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Paper Abstract and Keywords
Presentation 2024-03-01 14:15
A Study of MPQUIC Packet Scheduler Based on Unacknowledged Time for Remote Monitoring of Autonomous Driving
Hiroki Iwasawa, Seiya Komatsu, Taichi Kawano, Takuya Tojo (NTT) NS2023-230
Abstract (in Japanese) (See Japanese page) 
(in English) The realization of autonomous driving is awaited. In Japan, driverless autonomous driving on public roads is finally approved under some conditions such as real-time remote monitoring. However, in the current mobile networks, it is difficult to provide stable remote monitoring with a single line due to the lack of uplink bandwidth and fluctuations in radio quality. Although using multiple lines with MPQUIC is expected to improve the stability of remote monitoring, it may worsen video latency and noise due to packet latency and loss caused by the reordering of packet arrival between lines. Conventional packet scheduling algorithms select transmission lines based on SRTT and congestion window. These metrics cannot immediately detect sudden quality degradations that occurs in the mobile networks. In this paper, we propose a novel packet scheduling algorithm that can avoid sudden quality degradations by determining the transmission lines based on the elapsed time since the packet was sent. We implemented the proposed method and evaluated it in a virtual network to simulate delay and bandwidth fluctuations. The evaluation results showed that the proposed method reduces the transmission delay of video frames compared to the conventional methods. Also, we evaluated our method on the actual mobile networks and showed that it can reduce delay frames of 500 ms or more by at least 90% compared to the conventional method.
Keyword (in Japanese) (See Japanese page) 
(in English) Transport protocol / MPQUIC / Packet scheduling / Autonomous driving / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 397, NS2023-230, pp. 342-347, Feb. 2024.
Paper # NS2023-230 
Date of Issue 2024-02-22 (NS) 
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 NS2023-230

Conference Information
Committee NS IN  
Conference Date 2024-02-29 - 2024-03-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Convention Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2024-02-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of MPQUIC Packet Scheduler Based on Unacknowledged Time for Remote Monitoring of Autonomous Driving 
Sub Title (in English)  
Keyword(1) Transport protocol  
Keyword(2) MPQUIC  
Keyword(3) Packet scheduling  
Keyword(4) Autonomous driving  
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1st Author's Name Hiroki Iwasawa  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Seiya Komatsu  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Taichi Kawano  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Takuya Tojo  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2024-03-01 14:15:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2023-230 
Volume (vol) vol.123 
Number (no) no.397 
Page pp.342-347 
#Pages 6 
Date of Issue 2024-02-22 (NS) 

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