Corona based clustering with mixed routing and data aggregation to avoid energy hole problem in wireless sensor network

In a Wireless sensor network, the energy hole problem is a severe issue that forces the nodes near the sink to exhaust their energy sooner than the nodes deployed in the outer region, resulting the reduced the network lifetime. To overcome this problem, a novel clustering scheme with load balancing is proposed for a corona model network, where the coronas are divided into sector and form homogenous clusters. In the homogenous cluster, some nodes inside the circular centroid region (CR) forms cluster head (CH) to control network operation. It is important that the Load handled by the cluster heads are to be balanced by means of mixed routing strategy together with data aggregation. It is seen that this technique balances the energy in the network. The simulation result shows that this technique out performs other clustering scheme in terms of network lifetime and energy dissipation.