Analysis of cluster heads positions in stable election protocol for Wireless Sensor Network

Abstract

In Wireless Sensor Network (WSN) the energy consumed by each sensor is an important parameter, which affects the lifetime of the network. Therefore, different routing protocols have been developed to extend the lifetime of WSN by efficient use of energy of the sensors, what can also limit the energy used by the whole Internet of Thing (IoT) network. Nowadays, SEP (Stable Election Protocol) and LEACH (Low-energy adaptive clustering hierarchy) are the best known hierarchical routing protocols for maintaining power consumption in WSN. In SEP and also in LEACH, some nodes work as Cluster Heads (CH), which combine the records of their cluster members and transmit it to the sink. In this paper, we propose a modified Stable Election Protocol with a new algorithm for choosing cluster heads from normal nodes and advanced nodes. In each cluster, the node which is in the center of the cluster area is chosen as a cluster head. In our previous work [5] this algorithm was implemented for LEACH protocol. Finally, the results obtained for modified SEP and modified LEACH protocols have been compared.