A soft capacity method for CDMA cellular networks based on adaptive homogenous SIR threshold

It has been proven that the centralised method provides optimum control for radio resource management. In this paper, we propose a soft capacity method by means of a homogenous near-optimum SIR target algorithm for CDMA cellular systems based on distributed power control (DPC) methods. Simulation results prove that the system capacity (or resources) is maximised if the SIR target management at the load controller is considered. Moreover, during high cell load, by removing users experiencing the worse link loss, a gain in the capacity is observed as well as reducing the noise rise in the system compare to the classical DPC fixed SIR target.