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Paper Abstract and Keywords
Presentation 2018-03-09 11:15
Graph Construction for Mobile Delay Tomography based on Graph Fourier Transform
Hideaki Kinsho (Osaka Univ.), Rie Tagyo, Daisuke Ikegami (NTT), Takahiro Matsuda (Osaka Univ.), Jun Okamoto (NTT), Tetsuya Takine (Osaka Univ.) CQ2017-121
Abstract (in Japanese) (See Japanese page) 
(in English) In wide area mobile networks, {em Mobile Delay Tomography} has been proposed in order to estimate delays at network components such as base stations and servers. In Mobile Delay Tomography, average delays at network components are estimated with {em Compressed Sensing} under an assumption that a {em Graph Fourier Transform}~(GFT) of delays at base stations and delays at servers are represented as sparse vectors. The graph construction scheme for GFT is an important technical issue to achieve highly accurate delay estimation. Graphs constructed based on distance among base stations, however, may increase the estimation error when the difference of average delays among neighboring base stations is large. In this article, we propose a graph construction scheme using a clustering algorithm in 3-dimensional feature space based on locations and estimated delays at base stations. We evaluate the performance of the proposed scheme with simulation experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) delay tomography / Graph Fourier Transform / Compressed Sensing / graph construction / clustering / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 486, CQ2017-121, pp. 105-110, March 2018.
Paper # CQ2017-121 
Date of Issue 2018-03-01 (CQ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 CQ MVE IE IMQ  
Conference Date 2018-03-08 - 2018-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industry Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Five Senses Media, Cooking and Eating Activities Media, Multimedia, Media Experience, Video Encoding, Image Media Quality, Network Quality and Reliability, etc. (Co-sponsor: Technical Committee on Multimedia on Cooking and Eating Activities (CEA)) 
Paper Information
Registration To CQ 
Conference Code 2018-03-CQ-MVE-IE-IMQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Graph Construction for Mobile Delay Tomography based on Graph Fourier Transform 
Sub Title (in English)  
Keyword(1) delay tomography  
Keyword(2) Graph Fourier Transform  
Keyword(3) Compressed Sensing  
Keyword(4) graph construction  
Keyword(5) clustering  
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1st Author's Name Hideaki Kinsho  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Rie Tagyo  
2nd Author's Affiliation NTT Corporation (NTT)
3rd Author's Name Daisuke Ikegami  
3rd Author's Affiliation NTT Corporation (NTT)
4th Author's Name Takahiro Matsuda  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Jun Okamoto  
5th Author's Affiliation NTT Corporation (NTT)
6th Author's Name Tetsuya Takine  
6th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2018-03-09 11:15:00 
Presentation Time 25 minutes 
Registration for CQ 
Paper # CQ2017-121 
Volume (vol) vol.117 
Number (no) no.486 
Page pp.105-110 
#Pages
Date of Issue 2018-03-01 (CQ) 


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