Impact of Mac Layer on the Performance of Odmrp, Fisheye, Aodv and Dsr, Routing Protocols in Mobile Ad Hoc Networks

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Impact of MAC Layer on the Performance of ODMRP, Fisheye, AODV and DSR, Routing Protocols in Mobile Ad hoc Networks

A. Sravani, G. Srinu, and A.Venkataramana Abstract— Mobile Ad hoc Network is an emerging area. Its standards are defined by IETF. MANET is a self generated, self organized and self handled network consisting of collection of independent nodes. MANETs Presents several desirable properties like dynamic topology, Easy of deployment and robustness, which are qualify them as an attractive topic for the research community. Providing QoS routing is a major issue in MANETs. Media Access Control layer plays crucial role in Ad hoc networks. Several routing protocols have already been proposed for MANETs. This paper describes the impact of MAC layer protocols like 802.11 and CSMA on the various routing protocols like AODV, DSR, ODMRP and Fisheye. Numbers of simulation scenarios were carried out by using Glomosim-2.03. The QoS parameters used are Throughput, Delay and PDR. Simulation results found that AODV performs better in 802.11 and CSMA, DSR and ODMRP performs better in only under 802.11.

Keywords— MANET, AODV, DSR, FSR, GloMoSim, ODMRP
I. INTRODUCTION
Wireless communication networks are basically two types as shown in Fig.1. One is infrastructure based and other one is infrastructure less. Infrastructure based is cellular communications whereas infrastructure less is ad hoc networks.

Fig.1 Classification of wireless communication networks

A. Cellular Networks
A Cellular Network is a wireless network distributed over areas called cells, each served by at least one fixed location known as a cell site or base station. The presence of base stations simplifies routing and resource management in a cellular network as the routing decisions are made in a centralized manner with more information about the destination node. The base station…...

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