A pipelined multi-stage parallel interference canceler for CDMA with realistic channel estimation

In this paper we propose a pipelined structure for multistage parallel interference canceler for CDMA. This structure is easy to implement, has small processing delay, and applies to multipath fading channels and asynchronous users. Bit error rate (BER) performance with realistic channel estimation...

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Bibliographic Details
Published in2002 IEEE Wireless Communications and Networking Conference Record. WCNC 2002 (Cat. No.02TH8609) Vol. 1; pp. 369 - 373 vol.1
Main Authors Qinfang Sun, Cox, D.C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Bit error rate
Channel estimation
Damping
Delay
Downlink
Fading
Interference cancellation
Multiaccess communication
Multiple access interference
Multiuser detection
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Summary:In this paper we propose a pipelined structure for multistage parallel interference canceler for CDMA. This structure is easy to implement, has small processing delay, and applies to multipath fading channels and asynchronous users. Bit error rate (BER) performance with realistic channel estimation is simulated and compared to the performance with ideal channel estimation. Different methods are implemented to improve the performance, such as damping the update of the soft decisions, and performing partial interference cancellation.
ISBN:9780780373761
0780373766
DOI:10.1109/WCNC.2002.993523