Presentation 2017-04-21
Mobile Network Tomography Based on Sparse Spectrum Structure of Delay Time Series
Rie Tagyo, Hideaki Kinsho, Daisuke Ikegami, Takahiro Matsuda, Takanori Hayashi, Tetsuya Takine,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In mobile networks, Quality of Service (QoS) of end-to-end connections is affected by the performance of various network components such as users' terminals, servers, routers, base stations, etc. In order to estimate a quality of each network component such as delay, we propose a novel network tomography scheme based on Discrete cosine transform (DCT) and Compressed Sensing (CS) by focusing on a structure of time series of delay. This proposed tomography is a method of estimating delay at each component by using network measurements collected by crowdsourcing scheme. By using two characteristics which are sparsity of delay time series occurred at wireless access networks in DCT domain and sparsity of delay occurred at servers, we propose the method to estimating the qualities of wireless access networks and the qualities of servers by the means of CS. We evaluate the performance of the proposed scheme through simulations by using actual measured data.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Quality of Service (QoS) / crowdsourcing / network tomography / discrete cosine transform (DCT) / compressed sensing
Paper # CQ2017-12
Date of Issue 2017-04-13 (CQ)

Conference Information
Committee CS / CQ
Conference Date 2017/4/20(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Chitose Institute of Science and Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Network Serice, Service Quality, SDN (Software-Defined Networking), NFV (Network Functions. Virtualization), Network Virtualization, Cloud, Contents Delivery, etc
Chair Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Kyoko Yamori(Asahi Univ.)
Vice Chair Hidenori Nakazato(Waseda Univ.) / Takanori Hayashi(NTT) / Hideyuki Shimonishi(NEC)
Secretary Hidenori Nakazato(NTT) / Takanori Hayashi(Kyushu Univ.) / Hideyuki Shimonishi(Osaka Univ.)
Assistant / Hirantha Abeysekera(NTT) / Norihiro Fukumoto(KDDI R&D Labs.)

Paper Information
Registration To Technical Committee on Communication Systems / Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Mobile Network Tomography Based on Sparse Spectrum Structure of Delay Time Series
Sub Title (in English)
Keyword(1) Quality of Service (QoS)
Keyword(2) crowdsourcing
Keyword(3) network tomography
Keyword(4) discrete cosine transform (DCT)
Keyword(5) compressed sensing
1st Author's Name Rie Tagyo
1st Author's Affiliation NTT Corporation(NTT)
2nd Author's Name Hideaki Kinsho
2nd Author's Affiliation Osaka University(Osaka Univ.)
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 Takanori Hayashi
5th Author's Affiliation NTT Corporation(NTT)
6th Author's Name Tetsuya Takine
6th Author's Affiliation Osaka University(Osaka Univ.)
Date 2017-04-21
Paper # CQ2017-12
Volume (vol) vol.117
Number (no) CQ-5
Page pp.pp.59-64(CQ),
#Pages 6
Date of Issue 2017-04-13 (CQ)