Presentation 2020-01-17
Bayesian channel selection method for LoRaWAN under unpredictable wireless channel fluctuations
Daichi Kominami, Yohei Hasegawa, Kosuke Nogami, Hideyuki Shimonishi, Masayuki Murata,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Internet of Things (IoT) become a common term used in society. LPWA technology is attracting attention as one of its elemental technologies. LoRa is one of LPWA communication technologies using unlicensed bands. Since it is possible to build a self-managed network with LoRa, many services using LoRa will be scattered in the same area without the entire administrator. As a result, communication performance of LoRa may be degraded due to unintended radio interferences. In this research, we propose a method for estimating the network state by successive estimation using Bayesian update and a wireless channel assignment method based on the estimation results. Through computer simulation, we show the network performance improvement with out proposal.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Bayesian attractor model / LPWA / LoRa / Bayes inference
Paper # CQ2019-122
Date of Issue 2020-01-09 (CQ)

Conference Information
Committee CQ
Conference Date 2020/1/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) NHK Science & Technology Research Laboratories
Topics (in Japanese) (See Japanese page)
Topics (in English) AR/VR, Broadcasting Service, Video/Voice Services Quality, High Realistic, User Behavior/Psychology, User Experience, Media Quality, Network Quality and QoS Control, Networks and Communications at Disaster, User Behavior, Machine Learning, etc.
Chair Hideyuki Shimonishi(NEC)
Vice Chair Jun Okamoto(NTT) / Takefumi Hiraguri(Nippon Inst. of Tech.)
Secretary Jun Okamoto(Nippon Inst. of Tech.) / Takefumi Hiraguri(Doshisha Univ.)
Assistant Chikara Sasaki(KDDI Research) / Yoshiaki Nishikawa(NEC) / Takuto Kimura(NTT)

Paper Information
Registration To Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Bayesian channel selection method for LoRaWAN under unpredictable wireless channel fluctuations
Sub Title (in English)
Keyword(1) Bayesian attractor model
Keyword(2) LPWA
Keyword(3) LoRa
Keyword(4) Bayes inference
1st Author's Name Daichi Kominami
1st Author's Affiliation Osaka University(Osaka Univ.)
2nd Author's Name Yohei Hasegawa
2nd Author's Affiliation NEC Corporation(NEC)
3rd Author's Name Kosuke Nogami
3rd Author's Affiliation NEC Corporation(NEC)
4th Author's Name Hideyuki Shimonishi
4th Author's Affiliation NEC Corporation(NEC)
5th Author's Name Masayuki Murata
5th Author's Affiliation Osaka University(Osaka Univ.)
Date 2020-01-17
Paper # CQ2019-122
Volume (vol) vol.119
Number (no) CQ-367
Page pp.pp.83-88(CQ),
#Pages 6
Date of Issue 2020-01-09 (CQ)