Iterative Maximal Ratio Combining Channel Estimation for Multiuser Detection on a Time Frequency Selective Wireless CDMA Channel
Date
2007
Authors
Shi, Zhenning
Reed, Mark
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Institute of Electrical and Electronics Engineers (IEEE Inc)
Abstract
In this paper, we investigate the performance of DS-CDMA systems in dispersive fading channels. We develop a low-complexity receiver that jointly performs channel estimation and multiuser decoding in an iterative manner. Pilot symbols, together with the soft decoding information on the transmitted data are harnessed to estimate the time-varying channel states, which in turn leads to improved detection and decoding results. We show through simulation and mean square error analysis that the proposed system can sustain a high-throughput WCDMA transmission.
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Keywords
Keywords: Code division multiple access; Iterative decoding; Mean square error; Multiuser detection; Time varying systems; Wireless telecommunication systems; Dispersive fading channels; Time-varying channel states; Channel estimation
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Source
2007 IEEE Wireless Communications & Networking Conference
Type
Conference paper
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Restricted until
2037-12-31
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