Presentation 2018-02-28
A Study on Time Series Modeling of Duty Cycle for Smart Spectrum Access
Daiki Cho, Kenta Umebayashi, Shusuke Narieda, Miguel Lopez Bentez,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) For an efficient spectrum sharing by primary user (PU) and secondary user (SU), SU needs to understand the spectrum usage by PU properly. Specifically, it has been reported that statistical information of spectrum usage by PU can enhance the efficiency of the spectrum sharing. In this paper, we focus on the duty cycle (DC) as statistical information of spectrum usage by PU, and we investigate a time-series modeling of DC, such as AR (Auto-Regressive) model. In a general AR model, the time fluctuation of statistics are not considered. In addition, the experimental results verifies that there are two types of periods: high correlation time period and low correlation time period. We propose a model in which the two types of periods and the time fluctuation of statistics. In the proposed time-series model, we employ detection method of the two states (high correlation state and low correlation state). Two different types of time-series models are used for the two sates. We show the validity of proposed model by experiment of spectrum measurement in 2.4 GHz band.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cognitive radio / dynamic spectrum access / smart spectrum access, / spectrum measurement / duty cycle / auto-regressive model
Paper # SR2017-112
Date of Issue 2018-02-21 (SR)

Conference Information
Committee RCS / SR / SRW
Conference Date 2018/2/28(3days)
Place (in Japanese) (See Japanese page)
Place (in English) YRP
Topics (in Japanese) (See Japanese page)
Topics (in English) Mobile Communication Workshop
Chair Hidekazu Murata(Kyoto Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Tadao Nakagawa(Tottori Univ.)
Vice Chair Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Satoshi Denno(Okayama Univ.) / Makoto Hamaminato(Fujitsu labs.)
Secretary Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda(NICT) / Satoshi Denno(Kyoto Univ.) / Makoto Hamaminato
Assistant Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(NIT, Akashi College) / Kentaro Saito(Tokyo Inst. of Tech.) / Hiromasa Yamauchi(Fujitsu labs.)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Time Series Modeling of Duty Cycle for Smart Spectrum Access
Sub Title (in English)
Keyword(1) Cognitive radio
Keyword(2) dynamic spectrum access
Keyword(3) smart spectrum access,
Keyword(4) spectrum measurement
Keyword(5) duty cycle
Keyword(6) auto-regressive model
1st Author's Name Daiki Cho
1st Author's Affiliation Tokyo University of Agriculture and Technology(TUAT)
2nd Author's Name Kenta Umebayashi
2nd Author's Affiliation Tokyo University of Agriculture and Technology(TUAT)
3rd Author's Name Shusuke Narieda
3rd Author's Affiliation National Institute of Technology, Akashi College(NIT, Akashi College)
4th Author's Name Miguel Lopez Bentez
4th Author's Affiliation University of Liverpool(UoL)
Date 2018-02-28
Paper # SR2017-112
Volume (vol) vol.117
Number (no) SR-457
Page pp.pp.1-7(SR),
#Pages 7
Date of Issue 2018-02-21 (SR)