Forward-link frequency reuse efficiency of power controlled CDMA cellular system
Muhammad Ismail, Tharek Abd Rahman · 2002
The effects of the propagation path loss coefficient (/spl gamma/) and power control on the forward-link frequency reuse efficiency (K) of a direct sequence code division multiple access (CDMA) cellular system is investigated. A simple analytical model is developed to express the interference received by a user in the home cell from other base stations based on the inverse power-of-distance /spl gamma/ law. Proper factors for optimum power control performance are estimated according to /spl gamma/. With these factors, K is improved to twice that without power control for /spl gamma/ between 4.5 and 2.5. The degradation in K as /spl gamma/ is increased is significantly less for CDMA than for the traditional FDMA and TDMA cellular systems.