Computer Science ›› 2013, Vol. 40 ›› Issue (Z11): 22-25.

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Compressed Sensing-based Cooperative Spectrum Detection Algorithm Based on Signal Dependability

LI Na,CHEN Song,WANG Sheng and LI Ou   

  • Online:2018-11-16 Published:2018-11-16

Abstract: Compressed sensing provides a new way for broad band spectrum sensing in cognitive radio.According to the principle of compressed sensing,a cooperative spectrum detection algorithm based on signal dependability is proposed,which is used in the scenario of multiple cooperated cognitive users.The quality of signal that users received is used as the dependability in this algorithm,while the spectrum occupation is determined by Orthogonal Matching Tracking algorithm.Simulation results show that the proposed algorithm performs better than traditional ones in the conditions of different signal-noise ratio,and the detection performance is improved with low complexity.

Key words: Cognitive radio(CR),Compressed sensing,Cooperative spectrum detection,Signal dependability

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