Cooperative Spectrum Sensing for Cognitive Radio Systems with Imperfect Reporting Channels

Jeong Woo LEE  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.11   pp.3629-3632
Publication Date: 2012/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3629
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
cooperative spectrum sensing,  wireless,  reporting channel,  fusion center,  

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A novel cooperative spectrum sensing scheme suitable for wireless cognitive radio system with imperfect reporting channels is proposed. In the proposed scheme, binary local decision bits are transmitted to the fusion center and combined to form a soft-valued decision statistics in the fusion center. To form a decision statistics, a majority-decision-aided weighting rule is proposed. The proposed scheme provides a reliable sensing capability even with poor reporting channels.