Modeling of Heterogeneous WLAN Based on Traffic Application

Abstract

inherently, the negative effect of parameters of interest like: low bit rate, speed loss, packet drop, bandwidth congestion, and decrease in signal strength are latent in nature. These obviously affect the behavioral attitude of a network system and those affected areas are to be monitored and therefore be reduced even though, these factors may not be completely eliminated. No doubt that the performance of the wireless local area network (WLAN) technology has been greatly affect by these retarded factors. Options of total elimination of these factors are almost impossible, but then, this study will greatly reveal the negative effects, posed by these undesirable factors. In the light of these, three different WLAN technology scenarios were modeled and simulated and parameters of concern include: delay (sec), load (bits/sec), and throughput (bits/sec). The file transfer protocol (FTP) as the traffic application was used to administer the effect of the stated factors on the each WLAN of different scenarios. Also, the results obtained showed: more delay, minimum throughput, and minimum load occurred in a scenario with the highest number of nodes. Besides, if factors like: distance, interference, signal sharing, and other physical obstructions between the devices were considered, better results would be obtained.