Date of Award

Fall 10-2013

Document Type

Thesis

Degree Name

Bachelor Degree

Department

Computer Science

First Advisor

Petrit Shala

Language

Albanian

Abstract

Today wireless internet access, especially the IEEE 802.11 family WLANs, has become widely available. Public hotspots emerge everywhere, from hotels to airports. In addition, private usage also grows rapidly due to the offered convenience.

The current WLAN standard 802.11b does not offer service differentiation. Therefore the quality of an offered service is often not guaranteed. However, a new standard 802.11e has been proposed to improve the quality of service provisioning. This new standard introduces different Traffic Classes for different services and can prioritize the traffic accordingly.

This report covers both the 802.11b and the 802.11e WLANs. In the first place it provides investigation on file transfer times with TCP over 802.11b. This includes both modelling and dynamic simulations. These models are shown to give accurate results for large files. The second part focuses on 802.11e. The differentiation mechanism as well as its performance with realistic service settings is examined through simulation studies. The results provide some important characteristics of the 802.11e parameters and advices for tuning an 802.11e network.

DOI

10.33107/ubt-etd.2013.1592

Download

Share

COinS