E ect of Signal Quantization on the Performance ofLMMSE Receiver in WLL

| This paper examines the eeect of signal quantization on the performance of an adaptive LMMSE DS-CDMA receiver in the up-link of low mobility, high data rate wireless local loop (WLL) application. The baseband receiver considered is the LMS-LMMSE receiver which includes the nite quantization of the incoming signal. Both AWGN channel and mul-tipath channel model based on actual channel measurements are used in the computer simulations. Also the eeect of imperfect power control on the signal quantization is considered. It is shown that the degradation in the performance of the receiver is relatively insigniicant with practical levels of quantization.