Simulation Evaluation of Wireless Web Performance in an IEEE 802.11b Classroom Area Network

Authors:
Guangwei Bai;Carey Williamson
Affiliations:
-;-
Venue:
LCN '03 Proceedings of the 28th Annual IEEE International Conference on Local Computer Networks
Year:
2003

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Abstract

This paper presents a simulation study of an IEEE802.11b wireless LAN (WLAN) used as a classroom areanetwork. The simulation is conducted using OPNET Modeler9.1. The first part of the paper discusses parameterizationand validation of the simulation model, based onempirical measurements in a wireless classroom environment.The second part of the paper presents a simulationstudy designed to estimate the number of clients that can besupported in the WLAN, as well as the user-perceived Webresponse time as a function of network load. The simulationresults show that an IEEE 802.11b WLAN can easilysupport up to 100 clients with modest Web browsing activities.The results also show that protocol features suchas persistent connections provide a significant performanceadvantage in a WLAN environment.