Title :
Cyclostationary detection of cognitive radio systems using GFDM modulation
Author :
Panaitopol, Dorin ; Datta, Rohit ; Fettweis, Gerhard
Author_Institution :
ComTech Dept., NEC Technol. (UK), Nanterre, France
Abstract :
A cognitive radio should be able to detect unused spectrum band and to change its transmission parameters in order to transmit within these free bands. To achieve this, reliable detection of incumbent signals as well as of other opportunistic signals that are using the said spectrum, is necessary. Generalized Frequency Division Multiplexing (GFDM) is a recent multicarrier modulation technique with extremely low out-of-band radiation that makes it an attractive choice for the PHY layer of cognitive radio. GFDM has an innovative tail biting cyclic prefix which shows unique circular detection properties. In this paper, we consider the cyclostationarity properties of GFDM and compare this with well studied OFDM. Detection of GFDM based opportunistic signal by cyclostationary detection is shown and compared to OFDM detection by the same method.
Keywords :
OFDM modulation; cognitive radio; cyclic codes; GFDM modulation; OFDM detection; PHY layer; cognitive radio systems; cyclostationary detection; generalized frequency division multiplexing; innovative tail biting cyclic prefix; multicarrier modulation technique; opportunistic signals; out-of-band radiation; transmission parameters; unique circular detection property; Cognitive radio; Delta modulation; Detectors; Modulation; Noise; OFDM;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0436-8
DOI :
10.1109/WCNC.2012.6214508