TY - GEN
T1 - Turbo multiuser detection for turbo-coded CDMA
AU - Wang, Xiaodong
AU - Poor, H. Vincent
N1 - Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - An iterative receiver structure is proposed for decoding multiuser information data in a turbo-coded DS-CDMA system. The receiver performs two successive soft-output decisions, achieved by a soft-input soft-output (SISO) multiuser detector and a bank of single-user SISO channel decoders, through an iterative process. At each iteration, extrinsic information is extracted from detection and decoding stages and is then used as a priori information in the next iteration, just as in turbo decoding. A low-complexity SISO multiuser detector is developed based on a novel nonlinear interference suppression technique, which makes use of both soft-interference cancellation and instantaneous linear MMSE filtering. Turbo multiuser detectors for both the simple synchronous CDMA channels and the more complex asynchronous multipath CDMA channels are developed.
AB - An iterative receiver structure is proposed for decoding multiuser information data in a turbo-coded DS-CDMA system. The receiver performs two successive soft-output decisions, achieved by a soft-input soft-output (SISO) multiuser detector and a bank of single-user SISO channel decoders, through an iterative process. At each iteration, extrinsic information is extracted from detection and decoding stages and is then used as a priori information in the next iteration, just as in turbo decoding. A low-complexity SISO multiuser detector is developed based on a novel nonlinear interference suppression technique, which makes use of both soft-interference cancellation and instantaneous linear MMSE filtering. Turbo multiuser detectors for both the simple synchronous CDMA channels and the more complex asynchronous multipath CDMA channels are developed.
UR - http://www.scopus.com/inward/record.url?scp=84907562362&partnerID=8YFLogxK
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U2 - 10.1109/WCNC.1999.796979
DO - 10.1109/WCNC.1999.796979
M3 - Conference contribution
AN - SCOPUS:84907562362
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 1456
EP - 1460
BT - 1999 IEEE Wireless Communications and Networking Conference, WCNC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999
Y2 - 21 September 1999 through 24 September 1999
ER -