Beacon routing algorithm in wireless sensor networks with mobile gateway

In this article, we first propose a reverse sector mechanism and an optimization division mechanism, which can provide enormous energy conservation benefits. Based on these mechanisms, an efficient sensory data collection mechanism over a cellular-WSN integrated network, named beacon routing algorithm, is proposed to spontaneously renew the local WSN topology according to the position of the UE relative to the location of the beacon cluster under an optimized network division pre-set. Different from the previous studies, beacon routing algorithm achieves the adaptive topology renewal without additional re-clustering overhead. Through performance evaluation, we can implement WSN by making a trade-off between network scale and sector division. Moreover, optimal energy efficiency can be obtained in each divided sub-network; therefore, the WSN lifetime can be increased significantly and the data collection efficiency will be enhanced. Simulation results are presented to show the performance of the proposed algorithm.