Paper Abstract and Keywords |
Presentation |
2008-03-07 11:05
Dynamic Contention Window Control Mechanism in IEEE 802.11e Wireless LANs Hirantha Abeysekera, Takahiro Matsuda, Tetsuya Takine (Osaka Univ.) NS2007-189 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In IEEE 802.11 MAC protocol, access points (APs) are given the same authority as wireless terminals in terms of acquiring the wireless link, even if they aggregate several downlink flows. This feature leads to a serious throughput degradation of downlink flows comparing to the uplink flows. In this paper, we propose a window control mechanism for IEEE 802.11e EDCA-based WLANs, in order to improve the throughput of low-priority downlink flows. The proposed scheme first calculates the contention window size of the low-priority access category at APs according to the number of downlink flows. It then calculates contention window sizes of high-priority access categories in order to support QoS guarantees for high-priority traffic such as voice and video. We evaluate the proposed scheme with simulation experiments. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
IEEE 802.11e / EDCA / wireless LAN / contention window / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 524, NS2007-189, pp. 319-324, March 2008. |
Paper # |
NS2007-189 |
Date of Issue |
2008-02-28 (NS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
NS2007-189 |
Conference Information |
Committee |
NS IN |
Conference Date |
2008-03-06 - 2008-03-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Bankoku Shinryokan |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General issues |
Paper Information |
Registration To |
NS |
Conference Code |
2008-03-NS-IN |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Dynamic Contention Window Control Mechanism in IEEE 802.11e Wireless LANs |
Sub Title (in English) |
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Keyword(1) |
IEEE 802.11e |
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EDCA |
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wireless LAN |
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contention window |
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1st Author's Name |
Hirantha Abeysekera |
1st Author's Affiliation |
Osaka University (Osaka Univ.) |
2nd Author's Name |
Takahiro Matsuda |
2nd Author's Affiliation |
Osaka University (Osaka Univ.) |
3rd Author's Name |
Tetsuya Takine |
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Osaka University (Osaka Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-03-07 11:05:00 |
Presentation Time |
20 minutes |
Registration for |
NS |
Paper # |
NS2007-189 |
Volume (vol) |
vol.107 |
Number (no) |
no.524 |
Page |
pp.319-324 |
#Pages |
6 |
Date of Issue |
2008-02-28 (NS) |
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