Rate prioritized power adaptation: A throughput maximizing power conservation algorithm for IEEE 802.11 WLANs

Abstract

If the rate and power of WLAN transmissions are kept constant, they have to be designed for the worst case channel condition, thus resulting in the wastage of bandwidth and power. Effective utilization of these limited resources is crucial in wireless communications and hence the rate (or) power adaptations have become the focus of many research works. Methods proposed involve techniques for either power minimization, throughput maximization or a trade off between the conservation of these two resources. In this work, we propose and design a Rate Prioritized Power Adaptation (RPPA) technique for adapting both rate and power with an objective of conserving the power while achieving the best possible bandwidth utilization by maximizing the transmission throughput.