Study On Energy Balanced And Non-uniform Clustering Routing Protocol For WSN

As a new technique of implementing Pervasive Computing,wireless Sensor Network (WSN) is having a profound effect on way of people'life. In many challenges of WSN' related research fields, the routing protocols of WSN are one of the most important issues. How to save energy and extend the network life is a core and basic problem in routing protocol design of WSN. Clustering routing protocols is better than flat routing protocols for its less energy consumption:members of a cluster are simple in function, and all the data of a cluster are merged by cluster-head, which reduce the amount of transfer. So current research is focus on clustering routing protocols. But current clustering routing protocols have some shortcomings such as much energy consumption in cluster forming, not uniform in data transfer, and so on.With the problems of current cluster-based routing protocols,an energy-balanced routing algorithm for WSN is presented in this paper, according to different energy stages of WSN' life circle and the centripetal characteristics of data transmission. Through balancing a random number and residual energy and change into time delay, the node decide to become a cluster head itself. For routing of cluster heads, this paper proposed an open routing framework based on cluster heads, and realize an energy balance cluster routing algorithm based on this open framework. This algorithm balance energy consumption of cluster heads and cluster members, and extend the network life cycle effectively. Additionally the open framework of cluster-heads extends the scalability for different applications. This paper simulates the algorithm and LENCH routing algorithms and give the analysis of the result. The simulation results show that the algorithm exceeds LENCH in saving energy and prolonging the network's lifetime.