Energy-Efficient Algorithm Based on Gradient Based Routing in Wireless Sensor Networks
Energy efficiency is one of the critical parameters for the routing protocol in wireless sensor networks. In this paper, two energy efficient algorithms based on the Gradient-Based Routing (GBR) protocol are proposed. First, a Competing algorithm for GBR (GBR-C) is proposed. The core idea in this algorithm is to forward the message to more than one next hop nodes and hence reduce the retransmission and save the related energy. Secondly, a Refilling algorithm for GBR (GBR-R) is proposed which can prolong the lifetime of a network by 'Refilling' new nodes into the network, a process in which new nodes are refreshed in the network.