Correlative power control for single channel ad hoc networks

Power control for mobile ad hoc networks has received an increasing research interests in recent years. Power control can he invoked to achieve different objectives, among which the most popular goals of either increasing the network throughput by mitigating the effects of interference on a node or ensuring minimal power consumption. In this paper, we propose a correlative power control algorithm for ad hoc networks target for low energy consumption. As such, we study and exploit the correlation that exists between the appropriate transmit power of successive RTS, CTS, DATA and ACK frames and propose a power control algorithm in the framework of the IEEE802.11 MAC protocol. At the opposite of some alternative approaches our algorithm operates in a single channel and does not require additional hardware support, which makes it very appropriate for the existing IEEE 802.11 based networks. Simulation results show that our algorithm outperforms the IEEE 802.11 protocol in throughput and reduces energy consumption.