Q. M. Rahman and M. Ibnkahla (Canada)
CDMA, Nonlinear amplifier, Satellite, Rician Fading, QAM, OBO
This paper presents some analytical results on the bit error rate (BER) performance evaluation of a 4-QAM based code division multiple access (CDMA) system in the presence of nonlinear distortion. The study is carried out for slow Rician-fading and frequency-selective satellite channel equipped with a nonlinear amplifier. A correlator type receiver structure is considered in the investigation. In this study, the analysis includes the influence of the output back-off (OBO) of the nonlinear amplifier and the number of users present in the system.
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