CDMA power control using channel prediction in mobile fading channels

This paper presents a CDMA closed-loop power control (CLPC) using channel prediction in time-varying mobile fading channels. The proposed CLPC that relies on least square (LS) or least mean square (LMS) based autoregressive (AR) low-rate prediction provides a particularly robust performance for large loop delays, especially in the presence of channel estimation errors. As the mobility increases the proposed CLPC reduces mean-square error (MSE) further than conventional CLPCs. The Monte-Carlo simulation results demonstrate the superiority of the proposed CLPC over conventional nonpredictive and predictive CLPCs.