The Modelling of an Energy Efficient Algorithm Considering the Temperature Effect on the Lifetime of a Node in a Wireless Network

摘要

In wireless ad-hoc networks the nodes may be placed in a remote area and with no fixed infrastructure. Wireless nodes have limited energy resources which act as a key factor to estimate the node lifetime. Most research is based on the power aware schemes, which takes advantage of the remaining energy of wireless nodes. Existing schemes estimate remaining energy based on only current consumption and voltage, leading to erroneous estimations that result in early power exhaustion of nodes that affects real world deployment, because the residual energy in real batteries is also affected by temperature, charge cycle, aging, self-discharge, and various other factors. A lifetime estimation model examines the battery characteristics to investigate their performance under varying operational conditions more precisely. In this article a lifetime estimation model is proposed, it takes into account the varying environmental temperatures effecting battery performance. An experimental approach is proposed to determine the actual capacity of ad-hoc nodes under varying temperatures.