DEAR: Delay and Energy Aware Routing In Wireless Sensor Networks

One of the critical issues in a Wireless Sensor Network (WSN) is the design of a proper routing protocol. While the requirement of low latency and low-energy consumption is getting more and more importance in emerging applications, the WSN should be capable of fulfilling its mission in a timely manner and without loss of energy. In this paper, we focus on multi-hop flat routing. A mathematical model for Delay and Energy Aware Routing (DEAR) is proposed. Our model aims to build a trade-off between energy consumption and delay. The goal is to find out a route from all sensor nodes to the base station, which has a comparably lower overall distance, with fewer data forwards. We define a multi-objective function for simultaneously minimizing the distance and minimizing the delay in forwarding. To demonstrate the effectiveness of DEAR, we compare it with the LeeMoon (Lee and Moon Model), the MHRM (Minimum Hop Routing Model), and the MTEM (Minimum Transmission Energy Model). the numerical results show that our model outperforms those models in terms of latency and energy consumption.