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- W2376155156 abstract "In this paper, the bit-error-rate(BER) performance of the asynchronous direct-sequence CDMA(DS/CDMA) multiuser system in a wireless radio communications environment characterized by Rayleigh multipath fading channels is investigated. Because of the system complexity, the BER performance of CDMA systems in such an environment is difficult to assess analytically. Monte-Carlo(MC) simulations can offer an alternative performance evaluation tools. But such an alternative is often limited by an excessive computational burden. Importance Sampling(IS) is a variance reduction technique which can significantly reduce the computational cost required by MC simulations. This paper will describe the basic principles of IS and the BER of DS/CDMA multiuser system in Rayleigh multipath fading channels is simulated using MC method and IS technique respectively. Simulation results indicate that IS results and MC results are in close agreement and that IS simulation can significantly reduce the computational cost required by MC simulation when the BER is very low." @default.
- W2376155156 created "2016-06-24" @default.
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- W2376155156 date "2000-01-01" @default.
- W2376155156 modified "2023-09-23" @default.
- W2376155156 title "On Simulation of DS/CDMA Communication Systems" @default.
- W2376155156 hasPublicationYear "2000" @default.
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