July 7, 2003 Building a Wireless LAN traffic test case in ns2 Radio Science Laboratory Department of Electrical and Computer Engineering The University of British Columbia Kassim Olawale by

Building traffic test case in ns2 Summary of Work Created and ran a tcl script with 2 APs and 6 clients Created and ran a tcl script with 2 APs and 6 clients Identified some of the current traffic models in ns2 Identified some of the current traffic models in ns2

Building traffic test case in ns2Outline Test case developed Test case developed Current traffic generation programs in ns2 Current traffic generation programs in ns2 Conclusions and future work Conclusions and future work

Building traffic test case in ns2 Test case developed 2 APs (base stations) connected to the same wired node 2 APs (base stations) connected to the same wired node 6 clients (mobilenodes) connected to one of the base stations (the other base station is idle) 6 clients (mobilenodes) connected to one of the base stations (the other base station is idle) Two of the clients send or receive data from the wired network through a base station Two of the clients send or receive data from the wired network through a base station This script can be used for testing new propagation models and new traffic models This script can be used for testing new propagation models and new traffic models

Building traffic test case in ns2 Test case developed

Building traffic test case in ns2 Test case developed Run demo Run demo Issues : Issues : Propagation model Propagation model Range of wireless nodes Range of wireless nodes Outgoing and incoming traffic Outgoing and incoming traffic Others Others Movement pattern of wireless nodes Movement pattern of wireless nodes Connection of mobile nodes to various base stations (association and authentication) Connection of mobile nodes to various base stations (association and authentication)

Building traffic test case in ns2 Traffic generation in ns2 UDP UDP Constant bit rate (CBR) Constant bit rate (CBR) Exponential traffic Exponential traffic TCP TCP ftp ftp Scenario generator Scenario generator Topology generator Topology generator Agent generator Agent generator Route generator Route generator

Building traffic test case in ns2 Traffic generation in ns2 UDP traffic configuration parameters UDP traffic configuration parameters CBR CBR Exponential traffic Exponential traffic set traffic [new Application/Traffic/Exponential] set traffic [new Application/Traffic/Exponential] $traffic set packet-size $size $traffic set packet-size $size $traffic set burst-time $burst $traffic set burst-time $burst $traffic set idle-time $idle $traffic set idle-time $idle $traffic set rate $rate $traffic set rate $rate $traffic attach-agent $source $traffic attach-agent $source

Building traffic test case in ns2 Traffic generation in ns2 TCP TCP ftp ftp set ftp [new Application/FTP] set ftp [new Application/FTP] $ftp attach-agent $tcp $ftp attach-agent $tcp $ns_ at 10.0 "$ftp start" $ns_ at 10.0 "$ftp start"

Building traffic test case in ns2Conclusions Produced a simple wireless network test case in ns2 Produced a simple wireless network test case in ns2 Identified current traffic generation tools in ns2 Identified current traffic generation tools in ns2

Building traffic test case in ns2References 1. S. McCanne and S. Floyd. ns Network Simulator Kevin Fall, Kannan Varadhan, and the VINT project. The ns manual. documentation.html