Development Of New Arp Routing Protocol For Multihop Transmission In Ad Hoc IEEE 802.11 Networks

Ida Syafiza, Md Isa (2013) Development Of New Arp Routing Protocol For Multihop Transmission In Ad Hoc IEEE 802.11 Networks. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Ad hoc networks are becoming more important in the modern complex environment. The ad hoc network can be used to instantly connect to the local or remote networks such as the Internet without the need of pre-existing infrastructure or centralized administration. The users of the network together will establish the infrastructure. Limited radio range transmission is one of the major problems in ad hoc network. Due to this, multiple network ‘hops’ are needed to send data across the network. The devices in the network will act as a router in order to forward the data to the final destination. There are varieties of routing protocols targeted for this environment that have been proposed and developed. However, most of them suffer from high overhead data traffic. The main purpose of this project is to implement the ad hoc network with the existing network protocol that had been already used in network environment which is the Address Resolution Protocol (ARP). ARP was designed to announce or find MAC addresses. However, in this work we have extended the usage of the ARP protocol as routing protocol in wireless ad hoc network. Our ARP route provides two new operation types, ARP Forward Request and ARP Forward Reply to allow the multihop transmission using intermediate nodes to forward the request and reply. These two operation types only used the current operation codes which are ‘0x0001’ for request and ‘0x0002’ for reply. The current studies on this routing protocol create a new operation code for the ARP forwarding scheme which is ‘0x000c’ for forwarding. We have successfully managed to create a multi hop transmission in an ad hoc network by using the current existing operation code for the ARP forwarding. The 802.11b test-bed has been configured and the ARP routing protocol has been implemented for multi hop transmission. The experiment in the open space provides the comparison of environment with obstacles and without obstacles. We manage to get more than 50% of packet receive at a place with no obstacles and more than 45% in a place with obstacles. In order to show the effectiveness of the proposed methods, a simulation using OMNET++ has been simulated for the three nodes and the results are compared with the current protocol which is Ad Hoc On Demand Distance Vector, AODV protocol. The data can be sent through multi hop transmission until it reaches the destination. From the simulation it shows that ARP protocol works better than ADOV. The proof of method is shown by using several graphs namely in terms of time, packet loss and also throughput.

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