Geographic Load Balanced Routing in Wireless Sensor Networks

Abstract

Recently the application domains of wireless sensor networks have grown exponentially.Traditional routing algorithm generates traffic related to route discovery to destination.Geographic routing algorithms exploit location information well but the problem of congestion and collision throttle its full employment for resource constrained wireless sensor networks.In this paper we present a Geographic Load Balanced Routing (GLBR), explores a technique Load balancing for WSNs which can be a viable solution to the challenges of geographic routing.Load balancing can be realized through two approaches.GLBR defines parameters based on communication overhead at sensor nodes and wireless link status through which load can be balanced across whole network.GLBR approach exploits the existing Geographic Routing approach i.e.Greedy forwarding by considering not only the distance between next hop and destination as single parameter for packet forwarding but also consider overhead at node.When load at a node is high GLBR looks for an alternate option for packet forwarding.Thus GLBR divert traffic to obviate congestion and hence avoid disconnections in the network.