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Paper Abstract and Keywords
Presentation 2016-12-22 16:25
A consideration on throughput improvement of p-persistent CSMA/CA
Yukiko Kan, Hiroshi Inai (Okayama Pref Univ) NS2016-140
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless LANs adopt the CSMA/CA as their random access method.
Although the CSMA/CA has a collision avoidance mechanism, the collision probability becomes high according to increase of competing terminals.
To reduce the collision probability in such circumstances, the p-persistent CSMA/CA has been introduced.
Under employment of the p-persistent CSMA/CA, upon being ready for transmission, a terminal sends a packet with probability p, otherwise it suspends the transmission.
In principle an optimal p maximizing the throughput can be calculated from the packet length and the number of competing terminals.
However since the number of competing terminals is hard to grasp in practice, an estimation mechanism is required.
Previously proposed mechanisms gradually decrease the estimated number of competing terminals from the maximum number (all the terminals) to one.
Due to the gradually decrease, in cases of a small number of competing terminals, they decrease the throughput.
In this paper, we propose an estimation mechanism which works well in such cases.
Keyword (in Japanese) (See Japanese page) 
(in English) p-persistent CSMA/CA / packet transmission probability / random access method / wireless LANs / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 382, NS2016-140, pp. 119-122, Dec. 2016.
Paper # NS2016-140 
Date of Issue 2016-12-14 (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 NS2016-140

Conference Information
Committee NS RCS  
Conference Date 2016-12-21 - 2016-12-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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 NS 
Conference Code 2016-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A consideration on throughput improvement of p-persistent CSMA/CA 
Sub Title (in English)  
Keyword(1) p-persistent CSMA/CA  
Keyword(2) packet transmission probability  
Keyword(3) random access method  
Keyword(4) wireless LANs  
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1st Author's Name Yukiko Kan  
1st Author's Affiliation Okayama Prefectural University (Okayama Pref Univ)
2nd Author's Name Hiroshi Inai  
2nd Author's Affiliation Okayama Prefectural University (Okayama Pref Univ)
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Speaker Author-2 
Date Time 2016-12-22 16:25:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2016-140 
Volume (vol) vol.116 
Number (no) no.382 
Page pp.119-122 
#Pages 4 
Date of Issue 2016-12-14 (NS) 

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