Presentation 2022-11-08
[Technology Exhibit] Measurement Evaluation of Time-Synchronization Offset of Wireless Two-Way Interferometry (Wi-Wi)
Serena Akasaka, Suguru Kamda, Satoshi Yasuda, Nobuyasu Shiga,
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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 space-time synchronization. The wireless two-way interferometry (Wi-Wi) is used for precise time synchronization between nodes. In this paper, we evaluate error of initial timing synchronization (offset) of the Wi-Wi module in several conditions. Since the standard deviation of offset was less than 30 ns in all of the measured conditions, it was shown that Wi-Wi is capable of high-precision initial timing synchronization.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) synchronized SS-CDMA / transmission timing control / time synchronization / offset
Paper # SR2022-64
Date of Issue 2022-10-31 (SR)

Conference Information
Committee SR
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
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Technology Exhibit] Measurement Evaluation of Time-Synchronization Offset of Wireless Two-Way Interferometry (Wi-Wi)
Sub Title (in English)
Keyword(1) synchronized SS-CDMA
Keyword(2) transmission timing control
Keyword(3) time synchronization
Keyword(4) offset
1st Author's Name Serena Akasaka
1st Author's Affiliation Hiroshima University(Hiroshima Univ.)
2nd Author's Name Suguru Kamda
2nd Author's Affiliation Hiroshima University(Hiroshima Univ.)
3rd Author's Name Satoshi Yasuda
3rd Author's Affiliation National Institute of Information and Communications Technology(NICT)
4th Author's Name Nobuyasu Shiga
4th Author's Affiliation National Institute of Information and Communications Technology(NICT)
Date 2022-11-08
Paper # SR2022-64
Volume (vol) vol.122
Number (no) SR-243
Page pp.pp.101-104(SR),
#Pages 4
Date of Issue 2022-10-31 (SR)