Abstract—Almost 80 to 90 percent of the radio spectrum is
left unutilized at any period of time, while at the same time
some other regions of spectrum experience overcrowding. A
cognitive radio is a smart radio that can identify the idle
frequencies (also termed as spectral holes or white spaces) and
allot them for the use of unlicensed secondary users. The basic
functionality of a cognitive radio is to sense the spectrum
accurately by avoiding any chances for interfering with
primary or licensed users. Spectrum sensing can be performed
either in cooperative or non-cooperative method. This paper,
performs cooperative spectrum sensing, using the amplify and
forward based relay technique. The idea is to utilize relay
nodes to convey the signal transmitted from primary user to
the fusion center and then estimate the presence or absence of
primary activities in the spectrum. The cyclostationary feature
detection is the spectrum sensing method used here. Bit error
rates for the UWB channel models (CM1/CM2/CM3/CM4) are
calculated and compared.
Index Terms—Cognitive radio, cooperative spectrum
sensing, cyclostationary feature detection, ultra-wideband
(UWB) communications.
Aparna P. S. is with the Electronics and Communication Department of
Prime College of Engineering, University of Calicut, Kerala, India (e-mail:
aparna.surendran@gmail.com).
M. Jayasheela is with the Electronics and Communication Department
of SNS College of Technology, Coimbatore, Anna University, India (email:
jayasheela.ece.snsct@gmail.com).
[PDF]
Cite:Aparna P. S. and M. Jayasheela, "Cyclostationary Feature Detection in Cognitive Radio for
Ultra-Wideband Communication Using Cooperative
Spectrum Sensing," International Journal of Future Computer and Communication vol. 2, no. 6, pp. 249, 2013.
