A Wireless Sensor Network

Greedy Perimeter Stateless Routing (GPSR) is a proven efficient geographical routing protocol for wireless sensor network. It provides routing support for Wireless Sensor Network. However, Greedy Perimeter Stateless Routing is designed for the symmetric links usually bidirectional in nature, but sensor networks are often asymmetric in nature. In Wireless Sensor Network the nodes are not designated through their IP addresses but they are marked with their destinations. But when the destination node is outside the boundary, GPSR suffers in energy inefficiency because it has to trace all the nodes in the location to reach the destination node. In addition to this, another key problem is data dissemination which becomes a major challenge in deploying GPSR in Wireless Sensor Networks. In this paper various versions of GPSR are analyzed for optimal path based on energy consumption and overcome problems in GPSR so that the feasibility of using GPSR in asymmetric WSN can be increased.