A new approach for power control in fading wireless channels

Power control is one of the most efficient approaches to increase the capacity and quality of service (QoS) in cellular communication systems. Existing power control approaches are mostly suitable for environments with quasi-stationary channels, while in practice, the channel characteristics may vary very fast with time. Therefore these approaches do not accurately capture the the dynamics of a real channel. In this paper we propose a new method of power control in wireless networks with Rayleigh fading signals. In this method we minimize the total transmit power subject to the constraints on outage probability and transmit powers, using geometric programming approach. Computer simulations have shown the efficiency of the proposed method.