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.
International Journal of Internet Protocol Technology, 2009 Vol.4 No.2, pp.126 - 133
Available online: 20 Jul 2009 *Full-text access for editors Access for subscribers Purchase this article Comment on this article