An Energy-Efficient Waiting Caching Algorithm in Wireless Sensor Networks

Abstract

In a wide range of applications, such as detecting environmental hazards, monitoring remote terrain and even monitoring customer behavior, wireless sensor networks (WSNs) are playing an important role. Due to the limited energy in each node, a lot of attention has been paid on improving energy efficiency. In this paper, we first propose an energy-efficient waiting caching (EEWC) algorithm to improve the data-centric (DC) transport control protocol by cutting down traffic flow. Second, we deploy networked predictive controller (NPC) to shorten network delay. Thus, the energy consumption can be reduced accordingly. We also analyze the proposed algorithm. Finally, we conduct extensive simulation experiments to evaluate the performance of the proposed algorithm.