Presentation 2015-07-16
Classification Rule of NLoS Region in Indoor Propagation Estimation Combining Ray-Tracing with Statistical Models
Takahiro Hashimoto, Yasuhiro Nishioka, Yoshio Inasawa, Hiroaki Miyashita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to improve estimation accuracy of statistical models, a method in which subdivide NLoS region using number of reflections or diffractions calculated by ray-tracing, and then applies different statistical models to each regions is examined. First, we subdivide NLoS region of office environment using classification rules in which subdivide up to 3 times reflections, 1 times diffraction, and others. Then compare fitting errors of these statistical models. Fitting errors decrease from 4.18 dB to 3 dB after subdivision, but fitting errors don’t decrease any more. Second, we evaluate the calculation errors of developed statistical models in 2 office environments. The calculation error takes minimal value of 3.38 dB in the environment 1 (80m× 20m) when we subdivide NLoS into 3 regions up to 2 times reflections and others, and of 3.69 dB in the environment 2 (25m× 35m) when we subdivide NLoS into 4 regions up to 2 times reflections and 1 times diffraction respectively, and tend to increase when we subdivide further. For these result, it is optimal to subdivide NLoS into approximately 3 or 4 regions.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Statistical Model / Ray-tracing / Propagation Estimation
Paper # EMT2015-31,MW2015-69,OPE2015-43,EST2015-35,MWP2015-34
Date of Issue 2015-07-09 (EMT, MW, OPE, EST, MWP)

Conference Information
Committee EMT / MW / OPE / MWP / EST / IEE-EMT
Conference Date 2015/7/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kushiro City Lifelong Learning Center
Topics (in Japanese) (See Japanese page)
Topics (in English) Light wave & Electromagnetic Wave Workshop
Chair Motoyuki Sato(Tohoku Univ.) / Yohei Ishikawa(Kyoto Univ.) / Hiroyuki Uenohara(Tokyo Inst. of Tech.) / Yuichi Kado(Kyoto Inst. of Tech.) / Tatsuya Kashiwa(Kitami Inst. of Tech.) / Masahiro Tanaka(Gifu Univ.)
Vice Chair Akira Hirose(Univ. of Tokyo) / Masashi Nakatsugawa(NTT) / Takao Kuki(Kokushikan Univ.) / Kenjiro Nishikawa(Kagoshima Univ.) / Kensuke Ogawa(Fujikura) / Tetsuya Kawanishi(NICT) / Hiroyuki Toda(Doshisha Univ.) / Hideaki Kimura(NTT) / Akimasa Hirata(Nagoya Inst. of Tech.) / Shinichiro Ohnuki(Nihon Univ.)
Secretary Akira Hirose(Niigata Univ.) / Masashi Nakatsugawa(Mitsubishi Electric) / Takao Kuki(NTT) / Kenjiro Nishikawa(Panasonic) / Kensuke Ogawa(Fujitsu Labs.) / Tetsuya Kawanishi(NTT) / Hiroyuki Toda(ENRI) / Hideaki Kimura(NTT) / Akimasa Hirata(Tokyo Inst. of Tech.) / Shinichiro Ohnuki(Muroran Inst. of Tech.) / (NDA)
Assistant Kazunori Takahashi(Tohoku Univ.) / Ryo Ishikawa(Univ. of Electro-Comm.) / Naoto Sekiya(Univ. of Yamanashi) / Takaaki Ishigure(Keio Univ.) / Eiji Yagyu(Mitsubishi Electric) / Kensuke Ikeda(CRIEPI) / Atsushi Kanno(NICT) / Atsushi Kezuka(ENRI) / Kenji Taguchi(Kitami Inst. of Tech.) / Yoshihiro Naka(KUHW)

Paper Information
Registration To Technical Committee on Electromagnetic Theory / Technical Committee on Microwaves / Technical Committee on Optoelectronics / Technical Committee on Microwave and Millimeter-wave Photonics / Technical Committee on Electronics Simulation Technology / Technical Meeting on Electromagnetic Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Classification Rule of NLoS Region in Indoor Propagation Estimation Combining Ray-Tracing with Statistical Models
Sub Title (in English)
Keyword(1) Statistical Model
Keyword(2) Ray-tracing
Keyword(3) Propagation Estimation
1st Author's Name Takahiro Hashimoto
1st Author's Affiliation Mitsubishi Electric Corporation(Mitsubishi Electric Corp.)
2nd Author's Name Yasuhiro Nishioka
2nd Author's Affiliation Mitsubishi Electric Corporation(Mitsubishi Electric Corp.)
3rd Author's Name Yoshio Inasawa
3rd Author's Affiliation Mitsubishi Electric Corporation(Mitsubishi Electric Corp.)
4th Author's Name Hiroaki Miyashita
4th Author's Affiliation Mitsubishi Electric Corporation(Mitsubishi Electric Corp.)
Date 2015-07-16
Paper # EMT2015-31,MW2015-69,OPE2015-43,EST2015-35,MWP2015-34
Volume (vol) vol.115
Number (no) EMT-141,MW-142,OPE-143,EST-144,MWP-145
Page pp.pp.131-136(EMT), pp.131-136(MW), pp.131-136(OPE), pp.131-136(EST), pp.131-136(MWP),
#Pages 6
Date of Issue 2015-07-09 (EMT, MW, OPE, EST, MWP)