An Improved Location-Aided Routing Protocol for Mobile Ad Hoc Networks with Greedy Approach

Abstract:- A mobile ad hoc network (MANET) is a dynamically reconfigurable wireless network that does not have a fixed infrastructure. Due to the high mobility of nodes, the network topology of MANETs always changes. This makes it more difficult to find the routes that message packets use when they are routed. In this paper, we propose an efficient greedy location-aided routing (GLAR) scheme to improve the efficiency of location-aided routing (LAR) scheme for MANETs. In this scheme, we first decide a baseline, which is the line between the source node and the destination node, for route discovery. The request packet is broadcasted in a request zone based on the baseline to determine the next broadcasting node. The neighboring node with the shortest distance to the baseline is chosen as the next broadcasting node. We also propose a partial reconstruction process that maintains a routing path. When a node on a routing path finds that a link is broken, the node starts the process of routing maintenance. Simulation results show that the proposed GLAR can reduce the control overhead and increase the route lifetime than LAR