Breaking the SNR wall of spectrum sensing in cognitive radio by using the chaotic stochastic resonance

Author

He, Di

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China

fYear

2010

fDate

May 30 2010-June 2 2010

Firstpage

61

Lastpage

64

Abstract

A novel spectrum sensing technique in cognitive radio (CR) networks based on chaotic stochastic resonance (CSR) is proposed in this paper. By introducing the received signal into the CSR system, the signal-to-noise ratio (SNR) of the signal can be improved, which can lead to the decrease of the SNR wall in the traditional energy detector and reduce the sample complexity needed to reach certain detection performance. Theoretical analyses and computer simulations validate the effectiveness of the proposed CSR-based spectrum sensing approach.

Keywords

chaotic communication; cognitive radio; radio spectrum management; resonance; walls; CSR system; SNR; chaotic stochastic resonance; cognitive radio networks; signal-to-noise ratio; spectrum sensing technique; wall breaking; AWGN; Additive white noise; Chaos; Chromium; Cognitive radio; Computer simulation; Detectors; Helium; Signal to noise ratio; Stochastic resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on

Conference_Location

Paris

Print_ISBN

978-1-4244-5308-5

Electronic_ISBN

978-1-4244-5309-2

Type

conf

DOI

10.1109/ISCAS.2010.5537075

Filename

5537075