Energy Efficient WSN using GPSR for Mobile Sink

In wireless sensor network (WSN) the use of mobile sink collector has been attracting more attention in recent times. The sensor nodes in WSN have small amount of power supply and storage hencethe mobile sink collectors are more effective way of balancing energy expenditure among sensors. In this paper, we consider applications, where sensing data are generally collected at a low rate and are not so delay sensitive that it can be collected into fixed-length data packets and uploaded once in a while. We propose a mobile data collector, which moves to the vicinity of the sensor nodes to collect data. A mobile collector will travel a sensing field periodically. When travelling through its transmission range, it polls each sensor. Thus it collects data from each sensor using one to one communication. As data packets are directly uploaded to the sink without relays, the energy consumed by the sensors will not be wasted in multi-hop relaying. In this paper, we discuss The Mobile sink which finds a route to the sensor node by using spanning tree covering algorithm. Sensor location information is collected using greedy perimeter stateless routing. We evaluated network performance by parameter energy consumption.