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Performance of linear multiuser detectors in time-varying multipath fading CDMA channels

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2 Author(s)
Stojanovic, M. ; Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA ; Zvonar, Z.

A class of linear multiuser detectors in which multiple-access interference is eliminated prior to combining is considered for application in rapidly fading multipath channels. Performance of an adaptive coherent receiver with maximum-ratio combining and that of a differentially coherent receiver with equal-gain combining are evaluated analytically, showing functional dependence on the fading rate of the channel and the number of active CDMA users. Fading-induced imperfect channel tracking leads to performance degradation, resulting in irreducible bit error rates

Published in:

Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity

Date of Conference:

18-22 Nov 1996