Modeling and Performance Simulation of Source Initiative Routing Protocol in Wireless Network

Abstract

Opportunistic data forwarding represents a promising solution to utilize the broadcast nature of wireless communication links. The opportunistic data forwarding has drawn much attention in the research community of multi-hop wireless networking, with most research conducted for stationary wireless networks. One of the reasons why opportunistic data forwarding has not been widely utilized in mobile ad hoc networks (MANETs) is the lack of an efficient, light-weight proactive routing scheme with strong source routing capability. A new routing protocol named PSR for ODF in mobile ad-hoc networks. PSR is featured by proactive source routing, loop free, and extremely small routing overhead but energy efficient or not that not focused and evaluated by researchers. The link quality variation of wireless channels has been a challenging issue in data communications until recent explicit exploration in utilizing this characteristic. It is also challenging issue for ODF, because due to link quality variation neighbor discovery overhead increased that affect the performance of routing protocol. Widely hello messages use to discover the neighbor, in PSR also use hello message to discover neighbor but in double quantity, number of hello message increased in PSR and it is directly proportional to energy consumption metric, so that energy consumption also increase in PSR. This paper proposes the use of currently introduced scheme “an Adaptive Hello Messaging Scheme for Neighbor Discovery in On-Demand MANET Routing Protocols†in PSR to reduce the suppression of unnecessary Hello messaging based on the event interval of a node. That reduces the energy consumption of node and enhances the performance of ODF in MANET.