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Paper Abstract and Keywords
Presentation 2020-03-05 11:40
Simulation of the Bitcoin Network Considering Compact Block Relay and Internet Improvements
Ryunosuke Nagayama, Kazuyuki Shudo, Ryohei Banno (Tokyo Tech) NS2019-208
Abstract (in Japanese) (See Japanese page) 
(in English) Improving transaction throughput is an important challenge for Bitcoin. However, shortening the block generation interval or increasing the block size makes sharing blocks within the network slower and increases the number of orphan blocks. Therefore, to mitigate this, it is necessary to reduce the block propagation delay. Because of the contribution of compact block relay and evolution of the Internet, the block propagation delay has been shortened in recent years. However, there is no quantitative analysis of these contributions. In this study, we measure the block propagation delay on the Bitcoin network using a simulator, and investigate the effect of compact block relay and Internet improvements from 2015 to 2019. The experimental results reveal that the block propagation delay is reduced by 64.5% for the 50th percentile and 63.7% for the 90th percentile due to Internet improvements, and by 90.1% for the 50th percentile and by 87.6% for the 90th percentile due to compact block relay.
Keyword (in Japanese) (See Japanese page) 
(in English) Bitcoin / blockchain / propagation delay / simulator / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 460, NS2019-208, pp. 179-183, March 2020.
Paper # NS2019-208 
Date of Issue 2020-02-27 (NS) 
ISSN 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)
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Conference Information
Committee NS IN  
Conference Date 2020-03-05 - 2020-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Royal Hotel Okinawa Zanpa-Misaki 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2020-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simulation of the Bitcoin Network Considering Compact Block Relay and Internet Improvements 
Sub Title (in English)  
Keyword(1) Bitcoin  
Keyword(2) blockchain  
Keyword(3) propagation delay  
Keyword(4) simulator  
1st Author's Name Ryunosuke Nagayama  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Kazuyuki Shudo  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
3rd Author's Name Ryohei Banno  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2020-03-05 11:40:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2019-208 
Volume (vol) vol.119 
Number (no) no.460 
Page pp.179-183 
Date of Issue 2020-02-27 (NS) 

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