DS/CDMA closed-loop power control with adaptive algorithm

Closed-loop power control in the reverse link of a DS/CDMA system is analys ed. The transmitter/receiver based on IS-95 and the radio propagation chann el under mobile communication environments are modelled and a new power con trol algorithm is proposed. This algorithm utilises the burst error charact eristics of the channel and can be directly applied to the current IS-95 sy stem. The new power control algorithm. with respect to the SIR (signal to i nterference ratio), increases;he service quality, and finally, enhances the system capacity.