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7th International Conference on Cognitive Radio Oriented Wireless Networks

Research Article

Detection Error Aware Spectrum Handoff Mechanism for Cognitive Radios

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  • @INPROCEEDINGS{10.4108/icst.crowncom.2012.248462,
        author={Pedro Smith Coutinho and Marcel William Rocha da Silva and Jos\^{e} Ferreira de Rezende},
        title={Detection Error Aware Spectrum Handoff Mechanism for Cognitive Radios},
        proceedings={7th International Conference on Cognitive Radio Oriented Wireless Networks},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2012},
        month={7},
        keywords={cognitive radio spectrum handoff channel selection spectrum sensing},
        doi={10.4108/icst.crowncom.2012.248462}
    }
    
  • Pedro Smith Coutinho
    Marcel William Rocha da Silva
    José Ferreira de Rezende
    Year: 2012
    Detection Error Aware Spectrum Handoff Mechanism for Cognitive Radios
    CROWNCOM
    IEEE
    DOI: 10.4108/icst.crowncom.2012.248462
Pedro Smith Coutinho1,*, Marcel William Rocha da Silva1, José Ferreira de Rezende1
  • 1: Universidade Federal do Rio de Janeiro
*Contact email: coutinho@land.ufrj.br

Abstract

Spectrum handoff is a key mechanism for proper and efficient operation of cognitive radios. A handoff occurs when the current operating channel must be freed by secondary users due to the arrival of a primary user. This mechanism is responsible for searching for a new idle licensed channel for secondary use, a task known as channel selection. The order in which the channels are sensed during the handoff has a great impact on performance. This paper proposes a new spectrum handoff scheme that considers the existence of errors in primary user detection to achieve a better channel ordering in terms of spectrum utilization efficiency and primary user interference. Simulation results show that the proposed mechanism outperforms other mechanisms from the literature.

Keywords
cognitive radio spectrum handoff channel selection spectrum sensing
Published
2012-07-24
Publisher
IEEE
http://dx.doi.org/10.4108/icst.crowncom.2012.248462
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