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Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e

This thesis proposes an adaptive traffic prioritization algorithm over ad hoc network using IEEE 802.11e standard that defines a set of Quality of Service enhancements for wireless LAN applications through modifications to the Media Access Control (MAC) layer. The IEEE 802.11e standard aims to provi...

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Main Author: Anuar, Ammar
Format: Thesis
Language:English
English
Published: 2016
Subjects:
T Technology (General)
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utem.edu.my/id/eprint/18181/1/Adaptive%20Traffic%20Prioritization%20Algorithm%20Over%20Ad%20Hoc%20Network%20Using%20IEEE%20802.11e%2024%20Pages.pdf
http://eprints.utem.edu.my/id/eprint/18181/2/Adaptive%20Traffic%20Prioritization%20Algorithm%20Over%20Ad%20Hoc%20Network%20Using%20IEEE%20802.11e.pdf
http://eprints.utem.edu.my/id/eprint/18181/
https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=99994
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spelling my.utem.eprints.181812021-10-08T07:43:48Z http://eprints.utem.edu.my/id/eprint/18181/ Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e Anuar, Ammar T Technology (General) TK Electrical engineering. Electronics Nuclear engineering This thesis proposes an adaptive traffic prioritization algorithm over ad hoc network using IEEE 802.11e standard that defines a set of Quality of Service enhancements for wireless LAN applications through modifications to the Media Access Control (MAC) layer. The IEEE 802.11e standard aims to provide enhancements that allow traffic with specific requirements to be treated differently from normal traffic. Enhanced Distributed Channel Access (EDCA) is a fundamental and mandatory contention-based channel access method of IEEE 802.11e which delivers traffic based on differentiated Access Category (ACs). Each AC has its own queue and set of EDCA parameter values. Although IEEE 802.11e has been widely implemented in commercial hardware, the EDCA parameters are normally preset with some default values recommended by the standard. By default, the values of EDCA parameters are not open for changes. This has limited the performance as from literature review, a proper EDCA parameter manipulation will improve the network throughput performance. However, most existing research works on IEEE 802.11e EDCA parameter optimization are done either analytically or in simulated environments and hence are unable to provide its effectiveness in realistic scenarios. This is largely due to the several hurdles associated with real-life implementations which prohibit them to do so, such as hardware limitations, software restrictions, coding bugs in the wireless cards driver and so on.These challengess form part of the motivations behind this work. This thesis first investigates the impacts of EDCA parameters on the network performance and link conditions using open source software and commercially available hardware in ad hoc mode. An adaptive prioritization scheme (APS) is then proposed. The results obtained show that the proposed APS algorithm can improve the single-AC throughput performance up to 10.82% when compared to static EDCA. In dual-AC scenario, APS can improve the throughput performance up to 9.93% as compared to static EDCA, while another scheme in existing literature, R-AIFSN shows inconsistency in throughput performance. It is also found that the improvement is more significant in terms of the queue occupancy. 2016 Thesis NonPeerReviewed text en http://eprints.utem.edu.my/id/eprint/18181/1/Adaptive%20Traffic%20Prioritization%20Algorithm%20Over%20Ad%20Hoc%20Network%20Using%20IEEE%20802.11e%2024%20Pages.pdf text en http://eprints.utem.edu.my/id/eprint/18181/2/Adaptive%20Traffic%20Prioritization%20Algorithm%20Over%20Ad%20Hoc%20Network%20Using%20IEEE%20802.11e.pdf Anuar, Ammar (2016) Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e. Masters thesis, Universiti Teknikal Malaysia Melaka. https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=99994
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
English
topic T Technology (General)
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle T Technology (General)
TK Electrical engineering. Electronics Nuclear engineering
Anuar, Ammar
Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e
description This thesis proposes an adaptive traffic prioritization algorithm over ad hoc network using IEEE 802.11e standard that defines a set of Quality of Service enhancements for wireless LAN applications through modifications to the Media Access Control (MAC) layer. The IEEE 802.11e standard aims to provide enhancements that allow traffic with specific requirements to be treated differently from normal traffic. Enhanced Distributed Channel Access (EDCA) is a fundamental and mandatory contention-based channel access method of IEEE 802.11e which delivers traffic based on differentiated Access Category (ACs). Each AC has its own queue and set of EDCA parameter values. Although IEEE 802.11e has been widely implemented in commercial hardware, the EDCA parameters are normally preset with some default values recommended by the standard. By default, the values of EDCA parameters are not open for changes. This has limited the performance as from literature review, a proper EDCA parameter manipulation will improve the network throughput performance. However, most existing research works on IEEE 802.11e EDCA parameter optimization are done either analytically or in simulated environments and hence are unable to provide its effectiveness in realistic scenarios. This is largely due to the several hurdles associated with real-life implementations which prohibit them to do so, such as hardware limitations, software restrictions, coding bugs in the wireless cards driver and so on.These challengess form part of the motivations behind this work. This thesis first investigates the impacts of EDCA parameters on the network performance and link conditions using open source software and commercially available hardware in ad hoc mode. An adaptive prioritization scheme (APS) is then proposed. The results obtained show that the proposed APS algorithm can improve the single-AC throughput performance up to 10.82% when compared to static EDCA. In dual-AC scenario, APS can improve the throughput performance up to 9.93% as compared to static EDCA, while another scheme in existing literature, R-AIFSN shows inconsistency in throughput performance. It is also found that the improvement is more significant in terms of the queue occupancy.
format Thesis
author Anuar, Ammar
author_facet Anuar, Ammar
author_sort Anuar, Ammar
title Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e
title_short Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e
title_full Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e
title_fullStr Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e
title_full_unstemmed Adaptive Traffic Prioritization Algorithm Over Ad Hoc Network Using IEEE 802.11e
title_sort adaptive traffic prioritization algorithm over ad hoc network using ieee 802.11e
publishDate 2016
url http://eprints.utem.edu.my/id/eprint/18181/1/Adaptive%20Traffic%20Prioritization%20Algorithm%20Over%20Ad%20Hoc%20Network%20Using%20IEEE%20802.11e%2024%20Pages.pdf
http://eprints.utem.edu.my/id/eprint/18181/2/Adaptive%20Traffic%20Prioritization%20Algorithm%20Over%20Ad%20Hoc%20Network%20Using%20IEEE%20802.11e.pdf
http://eprints.utem.edu.my/id/eprint/18181/
https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=99994
_version_ 1715193889396097024
score 13.211869

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