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Paper Abstract and Keywords
Presentation 2016-01-21 14:05
A technique to overcome delay spikes for unmanned vehicle control over mobile networks
Masaki Ogura, Ryohei Nakamura, Hisaya Hadama (NDA) CS2015-79
Abstract (in Japanese) (See Japanese page) 
(in English) vehicles (UVs) are expected to be useful tools in various fields, and their applications are widely spreading to diverse areas. Remote-controlled UVs need reliable and small delay communication links for transmitting various signals between the UVs and control stations. We think that a mobile network, which is widely available for mobile phone communications with an affordable cost, is a potential candidate to provide such a communication link. To realize it, we have to overcome degradation in communication quality of IP packet transmissions over a mobile network. We focus on video signal transmission from a UV to a control station. Video transmission quality suffers degradation by both transmission delay and loss of IP packets. Especially, delay spikes which often occur in mobile networks significantly disturb UV controls. Because a delay spike causes freeze of the moving video by interrupting continuous transmission of IP packets of a video signal. In this paper, we propose a technique to overcome delay spikes. The technique uses multiple mobile networks and adaptively switches a video stream from a mobile network to other one. We carried out video transmission experiments using two real LTE networks. Our result shows effectiveness of the proposal to reduce of freezing frequency of a video.
Keyword (in Japanese) (See Japanese page) 
(in English) Unmanned Vehicle control / remote control / real-time communication / mobile networks / delay spikes / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 406, CS2015-79, pp. 37-42, Jan. 2016.
Paper # CS2015-79 
Date of Issue 2016-01-14 (CS) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CS2015-79

Conference Information
Committee CS OCS  
Conference Date 2016-01-21 - 2016-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagoshima University, Korimoto Campus, Inamori Auditorium 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Core/Metro Systems, Submarine Transmission Systems, Optical Access Systems/Next Generation PON, Ethernet, Optical Transport Network (OTN), Transmission Monitoring and Supervisory Control, Optical Transmission System Design/Tools, Mobile Optical Network 
Paper Information
Registration To CS 
Conference Code 2016-01-CS-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A technique to overcome delay spikes for unmanned vehicle control over mobile networks 
Sub Title (in English)  
Keyword(1) Unmanned Vehicle control  
Keyword(2) remote control  
Keyword(3) real-time communication  
Keyword(4) mobile networks  
Keyword(5) delay spikes  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masaki Ogura  
1st Author's Affiliation National Defense Academy of Japan (NDA)
2nd Author's Name Ryohei Nakamura  
2nd Author's Affiliation National Defense Academy of Japan (NDA)
3rd Author's Name Hisaya Hadama  
3rd Author's Affiliation National Defense Academy of Japan (NDA)
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Speaker Author-1 
Date Time 2016-01-21 14:05:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2015-79 
Volume (vol) vol.115 
Number (no) no.406 
Page pp.37-42 
#Pages 6 
Date of Issue 2016-01-14 (CS) 

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