Multi-step increase of the forwarding zone for LAR protocol in ad hoc networks
Floriano De Rango, Antonio Iera, Antonella Molinaro, S. Marano · 2004
This paper focuses on that class of routing algorithms using information about geographical location of the mobile nodes in wireless ad hoc networks. We propose a modification in the way of re-computing the forwarding zone of route request packets for the location-aided routing (LAR) protocol. The shape and extension of this zone influences the protocol performance in terms of control overhead, packet delay and loss. We study the impact of a multi-step resizing of the request zone on the LAR protocol performance, and make comparisons with other routing protocols (such as the original LAR scheme 1 and the promiscuous-dynamic source routing protocol). Simulation results show how our approach adds to the advantages of LAR scheme 1 the further advantage of reducing the control overhead.