Packet-based nonlinear battery energy consumption optimizing for WSNs nodes

Abstract

Battery energy nonlinear consumption is a key issue for wireless sensor networks (WSNs) nodes which operate on nonrenewable batteries. The topic has been widely studied by researchers in current years. However, to the best of our knowledge, there is no literature that provides the exact reason for the energy consumption nonlinear character of a battery, and calculates the exact nth value of a battery energy under nonlinear consumption condition. In this paper, we develop a realistic battery energy consumption model, combining with transmitting signal energy and circuit power consumption in WSNs. Based on the developed model, we study the battery energy consumption based on packets instead of the pulses under two packet assembly approaches that are length-based and time-based assembly approaches. An extensive simulation is given to validate the proposed model and evaluate the performance of the nonlinear battery energy consumption.