Cover Image

Study of enhanced DCF (EDCF) in multimedia application

IEEE 802.11e Medium Access Control (MAC) is an emerging supplement to the IEEE 802.11 Wireless Local Area Network (WLAN) standard to support Quality-of-Service (QOS). The 802.11e MAC is based on both centrally-controlled and contention-based channel accesses. This project is aimed towards evaluating...

Full description

Saved in:
Bibliographic Details
Main Author: Ismail, Ismahani
Format: Thesis
Language:English
Published: 2005
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/5308/1/IsmahaniIsmailMFKE2005.pdf
http://eprints.utm.my/id/eprint/5308/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.5308
record_format eprints
spelling my.utm.53082018-02-28T08:57:11Z http://eprints.utm.my/id/eprint/5308/ Study of enhanced DCF (EDCF) in multimedia application Ismail, Ismahani TK Electrical engineering. Electronics Nuclear engineering IEEE 802.11e Medium Access Control (MAC) is an emerging supplement to the IEEE 802.11 Wireless Local Area Network (WLAN) standard to support Quality-of-Service (QOS). The 802.11e MAC is based on both centrally-controlled and contention-based channel accesses. This project is aimed towards evaluating the contention-based channel access mechanism, called Enhanced Distributed Coordination Function (EDCF), in comparison with the 802.11 legacy MAC, Distributed Coordination Function. Then, by using EDCF model, the acceptable number of streams for traffic type individually and combination of all traffics are determined based on ITU-T requirements. Three different types of traffic are considered namely, voice, video and data. The evaluation was done using ns-2 simulator (version 2.26) running on Linux Fedora Core 2. The metrics used in the evaluation are throughput (Byte), delay (sec) and packet loss (%). Depending on graphs of these three metrics, the performance of EDCF and DCF are evaluated, and also the numbers of stream that fulfil the ITU-T requirements are determined. Through this simulation study, a summary can be made of that EDCF can provide differentiated channel access for different traffic types. Simulation results show that EDCF performs better performance than legacy DCF. Depending on ITU-T requirements especially for delay and packet loss, the acceptable number of streams both for traffic type individually and combination of all traffics type can be determined under EDCF model. 2005-03 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/5308/1/IsmahaniIsmailMFKE2005.pdf Ismail, Ismahani (2005) Study of enhanced DCF (EDCF) in multimedia application. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Ismail, Ismahani
Study of enhanced DCF (EDCF) in multimedia application
description IEEE 802.11e Medium Access Control (MAC) is an emerging supplement to the IEEE 802.11 Wireless Local Area Network (WLAN) standard to support Quality-of-Service (QOS). The 802.11e MAC is based on both centrally-controlled and contention-based channel accesses. This project is aimed towards evaluating the contention-based channel access mechanism, called Enhanced Distributed Coordination Function (EDCF), in comparison with the 802.11 legacy MAC, Distributed Coordination Function. Then, by using EDCF model, the acceptable number of streams for traffic type individually and combination of all traffics are determined based on ITU-T requirements. Three different types of traffic are considered namely, voice, video and data. The evaluation was done using ns-2 simulator (version 2.26) running on Linux Fedora Core 2. The metrics used in the evaluation are throughput (Byte), delay (sec) and packet loss (%). Depending on graphs of these three metrics, the performance of EDCF and DCF are evaluated, and also the numbers of stream that fulfil the ITU-T requirements are determined. Through this simulation study, a summary can be made of that EDCF can provide differentiated channel access for different traffic types. Simulation results show that EDCF performs better performance than legacy DCF. Depending on ITU-T requirements especially for delay and packet loss, the acceptable number of streams both for traffic type individually and combination of all traffics type can be determined under EDCF model.
format Thesis
author Ismail, Ismahani
author_facet Ismail, Ismahani
author_sort Ismail, Ismahani
title Study of enhanced DCF (EDCF) in multimedia application
title_short Study of enhanced DCF (EDCF) in multimedia application
title_full Study of enhanced DCF (EDCF) in multimedia application
title_fullStr Study of enhanced DCF (EDCF) in multimedia application
title_full_unstemmed Study of enhanced DCF (EDCF) in multimedia application
title_sort study of enhanced dcf (edcf) in multimedia application
publishDate 2005
url http://eprints.utm.my/id/eprint/5308/1/IsmahaniIsmailMFKE2005.pdf
http://eprints.utm.my/id/eprint/5308/
_version_ 1643644288060358656
score 13.211869

Similar Items