Authors : M. Sangeetha and A. Sabari
Abstract: Prolonging the network life time in mobile wireless sensor networks has become a real challenge in research ground. Cluster head selection has become an inevitable pre-phase for any network environment. Such selected cluster heads does not pose with higher lifetime leading to many distortions. In this study, we propose a nested zone-division mobility protocol for enhancing the lifetime of the elected zone heads using two phases such as setup phase and steady state phase. In setup phase, the zone head nodes for each cluster is selected based on impactual factors such as mobility, residual energy, maximum power-uphold, remoteness and selected frequency intending a load balanced cluster organization scheme with extended lifetime. The scalability and flexibility towards node density is accounted based on greedy approach for cluster formation. In steady state phase, routing and aggregation are experimented. Simulation results shows that the zone head nodes outperforms other existing protocols with higher lifetime and improved throughput when nested zone-division mobility protocol is applied.
M. Sangeetha and A. Sabari, 2016. A Novel Technique for Improving Cluster Head Lifetime in Mobile Wireless Sensor Networks. Asian Journal of Information Technology, 15: 312-322.