Improving Network Lifetime Using a Mobile Sink with a New Energy Efficiency and Minimum Delay Movement Strategy for WSNs
Noushin Rakhshan, Marjan Kuchaki Rafsanjani · 2012
In this paper, we focus on maximizing lifetime of a Wireless Sensor Network (WSN) using a mobile sink with a new movement strategy. We have considered a hierarchical network with some clusters that cluster heads are responsible for collecting data from their own clusters. We have proposed an energy formula that determines the moving times of sink based on residual energy of sensor nodes. Furthermore, we have used an approach to calculate optimum path, if sink recognizes that it must move. With our new strategy, we can see that network life time is increased extremely.