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Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks. / Kenneth Sorle Nwizege

Swansea University Author: Kenneth Sorle Nwizege

Abstract

Multimedia application is currently making much impact in this technological era. It has been thekey driving force behind the convergence of fixed, mobile and IP networks. Furthermore, real-timeapplications are making head way in vehicular networks, mission critical applications which usededicated s...

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Published: 2010
Institution: Swansea University
Degree level: Master of Philosophy
Degree name: M.Phil
URI: https://cronfa.swan.ac.uk/Record/cronfa42850
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2018-08-31T17:07:32.2958128</datestamp><bib-version>v2</bib-version><id>42850</id><entry>2018-08-02</entry><title>Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.</title><swanseaauthors><author><sid>ebd077de429474617cda1f0bde7e80b2</sid><ORCID>NULL</ORCID><firstname>Kenneth Sorle</firstname><surname>Nwizege</surname><name>Kenneth Sorle Nwizege</name><active>true</active><ethesisStudent>true</ethesisStudent></author></swanseaauthors><date>2018-08-02</date><abstract>Multimedia application is currently making much impact in this technological era. It has been thekey driving force behind the convergence of fixed, mobile and IP networks. Furthermore, real-timeapplications are making head way in vehicular networks, mission critical applications which usededicated short range communications (DSRC). 802.l i e standards support quality of services(QoS) guarantees in these applications. This is opposed to the problem with 802.11 legacy whichis based on distributed coordination function (DCF), and its inability to prioritized applications forservice differentiation. Simulation was done on various 802.l i e networks which use enhancedDCF (EDCF). In these simulations, it was observed that controlling low priority applicationsenhances the effectiveness of high priority applications. Different MAC and traffic generationparameters were used in various scenarios. It was actually observed that high priority applicationshave greater impacts on the performance of the network and hence performs better when itcomes to delay and throughput requirements. Even when the number of high priority applicationswere reduced, the results obtained was still able to satisfy QoS requirements for each traffic type.Results for different scenarios were taken and discussed. Also, differentiated values of delay,throughput and packet loss were recorded when same and different values of MAC and trafficgeneration parameters were used. In all results the International Telecommunications Union (ITU-T) values of these metrics parameters were kept low. These make the network design suitable forroad safety application where very low delay is required for emergency messages and tolerabledelay in routine messages. The results obtained show th at, this network can be applicable inroad safety, simply because of the low delay, and low loss which implies , messages to cars canbe successfully delivered and also good throughput. 802.11 legacy standard lacks servicedifferentiation that limits QoS support for real-time applications. These simulations were able tohandle the drawback associated with this standard and prefer a better standard which is 802.l i ethat provides differentiated access to the metrics that was used in analyzing QoS in this research.</abstract><type>E-Thesis</type><journal/><journalNumber></journalNumber><paginationStart/><paginationEnd/><publisher/><placeOfPublication/><isbnPrint/><issnPrint/><issnElectronic/><keywords>Multimedia, technology, vehicles</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2010</publishedYear><publishedDate>2010-12-31</publishedDate><doi/><url/><notes/><college>COLLEGE NANME</college><department>Computer Science</department><CollegeCode>COLLEGE CODE</CollegeCode><institution>Swansea University</institution><degreelevel>Master of Philosophy</degreelevel><degreename>M.Phil</degreename><apcterm/><lastEdited>2018-08-31T17:07:32.2958128</lastEdited><Created>2018-08-02T16:24:30.6325964</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Mathematics and Computer Science - Computer Science</level></path><authors><author><firstname>Kenneth Sorle</firstname><surname>Nwizege</surname><orcid>NULL</orcid><order>1</order></author></authors><documents><document><filename>0042850-02082018162526.pdf</filename><originalFilename>10821240.pdf</originalFilename><uploaded>2018-08-02T16:25:26.7770000</uploaded><type>Output</type><contentLength>6972088</contentLength><contentType>application/pdf</contentType><version>E-Thesis</version><cronfaStatus>true</cronfaStatus><embargoDate>2018-08-02T16:25:26.7770000</embargoDate><copyrightCorrect>false</copyrightCorrect></document></documents><OutputDurs/></rfc1807>
spelling 2018-08-31T17:07:32.2958128 v2 42850 2018-08-02 Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks. ebd077de429474617cda1f0bde7e80b2 NULL Kenneth Sorle Nwizege Kenneth Sorle Nwizege true true 2018-08-02 Multimedia application is currently making much impact in this technological era. It has been thekey driving force behind the convergence of fixed, mobile and IP networks. Furthermore, real-timeapplications are making head way in vehicular networks, mission critical applications which usededicated short range communications (DSRC). 802.l i e standards support quality of services(QoS) guarantees in these applications. This is opposed to the problem with 802.11 legacy whichis based on distributed coordination function (DCF), and its inability to prioritized applications forservice differentiation. Simulation was done on various 802.l i e networks which use enhancedDCF (EDCF). In these simulations, it was observed that controlling low priority applicationsenhances the effectiveness of high priority applications. Different MAC and traffic generationparameters were used in various scenarios. It was actually observed that high priority applicationshave greater impacts on the performance of the network and hence performs better when itcomes to delay and throughput requirements. Even when the number of high priority applicationswere reduced, the results obtained was still able to satisfy QoS requirements for each traffic type.Results for different scenarios were taken and discussed. Also, differentiated values of delay,throughput and packet loss were recorded when same and different values of MAC and trafficgeneration parameters were used. In all results the International Telecommunications Union (ITU-T) values of these metrics parameters were kept low. These make the network design suitable forroad safety application where very low delay is required for emergency messages and tolerabledelay in routine messages. The results obtained show th at, this network can be applicable inroad safety, simply because of the low delay, and low loss which implies , messages to cars canbe successfully delivered and also good throughput. 802.11 legacy standard lacks servicedifferentiation that limits QoS support for real-time applications. These simulations were able tohandle the drawback associated with this standard and prefer a better standard which is 802.l i ethat provides differentiated access to the metrics that was used in analyzing QoS in this research. E-Thesis Multimedia, technology, vehicles 31 12 2010 2010-12-31 COLLEGE NANME Computer Science COLLEGE CODE Swansea University Master of Philosophy M.Phil 2018-08-31T17:07:32.2958128 2018-08-02T16:24:30.6325964 Faculty of Science and Engineering School of Mathematics and Computer Science - Computer Science Kenneth Sorle Nwizege NULL 1 0042850-02082018162526.pdf 10821240.pdf 2018-08-02T16:25:26.7770000 Output 6972088 application/pdf E-Thesis true 2018-08-02T16:25:26.7770000 false
title Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
spellingShingle Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
Kenneth Sorle Nwizege
title_short Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
title_full Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
title_fullStr Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
title_full_unstemmed Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
title_sort Investigation of quality of services (QoS) support for real-time or mission critical services over IEEE 802.11e wireless networks.
author_id_str_mv ebd077de429474617cda1f0bde7e80b2
author_id_fullname_str_mv ebd077de429474617cda1f0bde7e80b2_***_Kenneth Sorle Nwizege
author Kenneth Sorle Nwizege
author2 Kenneth Sorle Nwizege
format E-Thesis
publishDate 2010
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Mathematics and Computer Science - Computer Science{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Mathematics and Computer Science - Computer Science
document_store_str 1
active_str 0
description Multimedia application is currently making much impact in this technological era. It has been thekey driving force behind the convergence of fixed, mobile and IP networks. Furthermore, real-timeapplications are making head way in vehicular networks, mission critical applications which usededicated short range communications (DSRC). 802.l i e standards support quality of services(QoS) guarantees in these applications. This is opposed to the problem with 802.11 legacy whichis based on distributed coordination function (DCF), and its inability to prioritized applications forservice differentiation. Simulation was done on various 802.l i e networks which use enhancedDCF (EDCF). In these simulations, it was observed that controlling low priority applicationsenhances the effectiveness of high priority applications. Different MAC and traffic generationparameters were used in various scenarios. It was actually observed that high priority applicationshave greater impacts on the performance of the network and hence performs better when itcomes to delay and throughput requirements. Even when the number of high priority applicationswere reduced, the results obtained was still able to satisfy QoS requirements for each traffic type.Results for different scenarios were taken and discussed. Also, differentiated values of delay,throughput and packet loss were recorded when same and different values of MAC and trafficgeneration parameters were used. In all results the International Telecommunications Union (ITU-T) values of these metrics parameters were kept low. These make the network design suitable forroad safety application where very low delay is required for emergency messages and tolerabledelay in routine messages. The results obtained show th at, this network can be applicable inroad safety, simply because of the low delay, and low loss which implies , messages to cars canbe successfully delivered and also good throughput. 802.11 legacy standard lacks servicedifferentiation that limits QoS support for real-time applications. These simulations were able tohandle the drawback associated with this standard and prefer a better standard which is 802.l i ethat provides differentiated access to the metrics that was used in analyzing QoS in this research.
published_date 2010-12-31T03:53:46Z
_version_ 1763752675000713216
score 11.012678

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