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Paper Abstract and Keywords
Presentation 2022-11-24 17:40
Experiment Evaluation of Latency Time in Chainless Multi-Layer Consensus
Takaaki Yanagihara, Akihiro Fujihara (CIT) NS2022-115
Abstract (in Japanese) (See Japanese page) 
(in English) Since Bitcoin appeared, a wide variety of blockchain (BC) has been proposed. As a result, the demand for exchanging cryptocurrencies between multiple BCs has increased, and it is important for BC to have interoperability, which is the property of storing and fetching information on multiple BCs each other. Also, BC has the scalability problem of extremely slow transaction processing speed. On this background, we have considered how to solve the scalability problem by enhancing blockchain interoperability. Our previous research has proposed a chainless multi-layer consensus using a cross-referencing method. But, there is a problem with communication congestion in the process of sharing blocks.
In this paper, we report how to solve this problem by improving our consensus
protocol. We also conducted experiments using our node program to evaluate consensus latency time. As a result of the experiments by constructing a large-scale network with more than 100 nodes, we confirmed that the latency time increases superlinearly when the number of BCs increases to parallelize transaction processing. By using the
experimental results, it becomes possible to estimate parameter settings for a chainless multi-layer consensus safely and its transaction processing speed.
Keyword (in Japanese) (See Japanese page) 
(in English) Blockchain / Consensus Algorithm / Scalability / Interoperability / Latency Time / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 274, NS2022-115, pp. 85-90, Nov. 2022.
Paper # NS2022-115 
Date of Issue 2022-11-17 (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 NS2022-115

Conference Information
Committee NS ICM CQ NV  
Conference Date 2022-11-24 - 2022-11-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Humanities and Social Sciences Center, Fukuoka Univ. + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network quality, Network measurement/management, Network virtualization, Network service, Blockchain, Security, Network intelligence/AI, etc. 
Paper Information
Registration To NS 
Conference Code 2022-11-NS-ICM-CQ-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experiment Evaluation of Latency Time in Chainless Multi-Layer Consensus 
Sub Title (in English)  
Keyword(1) Blockchain  
Keyword(2) Consensus Algorithm  
Keyword(3) Scalability  
Keyword(4) Interoperability  
Keyword(5) Latency Time  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takaaki Yanagihara  
1st Author's Affiliation Chiba Institute of Technology (CIT)
2nd Author's Name Akihiro Fujihara  
2nd Author's Affiliation Chiba Institute of Technology (CIT)
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Speaker Author-1 
Date Time 2022-11-24 17:40:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2022-115 
Volume (vol) vol.122 
Number (no) no.274 
Page pp.85-90 
#Pages 6 
Date of Issue 2022-11-17 (NS) 

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