Presentation 2022-11-24
Study on Training Data Generation for Estimating Spatial Loss Fields
Yoshiaki Nishikawa, Takahiro Matsuda, Eiji Takahashi, Takeo Onishi, Toshiki Takeuchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Spatial Loss Fields (SLFs) are maps quantifying the attenuation of radio signals in a monitored region. SLFs, which are estimated from received signal strengths, have some kind of unclearness coming from reflections and diffractions of signal. Although surpervised learning methods to decrease this unclearness need plenty of true SLFs, it is dificult to collect true SLFs of various factories. It is needed to generate training data which are torelant to the multipath environment. In this article, we propose training data generation method with a simulation. The proposed method makes true SLF randomly, and simulates whether received signals are transmitted on a line-of-sight (LOS) path or a non-line-of-sight path. The model is trained to infer the difference between true and estimated SLFs from the estimated SLF. We use denoise convolutional neaural network as the model and evaluate the performance of the proposed method with simulation experience.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) spatial loss field / denoise convolutional neaural network / surpervised learning
Paper # CQ2022-47
Date of Issue 2022-11-17 (CQ)

Conference Information
Committee NS / ICM / CQ
Conference Date 2022/11/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Humanities and Social Sciences Center, Fukuoka Univ. + Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Network quality, Network measurement/management, Network virtualization, Network service, Blockchain, Security, Network intelligence/AI, etc.
Chair Tetsuya Oishi(NTT) / Yuji Nomura(Fujitsu) / Jun Okamoto(NTT)
Vice Chair Takumi Miyoshi(Shibaura Insti of Tech.) / Yu Miyoshi(NTT) / Eiji Takahashi(NEC) / Takefumi Hiraguri(Nippon Inst. of Tech.) / Gou Hasegawa(Tohoku Univ.)
Secretary Takumi Miyoshi(NTT) / Yu Miyoshi(Kogakuin Univ.) / Eiji Takahashi(NTT) / Takefumi Hiraguri(Fujitsu) / Gou Hasegawa(NTT)
Assistant Kotaro Mihara(NTT) / Ryo Yamamoto(Univ. of Electro-Comm) / Kimiko Kawashima(NTT) / Ryo Nakamura(Fukuoka Univ.) / Toshiro Nakahira(NTT) / Kenta Tsukatsune(Tokyo Metroplitan Univ.)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information and Communication Management / Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Study on Training Data Generation for Estimating Spatial Loss Fields
Sub Title (in English)
Keyword(1) spatial loss field
Keyword(2) denoise convolutional neaural network
Keyword(3) surpervised learning
1st Author's Name Yoshiaki Nishikawa
1st Author's Affiliation NEC(NEC)
2nd Author's Name Takahiro Matsuda
2nd Author's Affiliation Tokyo Metropolitan University(TMU)
3rd Author's Name Eiji Takahashi
3rd Author's Affiliation NEC(NEC)
4th Author's Name Takeo Onishi
4th Author's Affiliation NEC(NEC)
5th Author's Name Toshiki Takeuchi
5th Author's Affiliation NEC(NEC)
Date 2022-11-24
Paper # CQ2022-47
Volume (vol) vol.122
Number (no) CQ-275
Page pp.pp.1-6(CQ),
#Pages 6
Date of Issue 2022-11-17 (CQ)