Presentation 2019-06-10
Co-existence of Synchronous and Asynchronous Protocols for Wireless IoT Systems in 920 MHz-band
Kiyoshi Mizutani, Ryota Okumura, Keiichi Mizutani, Hiroshi Harada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, the utilization of the 920 MHz band for the Internet of Things (IoT) has been rapidly spreading because of advantages of excellent radio wave reachability and less interference, and development and implementation of large-scale wireless multi-hop networks in the 920 MHz-band for IoT using interference avoidance technology such as Media Access Control (MAC) protocol and frequency hopping have been promoted. The typical systems in the 920 MHz-band are the Time Slotted Channel Hopping (TSCH) method (i.e., a synchronous MAC protocol compliant with IEEE 802.15.4/4e)-based system, and the Wireless Smart Utility Network Field Area Network (Wi-SUN FAN) system that uses an asynchronous MAC protocol compliant with IEEE 802.15.4. Both systems have already been commercialized and the inter-system interference that occurs when systems using these different MAC protocols share the same frequency channel band in 920 MHz-band should be concerned. In order to discuss the co-existence possibility of heterogeneous wireless communication systems based on these different protocols, it is necessary to quantitatively evaluate intra-system interference and inter-system interference of each system. In this report, we evaluate the case of simultaneously operating of the synchronous system based on TSCH and the Wi-SUN FAN system based on asynchronous MAC protocol by computer simulation and study the possibility of co-existence.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 920 MHz-band / Wi-SUN / FAN profile / TSCH / MAC protocol
Paper # SRW2019-7
Date of Issue 2019-06-03 (SRW)

Conference Information
Committee SRW
Conference Date 2019/6/10(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Anritsu
Topics (in Japanese) (See Japanese page)
Topics (in English) WLAN, WPAN, Ad-hoc, mmWave, etc.
Chair Satoshi Denno(Okayama Univ.)
Vice Chair Keiichi Mizutani(Kyoto Univ.)
Secretary Keiichi Mizutani(Tokyo Inst. of Tech.)
Assistant Hanako Noda(Anritsu) / Tomoki Murakami(NTT)

Paper Information
Registration To Technical Committee on Short Range Wireless Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Co-existence of Synchronous and Asynchronous Protocols for Wireless IoT Systems in 920 MHz-band
Sub Title (in English)
Keyword(1) 920 MHz-band
Keyword(2) Wi-SUN
Keyword(3) FAN profile
Keyword(4) TSCH
Keyword(5) MAC protocol
1st Author's Name Kiyoshi Mizutani
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Ryota Okumura
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Keiichi Mizutani
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
4th Author's Name Hiroshi Harada
4th Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2019-06-10
Paper # SRW2019-7
Volume (vol) vol.119
Number (no) SRW-73
Page pp.pp.35-40(SRW),
#Pages 6
Date of Issue 2019-06-03 (SRW)