Presentation 2022-01-20
Received Power Prediction of 60 GHz Millimeter-Wave Propagation in Indoor Environment from Time-Series Images Using Neural Networks
Khanh Nam Nguyen, Kenichi Takizawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A millimeter-wave (mmWave) indoor propagation environment with obstacles in 60 GHz frequency band is set up where received signal data can be collected analytically from the proposed calculation method called Kirchhoff approximation (KA). In addition, experimental mmWave received power is also obtained to validate the formulated results, and utilized to train and evaluate predictive models. Two architectures of neural networks are utilized to predict mmWave propagation received power values from time-series images. In detail, three-dimensional (3D) convolutional neural network (CNN) and its combination with long short-term memory (CNN+LSTM) models are evaluated to predict up to 3 seconds ahead with root-mean-square errors of 3.02 dB and 2.32 dB, respectively.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) mmWave / indoor propagation / 60 GHz / time-series images / neural networks / Kirchhoff approximation
Paper # IT2021-55,SIP2021-63,RCS2021-223
Date of Issue 2022-01-13 (IT, SIP, RCS)

Conference Information
Committee RCS / SIP / IT
Conference Date 2022/1/20(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Eiji Okamoto(Nagoya Inst. of Tech.) / Yukihiro Bandou(NTT) / Tadashi Wadayama(Nagoya Inst. of Tech.)
Vice Chair Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Toshihisa Tanaka(Tokyo Univ. Agri.&Tech.) / Takayuki Nakachi(Ryukyu Univ.) / Tetsuya Kojima(Tokyo Kosen)
Secretary Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Xiaomi) / Toshihisa Tanaka(Takushoku Univ.) / Takayuki Nakachi(Tokyo Univ. Agri.&Tech.) / Tetsuya Kojima(Saitamai Univ.)
Assistant Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Taichi Yoshida(UEC) / Seisuke Kyochi(Univ. of Kitakyushu) / Masanori Hirotomo(Saga Univ.)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Signal Processing / Technical Committee on Information Theory
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Received Power Prediction of 60 GHz Millimeter-Wave Propagation in Indoor Environment from Time-Series Images Using Neural Networks
Sub Title (in English)
Keyword(1) mmWave
Keyword(2) indoor propagation
Keyword(3) 60 GHz
Keyword(4) time-series images
Keyword(5) neural networks
Keyword(6) Kirchhoff approximation
1st Author's Name Khanh Nam Nguyen
1st Author's Affiliation National Institute of Information and Communications Technology(NICT)
2nd Author's Name Kenichi Takizawa
2nd Author's Affiliation National Institute of Information and Communications Technology(NICT)
Date 2022-01-20
Paper # IT2021-55,SIP2021-63,RCS2021-223
Volume (vol) vol.121
Number (no) IT-327,SIP-328,RCS-329
Page pp.pp.149-154(IT), pp.149-154(SIP), pp.149-154(RCS),
#Pages 6
Date of Issue 2022-01-13 (IT, SIP, RCS)