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Paper Abstract and Keywords
Presentation 2009-07-17 16:40
Improving Performance of WLAN with Joint AP Selection and Power Control
Suhua Tang, Hiroyuki Yomo, Mehdad N. Shirazi, Tetsuro Ueda, Ryu Miura, Sadao Obana (ATR) RCS2009-72
Abstract (in Japanese) (See Japanese page) 
(in English) As more and more access points (AP) are deployed to enable seamless coverage in a WLAN system, mobile nodes often have a chance to select a suitable AP. Meanwhile APs sharing the same channel are facing co-channel interference. Under the assumption that APs and nodes cooperate with each other, in this paper, we study how to perform joint AP selection and power control. APs measure channel cost and nodes measure link quality. Each node selects an AP that maximizes its potential throughput (calculated from channel cost and link quality). The relationship between estimated and measured channel costs is learned and used in estimating channel cost under new and unemployed power levels. Then, APs choose a power level that achieves the best tradeoff between self-cell channel cost and interference to adjacent cells. Nodes respond to the power changes and re-select an AP if necessary. The initial simulation results confirmed the effectiveness of the proposed schemes.
Keyword (in Japanese) (See Japanese page) 
(in English) AP selection / Transmit power control / channel utinization / potential throughput / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 130, RCS2009-72, pp. 113-118, July 2009.
Paper # RCS2009-72 
Date of Issue 2009-07-09 (RCS) 
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 RCS2009-72

Conference Information
Committee NS RCS  
Conference Date 2009-07-16 - 2009-07-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University (Hokkaido) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Fixed/Wireless Network, Hand Over, Distributed MIMO, Mobile Ad-hoc Network 
Paper Information
Registration To RCS 
Conference Code 2009-07-NS-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving Performance of WLAN with Joint AP Selection and Power Control 
Sub Title (in English)  
Keyword(1) AP selection  
Keyword(2) Transmit power control  
Keyword(3) channel utinization  
Keyword(4) potential throughput  
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Keyword(6)  
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1st Author's Name Suhua Tang  
1st Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
2nd Author's Name Hiroyuki Yomo  
2nd Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
3rd Author's Name Mehdad N. Shirazi  
3rd Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
4th Author's Name Tetsuro Ueda  
4th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
5th Author's Name Ryu Miura  
5th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
6th Author's Name Sadao Obana  
6th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
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Speaker Author-1 
Date Time 2009-07-17 16:40:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2009-72 
Volume (vol) vol.109 
Number (no) no.130 
Page pp.113-118 
#Pages 6 
Date of Issue 2009-07-09 (RCS) 

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