ESHARP: Energy-Efficient and Smart Hierarchical Routing Protocol Based on Smart Slumber for Wireless Sensor Networks

This paper proposes a new energy management function intended to be integrated in the Hierarchical Smart Routing Protocol (HSRP) mainly proposed for Wireless Sensor Networks (WSNs). This technique, called Smart Slumber, allows sensors to be on pause for a definite period to minimize energy consumption. The waking periods are well coordinated in order to maintain data routing and ensure the QoS of the network. They spread over two axes: in depth and width of quarters forming the network to ensure longevity and preventing network interruption. Obtained results indicate that the proposed technique enhances the network lifespan of about 45% compared to the classic HSRP while it ensures an improvement of more than 400% with regard to the famous LEACH whereas the Packet Delivery Ratio exceeds 92%.