基于变步长盲自适应干扰抵消的RAKE接收方案

RAKE Reception Scheme Based on Blind Adaptive Interference Cancellation with Variable Step Size

提出一种变步长盲自适应多用户检测算法 ,并构造了 RAKE接收方案 ,以抵消多址干扰和克服多径衰落 .理论分析和数值模拟表明 ,以上算法的收敛性能和误码性能均好于 MOE检测器 。

Multi- path fading and multiple access interference( MAI) are two major impairmentson the per- formance of code division multiple access( CDMA) system.This paper proposed a new algorithm of blind adaptive multiuser detection with variable step size and constructed a RAKE reception scheme for combat- ing both of them.The theory analysis and numerical simulation show that the convergence performance and symbol error performance of the new algorithm are better than that of the mean output energy ( MOE) algorithm.The RAKE reception scheme is very promising for practical applications.