Title :
Second-Order Cyclostationarity of Cyclically Prefixed Single Carrier Linear Digital Modulations with Applications to Signal Recognition
Author :
Dobre, O.A. ; Zhang, Q. ; Rajan, S. ; Inkol, R.
Author_Institution :
Memorial Univ. of Newfoundland, St. John´´s, NL
Abstract :
The second-order cyclostationarity of cyclically prefixed single carrier linear digital (CP-tSCLD) modulated signals is investigated with emphasis on its applicability to signal recognition. Analytical closed-form expressions for the second-order (one-conjugate) cyclic cumulants (CCs) and the set of cycle frequencies (CFs) for CP-SCLD modulated signals are derived. Based on these results, an algorithm is proposed for the recognition of CP-tSCLD against SCLD and orthogonal frequency division multiplexing (OFDM) signals. This algorithm obviates the need for signal pre-processing tasks, such as symbol timing, carrier and waveform recovery and estimation of signal and noise powers.
Keywords :
OFDM modulation; estimation theory; signal processing; waveform analysis; CP-SCLD modulated signals; carrier recovery; closed-form expressions; cycle frequency; cyclically prefixed single carrier linear digital modulations; noise powers; orthogonal frequency division multiplexing signals; second-order cyclic cumulants; second-order cyclostationarity; signal estimation; signal pre-processing tasks; signal recognition; symbol timing; waveform recovery; Baseband; Carbon capture and storage; Closed-form solution; Constellation diagram; Digital modulation; Fading; OFDM modulation; Phase shift keying; Quadrature amplitude modulation; Sampling methods;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.675
