Presentation 2019-07-11
A study on Auto-Regressive modeling of Duty Cycle
Kohei Okawa, Hiroki Iwata, Kenta Umebayashi, Janne Lehtom?ki, Miguel L?pez-Ben?tez, Satya Joshi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In dynamic spectrum sharing, it is useful to exploit statistical information on spectrum usage. In this paper, we investigate an AR (Auto-Regressive) modeling to predict DC (Duty Cycle) which is spectrum occupancy rate over time axis. Real DC measurements show behavior that is hard for the typical AR model to express such as a time-varying characteristic of mean DC and existence of time period with low-correlation. To overcome the behavior, we propose a DC model based on AR model considering these behavior. Specifically, the proposed model classifies the states of DC value (high or low) exploiting thresholding process and models the DC based on AR model each state. We also consider the time-varying characteristic of mean DC by means of estimation of mean DC by sliding window process. Several verifications based on real DC measurements show the proposed model can attain high enough prediction accuracy in case of long enough observation period of DC.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cognitive radio / dynamic spectrum access / smart spectrum access / duty cycle / auto-regressive model
Paper # SR2019-29
Date of Issue 2019-07-03 (SR)

Conference Information
Committee SeMI / RCS / NS / SR / RCC
Conference Date 2019/7/10(3days)
Place (in Japanese) (See Japanese page)
Place (in English) I-Site Nanba(Osaka)
Topics (in Japanese) (See Japanese page)
Topics (in English) Communication and Networked Control for the Future Radio of the AI Age, etc
Chair Susumu Ishihara(Shizuoka Univ.) / Tomoaki Otsuki(Keio Univ.) / Yoshikatsu Okazaki(NTT) / Masayuki Ariyoshi(NEC) / Kazunori Hayashi(Osaka City Univ.)
Vice Chair Kazuya Monden(Hitachi) / Koji Yamamoto(Kyoto Univ.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Akihiro Nakao(Univ. of Tokyo) / Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Shunichi Azuma(Nagoya Univ.) / HUAN-BANG LI(NICT)
Secretary Kazuya Monden(Kyoto Univ.) / Koji Yamamoto(NTT DOCOMO) / Satoshi Suyama(Hitachi) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) / Akihiro Nakao(Osaka Pref Univ.) / Suguru Kameda(NTT) / Osamu Takyu(ATR) / Kentaro Ishidu(Univ. of Electro-Comm.) / Shunichi Azuma(Mie Univ.) / HUAN-BANG LI(Kagawa Univ.)
Assistant Akira Uchiyama(Osaka Univ.) / Kenji Kanai(Waseda Univ.) / Masafumi Hashimoto(Osaka Univ.) / Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Shinya Kumagai(Fujitsu) / Shinya Kawano(NTT) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu) / Kentaro Kobayashi(Nagoya Univ.) / Toshinori Kagawa(NICT) / Masateru Ogura(NAIST)

Paper Information
Registration To Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Radio Communication Systems / Technical Committee on Network Systems / Technical Committee on Smart Radio / Technical Committee on Reliable Communication and Control
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on Auto-Regressive modeling of Duty Cycle
Sub Title (in English)
Keyword(1) Cognitive radio
Keyword(2) dynamic spectrum access
Keyword(3) smart spectrum access
Keyword(4) duty cycle
Keyword(5) auto-regressive model
1st Author's Name Kohei Okawa
1st Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo Univ. of Agriculture and Tech.)
2nd Author's Name Hiroki Iwata
2nd Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo Univ. of Agriculture and Tech.)
3rd Author's Name Kenta Umebayashi
3rd Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo Univ. of Agriculture and Tech.)
4th Author's Name Janne Lehtom?ki
4th Author's Affiliation University of Oulu(Univ. of Oulu)
5th Author's Name Miguel L?pez-Ben?tez
5th Author's Affiliation University of Liverpool(Univ. of Liver)
6th Author's Name Satya Joshi
6th Author's Affiliation University of Oulu(Univ. of Oulu)
Date 2019-07-11
Paper # SR2019-29
Volume (vol) vol.119
Number (no) SR-109
Page pp.pp.59-64(SR),
#Pages 6
Date of Issue 2019-07-03 (SR)