Energy-Efficient Rate Control in Wireless Mesh Networks
Tahmineh Mirzaei Solhi · Medical Informatics · 2012
With increasing growth in the users’ demand for high throughput, more and more energy is consumed in Wireless Mesh Networks (WMNs). On the other hand, energy efficiency is an important issue in contexts of using the energy-constrained resources or having an eco-friendly network. Since network throughput is correlated to the rate at which users send their data, we can reach to energy efficiency target in WMNs by controlling the users’ rate. Motivated by this, here we present an approach to control the users’ rate. The proposed approach is formulated by using the linear optimization framework that its objective is maximization of throughput subject to the required constraints on network lifetime and devices’ function time. Also, we formulate the problem of users’ rate control as Multi-Objective Linear Programming (MOLP) to find a tradeoff between maximizing the throughput and minimizing the aggregated power consumption of relay Wireless Mesh Routers (WMRs). Our numerical results show the effect of devices’ initial energy and function time on the network throughput. Also, our experiments illustrate a tradeoff relationship between the network throughput and lifetime, and also, the linear relationship between network throughput and aggregated power consumption of relay WMRs .