Spectrum Sensing in Multi-user Cognitive Radio Networks

Yunxiao Zu, Tao Chen, Junjie Ding, Bin Hou, Dongjing Hu

School of Electronic Engineering, Beijing University of Posts and Telecommunication, Beijing, China.

DOI: 10.4236/cn.2013.53B2006                

Abstract

Spectrum sensing is studied for multi-user cognitive radio networks in this paper. An improved spectrum sensing method----energy-cooperative detection method is developed, which combines the double threshold energy detecting method with the “OR” fusion decision rule. The simulation is done for both AWGN channel and Rayleigh channel, and the advantages of the improved method are verified.

Keywords

Cognitive Radio; Spectrum Detection; Energy Detection; Double-Threshold; Fusion Decision

Conflicts of Interest

The authors declare no conflicts of interest.

References

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