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Paper Abstract and Keywords
Presentation 2012-12-14 13:10
A Study on Spectrum Sharing with IEEE802.11 Users by Minimum Contention Window Size Selection Using Channel Occupancy Rate Information
Masaki Morita, Kenta Umebayashi, Yasuo Suzuki (TUAT) RCS2012-233
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we investigated a spectrum sharing technique based on Channel Occupancy Rate (COR) information of the Primary Users (PUs)
by the Secondary Users (SUs).
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Both PUs and SUs perform based on the IEEE 802.11 MAC protocol, i.e., CSMA/CA.
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COR indicates the temporal channel occupancy and it is approximately equivalent to the throughput performance.
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Thus, a purpose of the spectrum sharing technique is the maximization of SU COR under a constraint of PU COR protection.
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In a related work, an optimum minimum CW based on COR has been derived analytically.
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In the analysis it assume no collision, however this is not practical assumption and in the case of higher collision probability this analysis is not valid.
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Therefore, in this paper, we propose the minimum CW setting method based on estimated COR and collision probability.
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For the collision probability estimation, we introduce two methods.
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In the first one, it assumes that the PU collision can be detected by SU perfectly.
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In the second one, SU can detect a collision but not possible to recognize either a PU collision or not.
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By computer simulations, we have shown that the proposed method can protect PUs even if there are multiple PUs.
Keyword (in Japanese) (See Japanese page) 
(in English) Temporal Spectrum sharing / Channel Occupancy Rate / Minimum Contention Window size / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 351, RCS2012-233, pp. 297-302, Dec. 2012.
Paper # RCS2012-233 
Date of Issue 2012-12-06 (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 RCS2012-233

Conference Information
Committee NS RCS  
Conference Date 2012-12-13 - 2012-12-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To RCS 
Conference Code 2012-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Spectrum Sharing with IEEE802.11 Users by Minimum Contention Window Size Selection Using Channel Occupancy Rate Information 
Sub Title (in English)  
Keyword(1) Temporal Spectrum sharing  
Keyword(2) Channel Occupancy Rate  
Keyword(3) Minimum Contention Window size  
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1st Author's Name Masaki Morita  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
3rd Author's Name Yasuo Suzuki  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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Speaker Author-1 
Date Time 2012-12-14 13:10:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2012-233 
Volume (vol) vol.112 
Number (no) no.351 
Page pp.297-302 
#Pages 6 
Date of Issue 2012-12-06 (RCS) 

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