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OPNET based Wireless LAN Performance Improvisation
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 48 - Number 1 |
| Year of Publication: 2012 |
| Authors: Rajan Vohra, Ravinder Singh Sawhney, Gurpreet Singh Saini |
10.5120/7314-9912
|
Rajan Vohra, Ravinder Singh Sawhney, Gurpreet Singh Saini . OPNET based Wireless LAN Performance Improvisation. International Journal of Computer Applications. 48, 1 ( June 2012), 27-31. DOI=10.5120/7314-9912
Abstract
In order to analyze the performance of Wireless Local Area Networks (WLANs) effectively, it is important to identify those network settings that can cause the networks performance to go from good to poor. Low throughput, high packet loss rate, delayed round trip time (RTT), increased retransmissions, and increased collisions are the detrimental attributes to look for, when poor network performance is encountered. In this paper, our main focus is to analyze and evaluate the role of the media access delay as well as processing delay towards the performance of WLANs. The simulation tool OPNET has been used for fine- tuning the WLAN parameters and simulation demonstrate that WLAN performance can be enhanced by tuning different metrics such as buffer size, fragmentation threshold and request to send (RTS) thresholds. In this paper, we emphasized on buffer size and its subsequent effect on service quality. By varying the buffer size to a value other than specified in the standards, will reduce WLAN delay, media access delay with minutest changes observed in throughput.
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