The criteria for the cluster selection for single hop and multi-hop based sensor-cloud environment

Abstract

The major drawbacks of the routing model energy consumption of cluster head (CH) are increased due to their additional functions. Most CH formations depend on a single criterion, which is that CH is generally elected on the basis of randomly or residual energy, sink distance or node density. If the head node is chosen on the basis of residual energy, but the higher energy node is too far away to sink, then the problem appears for election on CH. Similarly, the same problem will arise when distance is shorter to the sink and CH is created near the BS. So, a single criterion is not enough for the chosen head node. A multiple criterion is proposed to overcome this problem. In this paper multi-hopping communication is considered in the cases of intra-cluster and inter-cluster communication, where the CH formation is calculated using Analytical Hierarchy Process (AHP). The outcomes are recorded with 5% improvement when compared to conventional methods in terms of energy efficiency, network life span, control overhead, less cluster head deformation.