2nd order cyclostationarity of OFDM signals: impact of pilot tones and cyclic prefix

Authors:
M. Adrat;J. Leduc;S. Couturier;M. Antweiler;H. Elders-Boll
Affiliations:
Research Establishment for Applied Science, FGAN/FKIE, Wachtberg, Germany;Research Establishment for Applied Science, FGAN/FKIE, Wachtberg, Germany;Research Establishment for Applied Science, FGAN/FKIE, Wachtberg, Germany;Research Establishment for Applied Science, FGAN/FKIE, Wachtberg, Germany;Cologne University of Applied Sciences, Cologne, Germany
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 5
Cited 0

Statistical spectral analysis: a nonprobabilistic theory

Statistical spectral analysis: a nonprobabilistic theory
Cyclostationarity: half a century of research

Signal Processing
Bibliography on cyclostationarity

Signal Processing
On the extraction of the channel allocation information in spectrum pooling systems

IEEE Journal on Selected Areas in Communications
Cyclostationary Signatures in Practical Cognitive Radio Applications

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper deals with 2nd order cyclostationarity of orthogonal frequency division multiplex (OFDM) signals. A new generalized formula for the spectral correlation density (SCD) function is derived. Compared to related work in the literature, our derivation is not restricted to the case that all sub-carriers of an OFDM signal carry statistically independent data. The reason for that is that correlated data in terms of pilot tones are typically introduced on different carriers for channel estimation and synchronization purposes. The new formula allows us to analyze the impact of such pilot tones on the SCD. In addition, it gives extra information about the impact of the cyclic prefix.