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Paper Abstract and Keywords
Presentation 2019-06-20 15:15
One Whistle for Yes, Two Whistles for No: Ultrasonic Blockchain Messaging at Network Edge
Marat Zhanikeev (Tokyo Univ. of Science) RCS2019-77
Abstract (in Japanese) (See Japanese page) 
(in English) Blockchain technology is extremely important at wireless network edge as it can provide verifiable security and trust mechanisms to end users and, thus, incentivize them to participate in various services. Traditional blockchain is unfeasible in wireless environments as (1) it is based on resource-consuming Proof-of-Work (PoW) technique and (2) create too much messaging overhead. This paper focuses on (2) and proposes that ultrasound broadcasts can be useful to achieve reliable consensus over a wide range of client density. The only assumption is that local context changes gradually over time, which is why more effort is spent when signaling "no" -- that is, when one or more clients trigger an update. The proposal can be easily implemented on commodity smartphones and can be used as verifiable proof for a wide variety of location-aware services at network edge.
Keyword (in Japanese) (See Japanese page) 
(in English) ultrasound messaging / network edge / IoT / blockchain / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 90, RCS2019-77, pp. 245-248, June 2019.
Paper # RCS2019-77 
Date of Issue 2019-06-12 (RCS) 
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 RCS2019-77

Conference Information
Committee RCS  
Conference Date 2019-06-19 - 2019-06-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyakojima Hirara Port Terminal Building 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2019-06-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) One Whistle for Yes, Two Whistles for No: Ultrasonic Blockchain Messaging at Network Edge 
Sub Title (in English)  
Keyword(1) ultrasound messaging  
Keyword(2) network edge  
Keyword(3) IoT  
Keyword(4) blockchain  
1st Author's Name Marat Zhanikeev  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Date Time 2019-06-20 15:15:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2019-77 
Volume (vol) IEICE-119 
Number (no) no.90 
Page pp.245-248 
#Pages IEICE-4 
Date of Issue IEICE-RCS-2019-06-12 

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