Impact of physical propagation environment on ad-hoc network routing protocols. (22nd July 2009)

• Record Type: Journal Article
• Authors: Pradhan, Nuraj; Saadawi, Tarek
• Is Part Of: International journal of internet protocol technology. Volume 4:Number 2(2009)
• Page Start: 126
• Page End: 133
• Publication Date: 2009-07-22
• Subjects: ad-hoc networks -- routing protocols -- OLSR -- optimised link-state routing -- physical propagation models -- simulation; File Transfer Protocol (Computer network protocol) -- Periodicals; Multicasting (Computer networks) -- Periodicals; 004.678
• Languages: English
• ISSNs: 1743-8209

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.