Strategy of SinkTrail protocol for energy efficient data gathering in wireless sensor network

In wireless sensor network data gathering is one of the main applications. In data collection energy saving is the main issue as limited battery life of the sensor node is a issue to resolve so to reduce the energy consumption of sensor nodes a concept of mobile node is introduced. In this concept sensor nodes are static where the sink nodes are movable which collects the data from the static sensor node process and transfer the data to base station. For improving the sink mobility, the mobality pattern of the sink should be decided, so that sink can follow the path and gather the data efficiently also in less time. SinkTrail and SinkTrails, two energy efficient proactive data reporting protocols which are used to select the shortest path in case of sink mobility.