Efficient rate adaptation in IEEE 802.11 wireless networks
Thesis (M.Sc.)--Memorial University of Newfoundland, 2009. Computer Science Includes bibliographical references (leaves 68-74) IEEE 802.11 is a predominant technology in wireless networks. Though designed to extend local area networks, it has been extended beyond its original infrastructure scope. T...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/47489 2023-05-15T17:23:33+02:00 Efficient rate adaptation in IEEE 802.11 wireless networks Ngugi, Anne N. (Anne Njambi) Memorial University of Newfoundland. Dept. of Computer Science 2008 x, 76 leaves : ill. Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/47489 Eng eng Electronic Theses and Dissertations (8.50 MB) -- http://collections.mun.ca/PDFs/theses/Ngugi_Anne.pdf a3242051 http://collections.mun.ca/cdm/ref/collection/theses4/id/47489 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Data transmission systems IEEE 802.11 (Standard) Radio--Transmitters and transmission Wireless LANs Text Electronic thesis or dissertation 2008 ftmemorialunivdc 2015-08-06T19:21:57Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2009. Computer Science Includes bibliographical references (leaves 68-74) IEEE 802.11 is a predominant technology in wireless networks. Though designed to extend local area networks, it has been extended beyond its original infrastructure scope. Three medium sharing aspects must be considered to improve wireless networks throughput. These include higher data rate, power management and channel spatial reuse. -- This thesis focuses on the rate adaptation aspect of wireless networks. Though critical, IEEE 802.11 standards do not specify any rate adaptation mechanism which leaves it up to the wireless devices vendors to implement interfaces that utilize PHY multirate capability. A rate adaptation mechanism must accurately estimate the channel condition despite the presence of various dynamics caused by fading, mobility and hidden terminals, and effectively select the appropriate data rate. -- Utilizing the diverse information scope in literature, we propose hybrid rate adaptation schemes, DRA, DRALD and DRANLD, that draw channel quality information from both the sender and the receiver to effectively determine appropriate data rate. Extensive NS-2 simulations illustrate that these schemes are more adaptive to the dynamic channel conditions and their performance is better than their predecessors. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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Data transmission systems IEEE 802.11 (Standard) Radio--Transmitters and transmission Wireless LANs |
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Data transmission systems IEEE 802.11 (Standard) Radio--Transmitters and transmission Wireless LANs Ngugi, Anne N. (Anne Njambi) Efficient rate adaptation in IEEE 802.11 wireless networks |
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Data transmission systems IEEE 802.11 (Standard) Radio--Transmitters and transmission Wireless LANs |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2009. Computer Science Includes bibliographical references (leaves 68-74) IEEE 802.11 is a predominant technology in wireless networks. Though designed to extend local area networks, it has been extended beyond its original infrastructure scope. Three medium sharing aspects must be considered to improve wireless networks throughput. These include higher data rate, power management and channel spatial reuse. -- This thesis focuses on the rate adaptation aspect of wireless networks. Though critical, IEEE 802.11 standards do not specify any rate adaptation mechanism which leaves it up to the wireless devices vendors to implement interfaces that utilize PHY multirate capability. A rate adaptation mechanism must accurately estimate the channel condition despite the presence of various dynamics caused by fading, mobility and hidden terminals, and effectively select the appropriate data rate. -- Utilizing the diverse information scope in literature, we propose hybrid rate adaptation schemes, DRA, DRALD and DRANLD, that draw channel quality information from both the sender and the receiver to effectively determine appropriate data rate. Extensive NS-2 simulations illustrate that these schemes are more adaptive to the dynamic channel conditions and their performance is better than their predecessors. |
author2 |
Memorial University of Newfoundland. Dept. of Computer Science |
format |
Thesis |
author |
Ngugi, Anne N. (Anne Njambi) |
author_facet |
Ngugi, Anne N. (Anne Njambi) |
author_sort |
Ngugi, Anne N. (Anne Njambi) |
title |
Efficient rate adaptation in IEEE 802.11 wireless networks |
title_short |
Efficient rate adaptation in IEEE 802.11 wireless networks |
title_full |
Efficient rate adaptation in IEEE 802.11 wireless networks |
title_fullStr |
Efficient rate adaptation in IEEE 802.11 wireless networks |
title_full_unstemmed |
Efficient rate adaptation in IEEE 802.11 wireless networks |
title_sort |
efficient rate adaptation in ieee 802.11 wireless networks |
publishDate |
2008 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/47489 |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (8.50 MB) -- http://collections.mun.ca/PDFs/theses/Ngugi_Anne.pdf a3242051 http://collections.mun.ca/cdm/ref/collection/theses4/id/47489 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
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