Joint rate regulation and power control for cochannel interference limited wireless networks

Centralized and distributed algorithms for joint rate regulation and power control are proposed for the wireless networks where the cochannel interference limits the capacity. The goal of the proposed algorithms is maximizing the data rate while minimizing the transmitting power on each hop of the wireless networks. The distributed algorithm simulates the operation of the centralized algorithm in a distributed fashion and need not measure the link gains for all transmission links and interference links. We prove that the distributed algorithm can find the maximal transmitting rate and the minimal transmitting power as the centralized algorithm does. Simulation results also show that the proposed distributed algorithm outperforms the previous distributed algorithm in the data rate achieved. Copyright © 2011 John Wiley & Sons, Ltd.