6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

An Investigation into the Spectrum Occupancy in Japan in the Context of TV White Space Systems

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  • @INPROCEEDINGS{10.4108/icst.crowncom.2011.245857,
        author={Soraya  Contreras and Gabriel Villardi and Ryuhei Funada and Hiroshi Harada},
        title={An Investigation into the Spectrum Occupancy in Japan in the Context of TV White Space Systems},
        proceedings={6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2012},
        month={5},
        keywords={Spectrum Occupancy Cognitive Radio White Space Communications Digital TV},
        doi={10.4108/icst.crowncom.2011.245857}
    }
    
  • Soraya Contreras
    Gabriel Villardi
    Ryuhei Funada
    Hiroshi Harada
    Year: 2012
    An Investigation into the Spectrum Occupancy in Japan in the Context of TV White Space Systems
    CROWNCOM
    IEEE
    DOI: 10.4108/icst.crowncom.2011.245857
Soraya Contreras1,*, Gabriel Villardi2, Ryuhei Funada2, Hiroshi Harada2
  • 1: Télécom Bretagne, Brest, France
  • 2: National Institute of Information and Communications Technology, Yokosuka, Japan
*Contact email: soraya.contreras@telecom-bretagne.eu

Abstract

This paper presents the results of spectrum occupancy measurements carried out in three locations of Kanto area in Japan. Moreover, the collected data corresponding to DTV broadcasting service is analyzed to evaluate the possibilities of secondary systems operating in TV White Spaces (TVWS) in the framework of FCC regulations and Japanese standards. Appropriate propagation models are considered for analyzing the conditions of operation for both, fixed and portable unlicensed devices.