Presentation 2021-11-25
An adaptive spreading factor allocation method to dynamic environmental changes using Thermodynamical genetic algorithm for LoRaWAN
Yuki Fujita, Daichi Kominami, Hideyuki Shimonishi, Masayuki Murata,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Low Power Wide Area (LPWA) is a novel communication technology for realizing Internet of Things (IoT) networks, and Long Range Wide Area Network (LoRaWAN) is a major research target in LPWA. LoRaWAN is capable of dynamically changing the data rate and transmission power of nodes in order to improve the packet delivery rate and achieve energy saving. However due to the low transmission speed of LoRaWAN, it is difficult to grasp the network condition by collecting information from each node, calculate the optimal data rate and assign it to each node. In this paper, we propose a spreading factor allocation method inspired by the evolutionary mechanism of living organisms that simultaneously improves packet delivery rate and energy saving even in a fluctuating network environment. Through a computer simulation, we show that optimization of such two metrics can be achieved even in a fluctuating environment.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Evolution of living things / diversity / TDGA / GA / LPWA / Multi-objective optimization
Paper # CQ2021-70
Date of Issue 2021-11-18 (CQ)

Conference Information
Committee CQ / ICM / NS
Conference Date 2021/11/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) JR Hakata Stn. Hakata EkiHigashi Rental Room
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 Jun Okamoto(NTT) / Kazuhiko Kinoshita(Tokushima Univ.) / Akihiro Nakao(Univ. of Tokyo)
Vice Chair Takefumi Hiraguri(Nippon Inst. of Tech.) / Gou Hasegawa(Tohoku Univ.) / Haruo Ooishi(NTT) / Eiji Takahashi(NEC) / Tetsuya Oishi(NTT)
Secretary Takefumi Hiraguri(NTT) / Gou Hasegawa(Ritsumeikan Univ.) / Haruo Ooishi(Bosco) / Eiji Takahashi(Fujitsu) / Tetsuya Oishi(NTT)
Assistant Yoshiaki Nishikawa(NEC) / Ryoichi Kataoka(KDDI Research) / Kimiko Kawashima(NTT) / Yoshifumi Kato(NTT) / Kotaro Mihara(NTT)

Paper Information
Registration To Technical Committee on Communication Quality / Technical Committee on Information and Communication Management / Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An adaptive spreading factor allocation method to dynamic environmental changes using Thermodynamical genetic algorithm for LoRaWAN
Sub Title (in English)
Keyword(1) Evolution of living things
Keyword(2) diversity
Keyword(3) TDGA
Keyword(4) GA
Keyword(5) LPWA
Keyword(6) Multi-objective optimization
1st Author's Name Yuki Fujita
1st Author's Affiliation Osaka University(Osaka Univ.)
2nd Author's Name Daichi Kominami
2nd Author's Affiliation Osaka University(Osaka Univ.)
3rd Author's Name Hideyuki Shimonishi
3rd Author's Affiliation Osaka University/NEC(Osaka Univ./NEC)
4th Author's Name Masayuki Murata
4th Author's Affiliation Osaka University(Osaka Univ.)
Date 2021-11-25
Paper # CQ2021-70
Volume (vol) vol.121
Number (no) CQ-263
Page pp.pp.29-34(CQ),
#Pages 6
Date of Issue 2021-11-18 (CQ)