REHR: Residual Energy based Hybrid Routing Protocol for Wireless Sensor Networks

Wireless Sensor Network (WSN) is being used in the Internet of Thing (IoT) applications, where sensing of information is the prime object. WSN consists of a large number of nodes which are used for collecting valuable information from the target area, and also transmit it to respective destination. Therefore, the energy of node should be utilized efficiently, it is the most fundamental challenge of WSNs, and primarily depends on the packet routing strategy. In this paper, we are proposing a Residual Energy based Hybrid Routing (REHR) protocol, in-which direct nodes are selected by the optimum value of nodes, thereafter direct nodes and clustering-nodes are hybridly used for efficient packet transmission. Here, the packet routing strategy uses single-hop and multi-hop communication, which depends upon relative euclidean distances and residual energy of the alive nodes. This technique gives the optimal usage of the node's energy to save its energy as well as for reducing the load of the CHs. We have shown that the results of our proposed work are better in terms of the lifetime and residual energy of the network.