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Paper Abstract and Keywords
Presentation 2019-04-18 11:10
FPGA prototype of autonomous Time Aware Shaper for low-latency layer 2 switch
Kazuto Nishimura, Masaki Hirota, Takafumi Terahara, Hideki Matsui (Fujitsu) CS2019-5
Abstract (in Japanese) (See Japanese page) 
(in English) In 5th Generation mobile communication, it is considered that Mobile Front Haul (MFH) network is integrated to Layer 2 network because of network efficiency. However, in such a network, MFH traffic may be influenced by other traffic in point of delay. As MFH traffic is delay-sensitive, IEEE802.1-Time Sensitive Networking (TSN) is paid attention because it may achieve low latency communication in packet network. In this paper, we focus on IEEE802.1Qbv (Time Aware Shaper : TAS) which is one of the queueing architecture of TSN. We have proposed the autonomous TAS method called intelligent TAS (iTAS) which could solve the operational problem previously, and have verified the principle of iTAS by using software prototype. In this paper, we implement a part of iTAS function to FPGA and achieve 1000 times more granularity
improvement. This result shows that our method can be applied to actual MFH environment.
Keyword (in Japanese) (See Japanese page) 
(in English) Low-latency / Layer 2 switch / IEEE802.1 TSN / IEEE802.1Qbv / iTAS / Mobile Front Haul / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 6, CS2019-5, pp. 25-30, April 2019.
Paper # CS2019-5 
Date of Issue 2019-04-11 (CS) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CS2019-5

Conference Information
Committee CS CQ  
Conference Date 2019-04-18 - 2019-04-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. Library 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Optical/Wireless Access and Their Integration, QoS and QoE, Assessment / Measurement / Control / Optimization of Communication Quality, Network Services, etc 
Paper Information
Registration To CS 
Conference Code 2019-04-CS-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) FPGA prototype of autonomous Time Aware Shaper for low-latency layer 2 switch 
Sub Title (in English)  
Keyword(1) Low-latency  
Keyword(2) Layer 2 switch  
Keyword(3) IEEE802.1 TSN  
Keyword(4) IEEE802.1Qbv  
Keyword(5) iTAS  
Keyword(6) Mobile Front Haul  
1st Author's Name Kazuto Nishimura  
1st Author's Affiliation Fujitsu LTD (Fujitsu)
2nd Author's Name Masaki Hirota  
2nd Author's Affiliation Fujitsu LTD (Fujitsu)
3rd Author's Name Takafumi Terahara  
3rd Author's Affiliation Fujitsu LTD (Fujitsu)
4th Author's Name Hideki Matsui  
4th Author's Affiliation Fujitsu LTD (Fujitsu)
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Speaker Author-1 
Date Time 2019-04-18 11:10:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2019-5 
Volume (vol) vol.119 
Number (no) no.6 
Page pp.25-30 
Date of Issue 2019-04-11 (CS) 

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