An improved Maximum Uniform SIR power control in ad hoc networks

Power control is quite important for battery powered ad hoc networks, and affects the network capacity, interference and network lifetime, etc. So, the reasonable power control scheme is necessary. In this paper, a modified MUSIR (Maximum Uniform Signal to Interference Noise Ratio) based on the SIR matrix but with better power updating algorithm is proposed to achieve power control in ad hoc networks. It utilizes the advantage of the MUSIR power control algorithm with less information to be transmitted and distributed power control mode. The simulation results show that the proposed power control algorithm is better than the MUSIR power control algorithm in terms of dynamic and stable performance. It not only can adapt the environment fastly but also can save more energy and prolong the network lifetime.