| Presentation | 2022-11-07 [Invited Talk] Implementation of Packet Level-Index Modulation Mai Ohta, Takeo Fujii, Koich Adachi, Osamu Takyu, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Packet-Level Index Modulation (PLIM) for Low Power Wide Area (LPWA) as a method to increase the number of transmitted bits under various constraints has been proposed. In LPWA, a communication time ratio called duty cycle and low power consumption for battery operation are mandatory conditions. LoRaWAN (Long Range WAN) is one of the standards used for LPWA. In LoRa, information is transmitted by LoRa modulation using chirp modulation, and it is difficult to increase the number of transmission bits because the duty cycle must be satisfied. Therefore, PLIM has been proposed to increase the number of transmitted information bits by adding information to the frequency and time indices of packets while performing packet communication. When information is added to the index of a packet, the amount of information by the indexes is limited by the number of frequency index and time index. In addition, since LoRaWAN is used in systems that transmit packets at regular intervals, such as IoT, there is a possibility of continuous collisions between nodes due to periodic transmission if packets are transmitted continuously with the same index. Furthermore, PLIM requires time synchronization between transmitter and receiver, especially when time indexes are detected. This presentation introduces the periodic packet collision avoidance scheme and synchronization-free differential PLIM that we have studied, and reports on our current research for the implementation of PLIM, which is being conducted as a research project commissioned by the Ministry of Internal Affairs and Communications. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Low Power Wide Area / Packet-Level Index Modulation / Differential Packet-Level Index Modulation |
| Paper # | SR2022-50 |
| Date of Issue | 2022-10-31 (SR) |
| Conference Information | |
| Committee | SR |
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| Conference Date | 2022/11/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukuoka University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Defined Radio, Cognitive Radio, Spectrum Sharing, etc. |
| Chair | Suguru Kameda(Hiroshima Univ.) |
| Vice Chair | Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) |
| Secretary | Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT) |
| Assistant | Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) |
| Paper Information | |
| Registration To | Technical Committee on Smart Radio |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Talk] Implementation of Packet Level-Index Modulation |
| Sub Title (in English) | |
| Keyword(1) | Low Power Wide Area |
| Keyword(2) | Packet-Level Index Modulation |
| Keyword(3) | Differential Packet-Level Index Modulation |
| 1st Author's Name | Mai Ohta |
| 1st Author's Affiliation | Fukuoka University(Fukuoka Univ.) |
| 2nd Author's Name | Takeo Fujii |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| 3rd Author's Name | Koich Adachi |
| 3rd Author's Affiliation | The University of Electro-Communications(UEC) |
| 4th Author's Name | Osamu Takyu |
| 4th Author's Affiliation | Shinsyu University(Shinsyu Univ.) |
| Date | 2022-11-07 |
| Paper # | SR2022-50 |
| Volume (vol) | vol.122 |
| Number (no) | SR-243 |
| Page | pp.pp.29-29(SR), |
| #Pages | 1 |
| Date of Issue | 2022-10-31 (SR) |