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Paper Abstract and Keywords
Presentation 2014-03-14 15:50
Early Re-transmission for Improving TCP Goodput over Ad Hoc Networks
Tomoya Ohara, Yasushi Wakahara (Univ. of Tokyo) MoNA2013-76
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the expectation of networks for inter-vehicle communication, the utilization for natural disasters relief etc. have widened the applications of ad hoc networks. When a reliable communication is required under a variety of such a network, TCP is to be used. However, it is well known that the goodput of TCP degrades significantly in ad hoc networks. In ad hoc networks, a route is likely to change because of link breakage by node mobility, and there will be frequent packet collisions in multi-hop wireless communication. This leads to the misjudgment of congestion by TCP, and as the result, there will be inappropriate RTO(timeout) to decrease its goodput. Therefore, we propose early route re-setup and early packet re-transmission, to improve the goodput by avoiding inappropriate RTO. By some simulation experiments, we adjust the parameters of proposed method, and demonstrate the effectiveness of the proposal in suppressing the decrease in the goodput.
Keyword (in Japanese) (See Japanese page) 
(in English) Ad Hoc Networks / TCP / Goodput / RTO / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 495, MoNA2013-76, pp. 119-124, March 2014.
Paper # MoNA2013-76 
Date of Issue 2014-03-07 (MoNA) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Conference Date 2014-03-14 - 2014-03-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Keio Univ. (Hiyoshi Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Applications, Ubiquitous Services, Mobile Communication, Ad hoc network, Next Generation Wireless Technologies, Field Sensing, etc. 
Paper Information
Registration To MoNA 
Conference Code 2014-03-MoNA-MBL-UBI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Early Re-transmission for Improving TCP Goodput over Ad Hoc Networks 
Sub Title (in English)  
Keyword(1) Ad Hoc Networks  
Keyword(2) TCP  
Keyword(3) Goodput  
Keyword(4) RTO  
1st Author's Name Tomoya Ohara  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Yasushi Wakahara  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Date Time 2014-03-14 15:50:00 
Presentation Time 25 
Registration for MoNA 
Paper # IEICE-MoNA2013-76 
Volume (vol) IEICE-113 
Number (no) no.495 
Page pp.119-124 
#Pages IEICE-6 
Date of Issue IEICE-MoNA-2014-03-07 

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