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A Novel MMSE Receiver for Fading Channel

WANG Yi, ZHANG Chuan fu, MA Chang zheng, WU Wei ling (Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China)  
A novel MMSE receiver suitable for fading channel is proposed,which needs only one MMSE multiuser for each user.Thus,its structure is simply.We analyze the steady state performance of the novel MMSE multiuser detection(MMUD) for downlink CDMA. On the basis of wiener solution,we prove that the output SIR and near far resistance of MMUD are mainly affected by the correlation matrix of combined spreading signatures.Simulations indicate that in general multipath channel,MMUD can suppress multipleaccess interference and multipath interference more effectively than the Rake receiver,and achieve good near far resistance,which brings great capacity achievement.
【Fund】: 国家自然科学基金重大资助项目!(6 9896 2 43)
【CateGory Index】: TN929.5
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