Presentation 2018-01-26
A Calibration Method for Crowdsensing Based Radio Environment Database
Miho Ito, Keita Onose, Koya Sato, Kei Inage, Takeo Fujii,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In spectrum sharing with cognitive radio, radio environment estimation is essential to secure quality of unlicensed users' communication with interference power constraint. For radio environment estimation, a radio environment database has been used. In order to construct this database, a sensing scheme using smartphones has been proposed. However, this scheme is difficult to achieve high precision radio environment measurement because the sensing information from smartphones include offset components which are different in each smartphone. In this paper, we propose a calibration method correcting offset components in the observed value to obtain actual received signal strength indication by subtracting propagation loss, fading loss, and transmit power from the observed value. Our calibration method shows that the offset error correction leads to constructing a precise radio environment database.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cognitive Radio / Radio Environment Database / Crowdsensing / Calibration
Paper # SR2017-103
Date of Issue 2018-01-18 (SR)

Conference Information
Committee SR
Conference Date 2018/1/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Fukuoka univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) IoT, etc.
Chair Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.)
Vice Chair Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.)
Secretary Masayuki Ariyoshi(NICT) / Suguru Kameda(ATR)
Assistant Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(NIT, Akashi College)

Paper Information
Registration To Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Calibration Method for Crowdsensing Based Radio Environment Database
Sub Title (in English)
Keyword(1) Cognitive Radio
Keyword(2) Radio Environment Database
Keyword(3) Crowdsensing
Keyword(4) Calibration
1st Author's Name Miho Ito
1st Author's Affiliation The University of Electro-Communications(UEC)
2nd Author's Name Keita Onose
2nd Author's Affiliation The University of Electro-Communications(UEC)
3rd Author's Name Koya Sato
3rd Author's Affiliation The University of Electro-Communications(UEC)
4th Author's Name Kei Inage
4th Author's Affiliation Tokyo Metropolitan College of Industrial Technology(TMCIT)
5th Author's Name Takeo Fujii
5th Author's Affiliation The University of Electro-Communications(UEC)
Date 2018-01-26
Paper # SR2017-103
Volume (vol) vol.117
Number (no) SR-410
Page pp.pp.57-62(SR),
#Pages 6
Date of Issue 2018-01-18 (SR)