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Paper Abstract and Keywords
Presentation 2013-12-19 10:50
Many to One Transport Capacity of Orthogonal Wireless Sensor Networks based on I-MMSE
Ajib Setyo Arifin, Tomoaki Ohtsuki (Keio Univ.) RCS2013-227
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, we investigate the properties of data gathering in wireless
sensor networks, in terms of both capacity and power allocation strategy. We
consider a scenario in which a number of sensors observe a target being
estimated at fusion center (FC) using minimum mean-square error (MMSE)
estimator. Based on the relationship between mutual information and
MMSE (I-MMSE), we derive the capacity of data gathering in
orthogonal multiple access channel (MAC) model. Considering power
constraint, we derive the capacity under two scenarios: equal power allocation and optimal power allocation. We also provide the upper bound of capacity as a benchmark. We show in the simulation that the optimal method outperforms the equal power method. Particularly, the optimal power method has more benefit than the equal power method when it is applied with the limited power budget. The optimal power method can also be used for conserving the energy of the sensors and extending sensor's lifetime.
Keyword (in Japanese) (See Japanese page) 
(in English) Capacity of data gathering / estimation / power constraint / orthogonal multiple access channel (MAC) / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 361, RCS2013-227, pp. 125-129, Dec. 2013.
Paper # RCS2013-227 
Date of Issue 2013-12-11 (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 RCS2013-227

Conference Information
Committee RCS NS  
Conference Date 2013-12-18 - 2013-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Sunport Hall Takamatsu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To RCS 
Conference Code 2013-12-RCS-NS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Many to One Transport Capacity of Orthogonal Wireless Sensor Networks based on I-MMSE 
Sub Title (in English)  
Keyword(1) Capacity of data gathering  
Keyword(2) estimation  
Keyword(3) power constraint  
Keyword(4) orthogonal multiple access channel (MAC)  
1st Author's Name Ajib Setyo Arifin  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Tomoaki Ohtsuki  
2nd Author's Affiliation Keio University (Keio Univ.)
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Date Time 2013-12-19 10:50:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2013-227 
Volume (vol) IEICE-113 
Number (no) no.361 
Page pp.125-129 
#Pages IEICE-5 
Date of Issue IEICE-RCS-2013-12-11 

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