结合RAKE接收的判决反馈多用户检测器  

DECISION-FEEDBACK MULTI-USER DETECTOR WITH RAKE RECEIVER

作　　者：卢鑫 

机构地区：[1]哈尔滨工程大学电子工程系,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2001年第5期68-71,0,共4页Journal of Harbin Engineering University

摘　　要：提出将RAKE接收与判决反馈多用户检测相结合的接收方案 ,并对聂景楠提出的判决反馈多用户检测器 ,采用分组去相关法加以改进 ,从而带来检测器运算速度的增加、节省所需内存 ,而且考虑了用户功率大小对判决反馈的影响 ,及RAKE接收技术的采用 ,降低了误码率 ,使系统整体性能得到提高 .研究结果表明 ,新的方案在性能上明显优于不带RAKE的判决反馈多用户检测器和R .Cupas提及的解相关检测器 .Studies the design of decision-feedback multi-user (DFM) detector with RAKE receiver which improves a common DFM detector based on block-decorrelation and optimizes the overall capacity of the system on such as computatin speed of detector, economic use of memory, and reduction of error probability with the influence imposed by the power of user on the decision feedback and the adoption of RAKE receiver thchnology, and concludes that the new receiver is better than DFM detector without RAKE and decorrelator.

关 键 词：多用户检测 RAKE接收 判决反馈检测器 多址干扰 CDMA通信系统 误码率 多组去相关法 

分 类 号：TN914.53[电子电信—通信与信息系统]