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Paper Abstract and Keywords
Presentation 2012-07-19 15:35
Cognitive Radio-Aware Transport Protocol for Mobile Ad Hoc Network
Shun Koba, Kazuya Tsukamoto, Masato Tsuru, Yuji Oie (Kyutech) NS2012-46
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, to provide efficient multi-hop communication in Mobile Ad-hoc Network (MANET), we present a new TCP (TCP CoBA) that can be aware of various effects caused by a cognitive radio technology. The cognitive radio technology inherently causes frequent communication interruptions at each node due to spectrum sensing. Since traditional TCP determines the amount of transmission data between end-to-end nodes only, the abrupt changes at interior nodes of the MANET significantly degrades TCP communication performance. Therefore, TCP CRAHN focusing on an environment where nodes with the cognitive radio technology construct a MANET has been proposed. In this paper, we show that its communication quality is drastically degraded due to both long communication interruption with the spectrum sensing and drastic changes in communication characteristics such as bandwidth and delay as a result of channel switching. To solve these issues, TCP CoBA (1) freezes RTO timer during the sensing period and (2) updates a window size with consideration of available buffer spaces at relay nodes. Furthermore, we separate spectrum sensing and data transmission processes into two dedicated interfaces, respectively. Through simulation, we show that the TCP CoBA improves the throughput performance up to 260\%, compared with that of traditional TCP.
Keyword (in Japanese) (See Japanese page) 
(in English) Transport Protocol / Cognitive Radio / Mobile Ad-hoc Network / Multi-hop communication / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 131, NS2012-46, pp. 7-12, July 2012.
Paper # NS2012-46 
Date of Issue 2012-07-12 (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 NS2012-46

Conference Information
Committee RCS NS USN  
Conference Date 2012-07-19 - 2012-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Iwate Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Fixed/Wireless Network, Hand Over, Relay, Distributed MIMO, Mobile Ad-hoc Network, Ubiquitous Sensor Network, etc. 
Paper Information
Registration To NS 
Conference Code 2012-07-RCS-NS-USN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Cognitive Radio-Aware Transport Protocol for Mobile Ad Hoc Network 
Sub Title (in English)  
Keyword(1) Transport Protocol  
Keyword(2) Cognitive Radio  
Keyword(3) Mobile Ad-hoc Network  
Keyword(4) Multi-hop communication  
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1st Author's Name Shun Koba  
1st Author's Affiliation Kyushu Institute of Technology (Kyutech)
2nd Author's Name Kazuya Tsukamoto  
2nd Author's Affiliation Kyushu Institute of Technology (Kyutech)
3rd Author's Name Masato Tsuru  
3rd Author's Affiliation Kyushu Institute of Technology (Kyutech)
4th Author's Name Yuji Oie  
4th Author's Affiliation Kyushu Institute of Technology (Kyutech)
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Speaker Author-1 
Date Time 2012-07-19 15:35:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2012-46 
Volume (vol) vol.112 
Number (no) no.131 
Page pp.7-12 
#Pages 6 
Date of Issue 2012-07-12 (NS) 

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