Victor Kulgachev
ABSTRACT
Wireless Networks based on IEEE 802.11 standard have become very popular and important in today's business world and it is crucial for the companies to make sure their networks perform at the best possible rate. In this paper, we demonstrate a way for evaluating the performance of IEEE 802.11 wireless networks using OPNET Modeler. This paper includes a description of the current trend of the wireless networks, overview of the 802.11 protocols, the network parameters (i.e., measurement units) we used to assess the performance of a particular network, and the steps performed to carry out the simulation with the description of the results. Results of three simulations are presented. The first simulation involves one access point and twelve mobile nodes all generating traffic in 802.11g environment. For the second simulation, 4 nodes have been changed to use 802.11b protocol instead of 802.11g. The third simulation involves 802.11b access point as well as 802.11b clients/nodes to generate traffic to 11b access point. The simulation results show that performance is better when using a pure 802.11g network or a network that uses different access point to support different 802.11 protocols.
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Index Terms
- 802.11 networks performance evaluation using OPNET
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