Abstract
Ability of cognitive radio (CR) is the most promising solution to solve problems of a common wireless sensor network (WSN), which is assumed to assign a fixed frequency band. Cognitive radio sensor network (CRSN) is the combination of CR’s ability into WSN to improve spectrum utilization of each wireless sensor nodes. In order to avoid interference to other users in CRSN, reliable detection of the licensed user signal in the interested spectrum band is a pre-requirement. If we do not know any information about licensed user signal, energy detection will be optimal detection method. However, the energy detector is strongly affected by noise and shadowing of sensing environment. In this paper, we propose a novel spectrum sensing based on wavelet denoising with fuzzy to make cognitive radio users to be high reliable sensor in noisy sensing environment. The simulation results demonstrate the effectiveness of the proposed scheme.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Hur Y, Park J, Woo W, Lim K, Lee CH, Kim HS, Laskar J (2006) A wideband analog multi-resolution spectrum sensing (MRSS) technique for cognitive radio (CR) systems. In: Proceedings of IEEE international symposium, circuit and system, Greece, pp 4090–4093
Sahai A, Hoven N, Tandra R (2004) Some fundamental limits on cognitive radio. In: Proceedings of allerton conference on communications, control and computing, Monticello
Rioul O, Vetterli M (1991) Wavelets and signal processing. IEEE Signal Process Mag 14–38
Smith CB, Agaian S, Akopian D (2008) A wavelet-denoising approach using polynomial threshold operators. Signal Process Lett IEEE 15:906–909
Acknowledgments
“This work was supported by the KRF funded by the MEST (NRF-2012R1A1A2038831 and NRF-2013R1A2A2A05004535)”.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Vu-Van, H., Koo, I. (2014). A Novel Spectrum Sensing Scheme Based on Wavelet Denoising with Fuzzy for Cognitive Radio Sensor Networks. In: Park, J., Zomaya, A., Jeong, HY., Obaidat, M. (eds) Frontier and Innovation in Future Computing and Communications. Lecture Notes in Electrical Engineering, vol 301. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-8798-7_18
Download citation
DOI: https://doi.org/10.1007/978-94-017-8798-7_18
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-017-8797-0
Online ISBN: 978-94-017-8798-7
eBook Packages: EngineeringEngineering (R0)