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Paper Abstract and Keywords
Presentation 2018-08-23 16:30
[Invited Talk] A predictive control method for a remote control system through a network with delay fluctuation
Hiroshi Yoshida, Shinya Yasuda, Taichi Kumagai (NEC Corp.) CQ2018-50
Abstract (in Japanese) (See Japanese page) 
(in English) Under the concept of Internet of Things (IoT), various machines are beginning to be controlled remotely through the Internet and wireless IP networks.However, such an IP packet exchange network brings about large time delay fluctuation due to the nature of its packet queue. The delay is called dead time in control theory and makes it difficult to stabilize remote control.State-predictive control is effective for control systems containing dead time. The state-predictive control predicts the future state that the control input will arrive at the target, and calculates a control input on the basis of the predicted state. However, the conventional state-predictive controls cannot deal with the remote control systems through IP networks that have large delay fluctuation. This is because their prediction horizon (supposed dead time) is preliminarily set to a fixed value, which makes the predicted state different from the actual one. In this paper, we propose a novel state-predictive control that adjusts the prediction horizon dynamically on the basis of a real-time prediction of the time-varying delay. A simulation using actual delay data obtained on a WLAN network shows that the proposed method improves the stability and robustness of remote control through a network that has large delay fluctuation.
Keyword (in Japanese) (See Japanese page) 
(in English) State-Predictive Control / Delay / Jitter / Dead Time / Remote Control / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 192, CQ2018-50, pp. 23-27, Aug. 2018.
Paper # CQ2018-50 
Date of Issue 2018-08-16 (CQ) 
ISSN 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 CQ2018-50

Conference Information
Committee CQ  
Conference Date 2018-08-23 - 2018-08-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Ritsumeikan Univ. Biwako-Kusatsu Campus (BKC) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) IoT/M2M, Wireless Communication, QoS and QoE in Wireless Communication, Wireless Resource Allocation, Wireless Transmission Quality, Cross layer Technology, Ad-hoc Network, etc. 
Paper Information
Registration To CQ 
Conference Code 2018-08-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A predictive control method for a remote control system through a network with delay fluctuation 
Sub Title (in English)  
Keyword(1) State-Predictive Control  
Keyword(2) Delay  
Keyword(3) Jitter  
Keyword(4) Dead Time  
Keyword(5) Remote Control  
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1st Author's Name Hiroshi Yoshida  
1st Author's Affiliation NEC Corporation (NEC Corp.)
2nd Author's Name Shinya Yasuda  
2nd Author's Affiliation NEC Corporation (NEC Corp.)
3rd Author's Name Taichi Kumagai  
3rd Author's Affiliation NEC Corporation (NEC Corp.)
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Speaker Author-1 
Date Time 2018-08-23 16:30:00 
Presentation Time 40 minutes 
Registration for CQ 
Paper # CQ2018-50 
Volume (vol) vol.118 
Number (no) no.192 
Page pp.23-27 
#Pages 5 
Date of Issue 2018-08-16 (CQ) 

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