TY - GEN
T1 - Construction of transmission timing control system using FPGA for QZSS short message synchronized SS-CDMA communication
AU - Kawai, Rei
AU - Oguma, Hiroshi
AU - Kameda, Suguru
AU - Suematsu, Noriharu
N1 - Funding Information:
ACKNOWLEDGMENT A part of this work is supported by JSPS KAKENHI Grant Number JP16H04361.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/12
Y1 - 2017/12/12
N2 - We have proposed synchronized Spread-Spectrum Code-Division Multiple-Access (SS-CDMA) communication for location and short message communication system using Quasi-Zenith Satellite System (QZSS) as a safety confirmation system at the time of grade disaster. In this communication, the satellite reception timings of all uplink signals are synchronized using transmission timing control method in order to realize high-density user multiple access. Transmission timing control is performed using positioning / timing information obtained from QZSS and Global Positioning System (GPS). In this paper, we construct a transmission timing control system using Field Programmable Gate Array (FPGA) and evaluate transmission timing control error. As a result of the measurement, it is found that the transmission timing control error increases in proportion to the delay time, and it affects the satellite reception timing of the signal.
AB - We have proposed synchronized Spread-Spectrum Code-Division Multiple-Access (SS-CDMA) communication for location and short message communication system using Quasi-Zenith Satellite System (QZSS) as a safety confirmation system at the time of grade disaster. In this communication, the satellite reception timings of all uplink signals are synchronized using transmission timing control method in order to realize high-density user multiple access. Transmission timing control is performed using positioning / timing information obtained from QZSS and Global Positioning System (GPS). In this paper, we construct a transmission timing control system using Field Programmable Gate Array (FPGA) and evaluate transmission timing control error. As a result of the measurement, it is found that the transmission timing control error increases in proportion to the delay time, and it affects the satellite reception timing of the signal.
KW - Code-Division Multiple-Access (CDMA)
KW - Field Programmable Gate Array (FPGA)
KW - Global Positioning System (GPS)
KW - Quasi-Zenith Satellite System (QZSS)
KW - Satellite Communication
KW - Spread Spectrum (SS)
UR - http://www.scopus.com/inward/record.url?scp=85046902822&partnerID=8YFLogxK
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U2 - 10.1109/ICTC.2017.8190972
DO - 10.1109/ICTC.2017.8190972
M3 - Conference contribution
AN - SCOPUS:85046902822
T3 - International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017
SP - 217
EP - 222
BT - International Conference on Information and Communication Technology Convergence
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Information and Communication Technology Convergence, ICTC 2017
Y2 - 18 October 2017 through 20 October 2017
ER -