认知无线电网络中物理层频谱检测算法的研究

doi:10.3969/j.issn.1000-0801.2009.03.019

Abstract

Abstract:

Spectrum sensing is one of critical techniques in cognitive radio network. In this paper，spectrum sensing algorithms of physical layer are studied. Above all，the sensing performance and the complexity of the classical spectrum sensing algorithms are described in the scenario of CRN application. Then，a series of improved algorithms and some novel algorithms based on the difference between the correlation of the target signal and the noise are proposed，in order to overcome the drawbacks of the classical spectrum sensing algorithms. Furthermore，classification and comparison for these algorithms are developed consequently. In addition，the CRN sensing scheme is presented，which combines the advantages of different algorithms. Finally，some prospects on this subject are given at the end of this paper.

Key words: cognitive radio network, spectrum hole, spectrum sensing, physical layer sensing

Ziqi Liu,Chunyan， Feng,Zhimin Zeng,Caili Guo. Study on Spectrum Sensing Algorithms of Physical Layer in Cognitive Radio Network[J]. Telecommunications Science, 2009, 25(3): 64-69.

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Study on Spectrum Sensing Algorithms of Physical Layer in Cognitive Radio Network

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