Soft-PIC multiuser detection in MC-CDMA uplink system

被引：0
|
作者：
Guo Li-li and Yuan Bing-bingSchool of Information and Communication Engineering
机构：
来源：
Journal of Marine Science and Application | 2005年 / 02期
关键词：
multi-carrier code division multiple access; multiuser detection; soft parallel interference cancellation;
D O I：
暂无
中图分类号：
TN929.533 [码分多址（CDMA）移动通信];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
It is necessary for an MC-CDMA uplink receiver to employ MUD (multiuser detection) in a frequency selective fading channel. After analyzing the algorithm of PIC(parallel interference cancellation) MUD, a novel MUD scheme, Soft-PIC (soft parallel interference cancellation) is proposed. Based on the reliability of each detected user signal in the former stage, this Soft-PIC detection scheme substitutes a soft decision of the variable for the hard decision in PIC scheme. Compared with the PIC scheme, it can reconstruct the interference signals more accurately and eliminate MAI(multiple access interference) in a more efficient way.PIC is one of the most practical schemes in numerous multiuser detection technologies. However, Soft-PIC as an improved PIC scheme deserves further study.
引用
收藏
页码：65 / 69
页数：5
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