Impact of physical propagation environment on ad-hoc network routing protocols

Authors:
Nuraj Pradhan;Tarek Saadawi
Affiliations:
Department of Electrical Engineering, City University of New York, USA.;Department of Electrical Engineering, City University of New York, USA
Venue:
International Journal of Internet Protocol Technology
Year:
2009

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Abstract

In this paper, we analyse the impact of physical propagation model on the performance of ad-hoc network routing protocols. The impact of different propagation environments on a typical routing protocol such as Optimised Link-State Routing (OLSR) is presented through simulations. A log-distance path loss model, log-normal shadowing model and rayleigh fading model is used to model the dynamic physical channel for two different environments: open _environment characterised by open area, and city _environment characterised by urban environment. We will show that network throughput degrades; average delay and routing packet overhead significantly increase in a higher attenuating environment such as the city_environment.