5th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Cooperative sensing with adaptive sensing ranges in cognitive radio ad-hoc networks

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  • @INPROCEEDINGS{10.4108/ICST.CROWNCOM2010.9175,
        author={Jongwon Shim and Qi Cheng and Venkatesh Sarangan},
        title={Cooperative sensing with adaptive sensing ranges in cognitive radio ad-hoc networks},
        proceedings={5th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2010},
        month={9},
        keywords={Ad hoc networks Chromium Cognitive radio Interference Radio transmitters Receivers Sensors},
        doi={10.4108/ICST.CROWNCOM2010.9175}
    }
    
  • Jongwon Shim
    Qi Cheng
    Venkatesh Sarangan
    Year: 2010
    Cooperative sensing with adaptive sensing ranges in cognitive radio ad-hoc networks
    CROWNCOM
    IEEE
    DOI: 10.4108/ICST.CROWNCOM2010.9175
Jongwon Shim1,*, Qi Cheng2,*, Venkatesh Sarangan1,*
  • 1: Department of Computer Science, Oklahoma State University, Stillwater, Oklahoma 74078
  • 2: School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078
*Contact email: jongwon@cs.okstate.edu, qi.cheng@okstate.edu, saranga@cs.okstate.edu

Abstract

Cognitive radio has been proposed as an innovative and effective technology to exploit the efficient reuse of the precious radio spectrum. In spectrum sensing which is a crucial step in cognitive radio networks, an adequate sensing range needs to be defined to avoid the hidden transmitter/receiver problems. Moreover, a secondary user may have unreliable detection of the existent primary users due to multipath fading and/or shadowing. To solve these issues, we propose a cooperative spectrum sensing scheme with adaptive sensing ranges, especially for the hidden receiver problem. We explain the idea of using the adaptive sensing range at a secondary user transmitter and show with the simulation results that cooperative spectrum sensing with adaptive sensing ranges achieves a higher detection accuracy than that with a fixed sensing range.