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

Authors: Nuraj Pradhan, Tarek Saadawi

Addresses: Department of Electrical Engineering, City University of New York, USA. ' Department of Electrical Engineering, City University of New York, USA

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.

Keywords: ad-hoc networks; routing protocols; OLSR; optimised link-state routing; physical propagation models; simulation.

DOI: 10.1504/IJIPT.2009.027337

International Journal of Internet Protocol Technology, 2009 Vol.4 No.2, pp.126 - 133

Available online: 20 Jul 2009 *

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