An adaptive asynchronous CDMA multiuser detector forfrequency-selective Rayleigh fading channels |
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Authors: | Tjeng Thiang Tjhung Xiaoming Xue Yongmei Dai Kar Ngai Wong Ping He |
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Affiliation: | Center for Wireless Commun., Nat. Univ. of Singapore; |
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Abstract: | An adaptive asynchronous code-division multiple-access (CDMA) multiuser detector is proposed that uses a recently derived extended Kalman filter based algorithm (see Lim, T.J. and Rasmussen, L.K., IEEE Trans. Commun., vol.45, p.213-20, 1997) to perform joint data detection and parameter tracking in frequency-selective Rayleigh fading channels. A receiver structure based on this adaptive multiuser detector is presented and its performance in terms of parameter tracking and bit error rate (BER) is investigated. The receiver is a form of an adaptive RAKE that exploits multipaths to achieve performance gain |
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