Theoretical model

You will need to do some background research to examine how other authors have developed throughput models. The following two papers are a good start:

1. XIAO Yang, IEEE 802.11n: Enhancements for higher throughput in wireless LANs. IEEE Wireless Communications , Dec 2005, pg 82-91.

2. XIA0 Yang, ROSDAHL Jon, Throughput and Delay Limits of IEEE 802.11. IEEE Communications Letters Vol 6 No 8 Aug 2002.

Here you need to develop a model to allow you to calculate actual data throughput against underlying data rate. You need to plot this data for a number of packet sizes. Additionally you need to provide the data in tabular form as part of an excel spreadsheet within the Appendix.

Practical work (or Simulation)

You need to perform a number of experiments to measure actual throughput rates for a system using physical experiments or a network simulator of your choice (OMNET++ or OPNET or any other suitable simulator). You are required to measure data throughput using an access point supporting the 802.11 mode (a, b or g) you chose to investigate. For practical experiments, throughput can be measured using JPERF and IPERF traffic generation software or the more sophisticated ZTI traffic generator. Wireless traffic (i.e. traffic through the air between the AP and WNIC) needs to be monitored using Omnipeek or AirPCap on a probe WNIC. For a simulation environments, select appropriate configurations and parameters to obtains the throughput results.

Throughput measurements should be taken for the maximum speed available for your chosen standard. You will need to analyse the data collected carefully and compare your observations with the theoretical predictions you have developed.

Additionally, you need to measure throughput with your chosen security mechanism implemented on the wireless link. You should end up with a set of results, one with security on and one with security off, so you can make clear comparisons of your observations.

Before carrying out any throughput measurements you should assess the channel busyness using a Channelizer Pro spectrum analyser. Chose the quietest channel available for your work. You need to comment in your results and discussion section the impact of interference and other Wi-Fi transmissions on the same channel.

Навички: Адміністрування мережі, Controller Area Network (CAN), Local Interconnect Network (LIN)

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Про роботодавця:
( 12 відгуки(-ів) ) New Delhi, India

ID Проекту: #25277925



Hello, We are a team of Network Engineers and we have previosly worked on OMNET++ and on WLAN projects. Please contact us to discuss more.

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I will take jperf and iperf captures and use inssider to check the least congested channel. First i will check the results with open SSID and other with WPA2-PSK I hope i can work on this project better as i have 5 y Більше

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