Presentation 2018-05-17
Evaluation of LoRa Radio Propagation and LoRa Base Station Placement Algorithm in Urban Regions
Zijian Zhao, Hamid Farhady, Akihiro Nakao,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, IoT sensors become to be used in various fields rapidly. Usually, these IoT sensors are setup for years in a wide area, collect and upload a small amount of data periodically. Therefore, the IoT sensors have a high demand for battery life and the radio propagation coverage, while not the bandwidth. In order to serve this kind of devices, based on the LPWA standard, a new type network Lora, is proposed. LoRa's base station(BS) placement problem is also an important part of LoRa network design. However, due to the radio propagation features of LoRa, especially when applied to an urban area with many obstacle buildings, we need to rethink the LoRa’s BS placement approach. In this article, we get data by simulating the radio propagation in UT hongo-campus, and utilize a hypergeometric distribution method that based on heuristic algorithm, to find a BS placement solution that is able to guarantee the required coverage, RSSI and number of BSs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IoT / LoRa radio propagation / base station placement / LoRa network construction
Paper # ICM2018-3
Date of Issue 2018-05-10 (ICM)

Conference Information
Committee ICM / IPSJ-CSEC / IPSJ-IOT
Conference Date 2018/5/17(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kiyohito Yoshihara(KDDI Research)
Vice Chair Yoichi Yamashita(NTT Neomeit) / Takumi Miyoshi(Shibaura Inst. Tech.)
Secretary Yoichi Yamashita(KDDI Research) / Takumi Miyoshi(NTT)
Assistant Yuncheng Zhu(Hitachi)

Paper Information
Registration To Technical Committee on Information and Communication Management / Special Interest Group on Computer Security / Special Interest Group on Internet and Operation Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of LoRa Radio Propagation and LoRa Base Station Placement Algorithm in Urban Regions
Sub Title (in English)
Keyword(1) IoT
Keyword(2) LoRa radio propagation
Keyword(3) base station placement
Keyword(4) LoRa network construction
1st Author's Name Zijian Zhao
1st Author's Affiliation The University of Tokyo(UT)
2nd Author's Name Hamid Farhady
2nd Author's Affiliation The University of Tokyo(UT)
3rd Author's Name Akihiro Nakao
3rd Author's Affiliation The University of Tokyo(UT)
Date 2018-05-17
Paper # ICM2018-3
Volume (vol) vol.118
Number (no) ICM-39
Page pp.pp.33-38(ICM),
#Pages 6
Date of Issue 2018-05-10 (ICM)