| Presentation | 2022-08-25 Interference Cancellation for Coexistence of LoRaWAN with Wireless Power Transfer Ryota Kumada, Koichi Adachi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the advancement of IoT, wireless sensor networks (WSN) have been implemented in various applications. Low power wide area networks (LPWANs), which realize long-distance communication with low power consumption, are suitable for WSNs. In particular, long range wide area network (LoRaWAN) has been actively studied in recent years. Wireless power transfer (WPT) can charge the battery of mobile terminals by sending high-frequency signals. Because WPT can avoid stopping the system for battery replacement and unnecessitate wiring, it is being introduced into WSN systems. However, WPT may cause interference to other wireless communication systems using the same frequency band. In particular, systems such as LoRaWAN that operate in the unlicensed frequency band are in the same frequency band as WPT systems, so there is concern that WPT interference will degrade system performance. Thus, this paper proposes a WPT interference cancellation method. The proposed method estimates the initial phase of the interfering signal and removes the interfering signal from the received signal. Computer simulations results show that the proposed method can achieve almost the same symbol error rate (SER) performance as the system without interference, even under the influence of the WPT interference. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | WSN / LoRaWAN / Wireless Power Transfer / Interference Cancelling |
| Paper # | RCS2022-112 |
| Date of Issue | 2022-08-18 (RCS) |
| Conference Information | |
| Committee | SAT / RCS |
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| Conference Date | 2022/8/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tetsushi Ikegami(Meiji Univ.) / Kenichi Higuchi(Tokyo Univ. of Science) |
| Vice Chair | Masashi Kamei(NHK) / Takana Kaho(Shonan Inst. of Tech.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) |
| Secretary | Masashi Kamei(NTT) / Takana Kaho(NICT) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) |
| Assistant | Riichiro Nagareda(KDDI Research) / Yuuki Koizumi(NHK) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) |
| Paper Information | |
| Registration To | Technical Committee on Satellite Telecommunications / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Interference Cancellation for Coexistence of LoRaWAN with Wireless Power Transfer |
| Sub Title (in English) | |
| Keyword(1) | WSN |
| Keyword(2) | LoRaWAN |
| Keyword(3) | Wireless Power Transfer |
| Keyword(4) | Interference Cancelling |
| 1st Author's Name | Ryota Kumada |
| 1st Author's Affiliation | University of Electro-Communications(UEC) |
| 2nd Author's Name | Koichi Adachi |
| 2nd Author's Affiliation | University of Electro-Communications(UEC) |
| Date | 2022-08-25 |
| Paper # | RCS2022-112 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-164 |
| Page | pp.pp.84-89(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-08-18 (RCS) |