Tejas T. Thorat, Ankush B. Zatale and Pravin Balbudhe
A wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to monitor physical or environmental conditions. A WSN system incorporates a gateway that provides wireless connectivity back to the wired world and distributed nodes. Energy consumption and limited battery life is the main issue in wireless communication especially in wireless sensor network. Therefore recently energy efficiency is getting more attention in wireless sensor network. To improve the battery life of sensor nodes we allow the sink to move in sensor network. For better sink mobility, the movement pattern of the sink should be decided, so that sink can follow the path and gather the data more efficiently also in less time. SinkTrail and SinkTrails, two energy efficient proactive data reporting protocols are used to select the shortest path for sink mobility.