Presentation 2021-11-05
Partitioned Path Loss Models Based on Coefficient of Determination
Keita Katagiri, Takeo Fujii,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A path loss model is a fundamental method to roughly predict radio propagation characteristics. However, most conventional models do not consider the anisotropy of radio propagation. If geographical conditions, such as the number of buildings, are irregularly change, the radio propagation characteristics may significantly fluctuate. This paper proposes the partitioned path loss models based on coefficient of determination. The proposed method first collects the instantaneous received signal power via a measurement campaign and these datasets are transformed to the polar coordinate. Thus, a path loss model is estimated in each azimuth region and several path loss models are unified using coefficient of determination. Through the emulation results using measured datasets in the cellular communication, we can confirm that the proposed method accurately estimates the radio propagation compared to the single path loss model.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Radio propagation / Path loss / Coefficient of determination / Polar coordinates transformation
Paper # SR2021-54
Date of Issue 2021-10-28 (SR)

Conference Information
Committee SR
Conference Date 2021/11/4(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Software Defined Radio, Cognitive Radio, Spectrum Shareing, etc.
Chair Suguru Kameda(Hiroshima Univ.)
Vice Chair Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR)
Secretary Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT)
Assistant Mai Ohta(Fukuoka Univ.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks)

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) Partitioned Path Loss Models Based on Coefficient of Determination
Sub Title (in English)
Keyword(1) Radio propagation
Keyword(2) Path loss
Keyword(3) Coefficient of determination
Keyword(4) Polar coordinates transformation
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 2021-11-05
Paper # SR2021-54
Volume (vol) vol.121
Number (no) SR-227
Page pp.pp.79-84(SR),
#Pages 6
Date of Issue 2021-10-28 (SR)