Presentation 2019-05-31
[Technology Exhibit] Highly Accurate Prediction of Radio Environment for V2V Communication Systems
Keita Katagiri, Takeo Fujii,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An accurate estimation of radio propagation considering the geographical conditions is needed for realizing reliable vehicle-to-vehicle (V2V) communications. As one of the methods, a measurement-based spectrum database (MSD) attracts attention. In MSD, radio environment gathered by huge numbers of terminals is accumulated in the database and the gathered datasets are used to generate the radio environment map (REM). By using REM, path loss and shadowing can accurately be estimated in an arbitrary position. Until now, the effectiveness is clarified by experiments in V2V communications operated 700,MHz,band. However, in the conventional work, the number of measurement datasets is extremely few in some locations and the accuracy of the statistical data may be poor. In this paper, we performed measurement campaign of V2V communication operated 5.9,GHz,band and constructed a database. The measurement campaign is performed by using dedicated short range communication and the enough datasets can be obtained in each mesh. Additionally, we propose the packet delivery rate (PDR) calculation algorithm for wireless distributed environment and construct PDR maps in each transmitter position. The results show that the proposed database can accurately estimate the received signal power and PDR in line-of-sight and non-line-of-sight.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Spectrum Database / Wireless Distributed Environment / Radio Propagation / Vehicle-to-Vehicle Communications
Paper # SR2019-18
Date of Issue 2019-05-23 (SR)

Conference Information
Committee SR
Conference Date 2019/5/30(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokyo Big Sight
Topics (in Japanese) (See Japanese page)
Topics (in English) Technical Exhibition, LPWA, General
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 Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(Mie Univ.) / Koji Ohshima(Kozo Keikaku Engineering) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.)

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) [Technology Exhibit] Highly Accurate Prediction of Radio Environment for V2V Communication Systems
Sub Title (in English)
Keyword(1) Spectrum Database
Keyword(2) Wireless Distributed Environment
Keyword(3) Radio Propagation
Keyword(4) Vehicle-to-Vehicle Communications
1st Author's Name Keita Katagiri
1st Author's Affiliation The University of Electro-Communications(UEC)
2nd Author's Name Takeo Fujii
2nd Author's Affiliation The University of Electro-Communications(UEC)
Date 2019-05-31
Paper # SR2019-18
Volume (vol) vol.119
Number (no) SR-62
Page pp.pp.107-112(SR),
#Pages 6
Date of Issue 2019-05-23 (SR)