A Study on Network Latency in the Concentric Clustering Scheme

Abstract

A wireless sensor network is composed of numerous sensor nodes. There are two kinds of routing protocol for sensor neworks such as a flat-based and a hierarchical-based routing protocol. In a hierarchial-based routing protocol, the role of sensor nodes is different to reduce their energy consumption. In our previous paper, we proposed concentric clustering scheme to reduce the total residual energy of a sensor network. It is one of hierarchical-based routing protocols. There are some simulation result to show that the scheme is better than existing routing protocol. However, their are no consideration of the wireless communication characteristics in this simulation result. We should to apply these characteristics to the scheme to get precise simulation result. In particular, the network letency is important factor in the wireless communication. So, we proposed the approaches to apply network latency by using some equations. We compare a total residual energy between a conecentric clustering scheme with a consideration of network latency and without it. As shown the simulation results, energy consumption from network latency is significant and we should to apply it to get the practical simulation results.