The performance analysis of reverse power control for DS/CDMA system

We consider a 2-tier DS/CDMA cellular system, and analyze the power control performance on the reverse link. It is assumed the radio channel experiences independent Rayleigh fading. The effects of the power control parameters such as the power control step size, BER of the power control bit, and the velocity of the mobile station are described. In order to improve the effect of power control, a variable step size power control scheme is required for the radio channel environment.