Analysing the Behaviour and Performance of Opportunistic Routing Protocols in Highly Mobile Wireless Ad Hoc Networks

摘要

Recent advances in wireless networks have enabled us to deploy and use mobile ad hocnetworks for communication between the rescue officers in disaster recovery and reconstructionoperations. This highly dynamic network does not require any infrastructure or centralized control. Asthe topology of the network remain dynamic, severe performance limitations incur with traditionalrouting strategies. Recently a new routing paradigm known as opportunistic routing protocols have beenproposed to overcome these limitations and to provide efficient delivery of data in these highly dynamicad hoc networks. Using the broadcasting nature of the wireless medium, this latest routing technique triesto address two major issues of varying link quality and unpredictable node mobility in ad hoc networks.Unlike conventional IP forwarding, where an intermediate node looks up a forwarding table for asuitable next hop, opportunistic routing brings in opportunistic data forwarding that allows multiplecandidate nodes in the forwarding area to act on the broadcasted data packet. This increases thereliability of data delivery in the network with reduced delay. One of the most important issues that havenot been studied so far is the varying performance of opportunistic routing protocols in wireless networkswith highly mobile nodes. This research paper analyses and compares the various advantages,disadvantages and the performance of the latest opportunistic routing protocols in wireless ad hocnetworks with highly mobile nodes.