Blind cyclostationary statistics based carrier frequency offset and symbol timing delay estimators in flat-fading channels

Abstract

Blind carrier frequency offset and symbol timing delay estimators for linearly modulated waveforms transmitted through flat-fading channels have been previously developed by exploiting the received signal's second-order cyclostationary statistics in Ghogho et al., Gini and Giannakis (1998), and Scott and Olasz (1995). The goal of this paper is to establish and analyze the asymptotic (large sample) performance of the estimators of Ghogho et al. and Gini and Giannakis, as a function of the pulse shape bandwidth and the oversampling, factor. It is shown that the performance of these estimators improves as the pulse shape bandwidth increases and by selecting small values for the oversampling factor.