Title :
Signal detection for OFDM/OQAM system using cyclostationary signatures
Author :
Zhang, Haijian ; Ruyet, Didier Le ; Terre, Michel
Author_Institution :
Electron. & Commun. Lab., CNAM, Paris
Abstract :
The purpose of this paper is to analyze orthogonal frequency division multiplexing carrying offset QAM (OFDM/OQAM) signal detection using cyclostationary signatures, which are artificially embedded into digital modulated signals. The spectral correlation characterization of OFDM/OQAM signal can be described by a special linear periodic time-variant (LPTV) system. Using this description we have derived the explicit theoretical formulas of cyclic autocorrelation function (CAF) and spectral correlation function (SCF) for OQAM signal. A low-complexity cyclostationary signature detector can be utilized for OQAM signal detection, and experimental results show the advantages of this signature detector.
Keywords :
OFDM modulation; quadrature amplitude modulation; signal detection; OFDM-OQAM system; cyclic autocorrelation function; cyclostationary signatures; digital modulated signal; linear periodic time-variant system; orthogonal frequency division multiplexing carrying Offset; signal detection; spectral correlation function; Autocorrelation; Cognitive radio; Detectors; Filter bank; OFDM modulation; Quadrature amplitude modulation; Shape; Signal analysis; Signal detection; Signal processing;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699660
