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Paper Abstract and Keywords
Presentation 2011-07-08 09:25
A Duty Cycle MAC Protocol with Energy Consumption Reduction by Decreasing the Number of Hops in Wireless Sensor Networks
Tatsuya Koizumi, Shinji Kano, Iwao Sasase (Keio Univ.) CS2011-23
Abstract (in Japanese) (See Japanese page) 
(in English) Light-Weight energy efficiency Media Access Control (LWMAC) is an asynchronous duty cycle MAC protocol to shorten the preamble length by selecting the node which is changed to be in active mode first during the preamble as a next hop node without selecting it in advance, and then reduces energy consumption in wireless sensor networks.
However, LWMAC may increase the number of hops because it doesn't consider the distance from a source node to a next hop node. Therefore, when a source node selects a node which is far to a sink node as a next hop node, energy consumption cannot be reduced.
In this paper, we propose a duty cycle MAC protocol that decreases the number of hops and reduces energy consumption by selecting a node that is closer to a sink node as a next hop node when more than two candidate nodes change to be in active mode until the end of preamble whose length is same in LWMAC.
By the simulation, we evaluate the average number of hops of LWMAC and the proposed scheme. The simulation results show that the proposed scheme reduces the energy consumption by decreasing the average number of hops.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless sensor networks / asynchronous MAC protocol / duty cycle / energy consumption / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 117, CS2011-23, pp. 73-78, July 2011.
Paper # CS2011-23 
Date of Issue 2011-06-30 (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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CS2011-23

Conference Information
Committee CS  
Conference Date 2011-07-07 - 2011-07-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumejima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Next generation networks, access network, broadband access system, power-line communications, wireless communication systems, coding system, etc. 
Paper Information
Registration To CS 
Conference Code 2011-07-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Duty Cycle MAC Protocol with Energy Consumption Reduction by Decreasing the Number of Hops in Wireless Sensor Networks 
Sub Title (in English)  
Keyword(1) wireless sensor networks  
Keyword(2) asynchronous MAC protocol  
Keyword(3) duty cycle  
Keyword(4) energy consumption  
1st Author's Name Tatsuya Koizumi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Shinji Kano  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Iwao Sasase  
3rd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2011-07-08 09:25:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2011-23 
Volume (vol) vol.111 
Number (no) no.117 
Page pp.73-78 
Date of Issue 2011-06-30 (CS) 

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