Improved location aided cluster based routing protocol for GPS enabled manets

Abstract

Routing has been the main challenge for ad hoc networks due to dynamic topology as well as resource constraints. Completely GPS free as well as GPS scarce positioning systems for wireless, mobile, ad-hoc networks has been proposed recently by many authors. High computational overhead and high mobility of the nodes typically require completely GPS enabled MANETs for higher performance. In this paper, Improved Location aided Cluster based Routing Protocol (ILCRP) for GPS enabled MANETs has been evaluated for performance metrics such as end to end delay, control overhead, and packet delivery ratio. Use of cluster based routing as well as exact location information of the nodes in ILCRP reduces the control overhead resulting in higher packet delivery ratio. GPS utility in nodes reduces the end to end delay even during its high mobility. Simulations are performed using NS2 varying the mobility (speed) of nodes as well as number of the nodes. Results illustrate that the ILCRP performs better compared to other protocols. © 2010 Springer-Verlag Berlin Heidelberg.