| Presentation | 2021-05-21 [Technology Exhibit] USRP Implementation of Synchronized SS-CDMA Transmission Timing Control Function Using Wi-Wi Yusaku Honma, Suguru Kameda, Noriharu Suematsu, Satoshi Yasuda, Nobuyasu Shiga, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Synchronized spread spectrum code division multiple access (SS-CDMA) is very effective for increasing the capacity and reducing the interference with a rapid spread of Internet of things (IoT) devices. Since the synchronized SS-CDMA requires to receive timing synchronization, it is essential to realize transmission timing control of each node using space-time synchronization. In this paper, we investigate precise time synchronization between nodes using wireless two-way interferometry (Wi-Wi). The measurement results show that the precision of initial timing synchronization of the Wi-Wi module (3σ) is nearly equal to 400 ns. Furthermore, we implement transmission timing control function on Universal Software Radio Peripheral (USRP) synchronized by reference signals of Wi-Wi module. As a result of the measurement evaluation of the implemented system, it is realized that the transmission timing is controlled at the accuracy of the sampling rate of USRP. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | synchronized SS-CDMA / transmission timing control / time synchronization / software defined radio |
| Paper # | SR2021-17 |
| Date of Issue | 2021-05-13 (SR) |
| Conference Information | |
| Committee | SR |
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| Conference Date | 2021/5/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Radio, Machine Learning for Wireless Communication, etc. |
| Chair | Masayuki Ariyoshi(NEC) |
| Vice Chair | Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) |
| Secretary | Suguru Kameda(ATR) / Osamu Takyu(Univ. of Electro-Comm.) / Kentaro Ishidu(Mie Univ.) |
| Assistant | Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) |
| 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) | [Technology Exhibit] USRP Implementation of Synchronized SS-CDMA Transmission Timing Control Function Using Wi-Wi |
| Sub Title (in English) | |
| Keyword(1) | synchronized SS-CDMA |
| Keyword(2) | transmission timing control |
| Keyword(3) | time synchronization |
| Keyword(4) | software defined radio |
| 1st Author's Name | Yusaku Honma |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ) |
| 2nd Author's Name | Suguru Kameda |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ) |
| 3rd Author's Name | Noriharu Suematsu |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ) |
| 4th Author's Name | Satoshi Yasuda |
| 4th Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 5th Author's Name | Nobuyasu Shiga |
| 5th Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| Date | 2021-05-21 |
| Paper # | SR2021-17 |
| Volume (vol) | vol.121 |
| Number (no) | SR-30 |
| Page | pp.pp.113-119(SR), |
| #Pages | 7 |
| Date of Issue | 2021-05-13 (SR) |