Signal detection for OFDM/OQAM system using cyclostationary signatures

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.

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