Experimental evaluation of transmission timing control method for QZSS short message synchronized SS-CDMA communication

Kei Ohya, Suguru Kameda, Hiroshi Oguma, Noriharu Suematsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

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 great 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. However, an error may occur in the satellite reception timing due to the terminal time deviation and the calculation error of propagation delay to the satellite. In this paper, we measure the terminal time deviation and the propagation delay calculation error at the same time and evaluate the satellite reception timing error of the uplink signal. By this measurement, it is shown that satellite reception timing error within 50 ns can be realized in 99.98% of mobile terminals (MTs). This shows that high-density use multiple access can be realized by transmission timing control method using satellite positioning signals.

Original languageEnglish
Title of host publicationICUFN 2017 - 9th International Conference on Ubiquitous and Future Networks
PublisherIEEE Computer Society
Pages361-366
Number of pages6
ISBN (Electronic)9781509047499
DOIs
Publication statusPublished - 2017 Jul 26
Event9th International Conference on Ubiquitous and Future Networks, ICUFN 2017 - Milan, Italy
Duration: 2017 Jul 42017 Jul 7

Publication series

NameInternational Conference on Ubiquitous and Future Networks, ICUFN
ISSN (Print)2165-8528
ISSN (Electronic)2165-8536

Other

Other9th International Conference on Ubiquitous and Future Networks, ICUFN 2017
CountryItaly
CityMilan
Period17/7/417/7/7

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture

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