Presentation 2020-02-27
An efficient traffic reduction scheme for mobile cooperative cache by pushing contents preliminarily.
Takayuki Shiroma, Masato Yoshimi, Celimuge Wu, Tsutomu Yoshinaga,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Utilizing mobile devices as cache servers over 5G Device-to-Device(D2D) ad-hoc network is a promising technique to reduce explosive traffic generated from Video-on-Demand services. A challenge of D2D cache is to optimize this cache from a macroscopic view, but it has difficulty from the mismatch between the capricious nature of device mobility and the complexity of optimization. We partially overcome the complexity by Templatized Elastic Assignment (TEA) which utilizes templates for some typical optimization results and reuses them in different situations. Such templatization enables to determine the sub-optimal content allocation in the different number of devices with a few seconds of computation. %% However, TEA requires various patterns of "one-shot" calculation according to the request deviation, as this templatization depends on the request deviation. In this paper, we expand TEA to autonomously manage content allocation to closer to an ideal situation which is generated from estimation from the number of devices. %% Common characteristics of templates under different request deviation are heuristically modeled and verified to the perfect content aOur experiments show that the proposed scheme gives sub-optimal content allocation with only a few percents of traffic increase compared to a case of perfect content allocation.
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Paper # CPSY2019-97,DC2019-103
Date of Issue 2020-02-20 (CPSY, DC)

Conference Information
Committee CPSY / DC / IPSJ-SLDM / IPSJ-EMB / IPSJ-ARC
Conference Date 2020/2/27(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Yoron-cho Chuou-Kouminkan
Topics (in Japanese) (See Japanese page)
Topics (in English) ETNET 2020
Chair Hidetsugu Irie(Univ. of Tokyo) / Satoshi Fukumoto(Tokyo Metropolitan Univ.) / Yutaka Tamiya(Fujitsu Lab.) / / Hiroshi Inoue(Kyushu Univ.)
Vice Chair Michihiro Koibuchi(NII) / Kota Nakajima(Fujitsu Lab.) / Hiroshi Takahashi(Ehime Univ.)
Secretary Michihiro Koibuchi(Nagoya Inst. of Tech.) / Kota Nakajima(Univ. of Tokyo) / Hiroshi Takahashi(Nihon Univ.) / (Chiba Univ.) / (Univ. Shiga Prefecture) / (NTT)
Assistant Eiji Arima(Univ. of Tokyo) / Shugo Ogawa(Hitachi)

Paper Information
Registration To Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System and LSI Design Methodology / Special Interest Group on Embedded Systems / Special Interest Group on System Architecture
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An efficient traffic reduction scheme for mobile cooperative cache by pushing contents preliminarily.
Sub Title (in English)
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1st Author's Name Takayuki Shiroma
1st Author's Affiliation The University of Electro-Communications(UEC)
2nd Author's Name Masato Yoshimi
2nd Author's Affiliation TIS Intec(TIS)
3rd Author's Name Celimuge Wu
3rd Author's Affiliation The University of Electro-Communications(UEC)
4th Author's Name Tsutomu Yoshinaga
4th Author's Affiliation The University of Electro-Communications(UEC)
Date 2020-02-27
Paper # CPSY2019-97,DC2019-103
Volume (vol) vol.119
Number (no) CPSY-428,DC-429
Page pp.pp.57-61(CPSY), pp.57-61(DC),
#Pages 5
Date of Issue 2020-02-20 (CPSY, DC)