A Novel Routing Protocol for Wireless Ad-hoc Network employing Point to Multi-Point communication

Abstract

A novel routing protocol for route reconstruction to realize high throughput on Point to Multi-Point (P-MP) communication is investigated. Route reconstruction is operated when a route becomes invalid in routing protocol. In order to transmit data packets quickly, it is important to shorten the time required for route reconstruction and to reduce broadcast packet (ROUTE DISCOVERY packet: RD) traffic needed to discover new route. In P-MP communication, the traffic of RD packet delays the transmission of data packets for other routes, so it is necessary for the routing protocol to provide high data packet throughput. A novel routing protocol to transmit RD packets to source terminals directly and to introduce the hop-limit technique is proposed in this paper. The results of route reconstruction processes are transmitted to source terminals directly, so the proposed protocol can realize rapid route reconstruction. The hop-limit technique provides to limit the route discovery area and it is possible to reduce extra traffic of RD packets. Throughput of data packets and RD packet traffic are evaluated by computer simulation. The results confirm that the proposed protocol is suitable for P-MP communication in wireless ad-hoc networks.