Energy Modeling Inside a Cluster for the Multi-hop Clustered Sensor Networks

Wireless Sensor Networks consisting of a number of small sensor nodes with limited battery power are deployed to collect useful information from the field. Since neighboring sensor nodes generally have the data of similar information, duplicate transmissions of similar information are usual. In order to prevent energy wastes by duplicate transmissions, it is advantageous to organize sensor nodes into clusters and have the cluster-head node to aggregate the collected data and transmit them on behalf of its cluster. The performance of the clustering scheme is influenced by a method of cluster-head election and the size or the number of clusters. Thus we should optimize these factors to maximize the energy efficiency of the clustering scheme. In this paper, we model the energy consumed by cluster-member nodes inside a cluster for the multi-hop clustered sensor networks. Simulation shows that our model is more accurate than the existing energy model