实现结构相比,在不损失接收机抗多址干扰性能的前提下,硬件资源开销降低为经典实现结构的约四分之一,提高了对硬件资源的使用效率。在此新型接收机结构的基础上,设计并实现了PPIC多用户检测接收机,测试结果显示本文设计的PPIC接收机具有显著的抗多址干扰能力,实测多址干扰条件下的误码率性能和抗远近效应性能与计算机仿真结果具有较好的一致性。
In this paper, partial parallel interference cancellation multi-user detector is studied and a novel implementation structure of PPIC is proposed. The new implementation structure reduces the cost of hardware resource for a quarter, and don＇t decrease the performance of resisting multi-user interference. Also the hardware of PPIC receiver is implemented based on the . new implementation structure. Test result shows that the PPIC receiver can efficiently mitigate multi-user interference. Performance of bit error probability and near-far resistance in the condition of multi-user interference are well accordant with computer simulation.
出处
《信号处理》
CSCD
北大核心
2009年第7期1023-1027,共5页
Journal of Signal Processing
关键词
码分多址系统
部分并行干扰对消
多用户检测
CDMA System
Partial Parallel Interference Cancellation （PPIC）
Muhi-user Detection （MUD）
