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

Research Article

Achievable Capacity of Cognitive Radio Systems Coexisting with a Macro Cellular System

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  • @INPROCEEDINGS{10.4108/icst.crowncom.2011.245822,
        author={Hiromasa Fujii and Shunji Miura and Hidetoshi Kayama},
        title={Achievable Capacity of Cognitive Radio Systems Coexisting with a Macro Cellular System},
        proceedings={6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2012},
        month={5},
        keywords={Analytical capacity cognitive radio system macro cellular system},
        doi={10.4108/icst.crowncom.2011.245822}
    }
    
  • Hiromasa Fujii
    Shunji Miura
    Hidetoshi Kayama
    Year: 2012
    Achievable Capacity of Cognitive Radio Systems Coexisting with a Macro Cellular System
    CROWNCOM
    IEEE
    DOI: 10.4108/icst.crowncom.2011.245822
Hiromasa Fujii1,*, Shunji Miura1, Hidetoshi Kayama1
  • 1: Research Laboratories, NTT DOCOMO, Inc., 3-6 Hikari-no-oka, Yokosuka, Kanagawa, Japan
*Contact email: fujiihir@nttdocomo.co.jp

Abstract

A theoretical analysis of achievable capacity by a cognitive radio systems is discussed, when the cognitive radio system (CRS) uses spectrum allocated to a macro cellular system. As for the spectrum sharing mechanisms, we consider two methods based on listen-before-talk and adaptive transmit power control principles. Moreover, outdoor and indoor installations of CRS stations are investigated. Numerical results reveal capacities achieved by CRS base stations installed within the coverage area of the macro cell system.