Cyclostationarity: half a century of research
Signal Processing
Bibliography on cyclostationarity
Signal Processing
Robust channel estimation for the OFDM-based WLAN systems with imperfect synchronization
Wireless Personal Communications: An International Journal
Universal linear precoding for NBI-proof widely linear equalization in MC systems
EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
Spectral correlation of multicarrier modulated signals and its application for signal detection
EURASIP Journal on Advances in Signal Processing - Special issue on advanced signal processing for cognitive radio networks
A data-aided symbol timing estimation algorithm for OFDM/OQAM systems
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Joint symbol timing and CFO estimation for OFDM/OQAM systems in multipath channels
EURASIP Journal on Advances in Signal Processing - Special issue on filter banks for next-generation multicarrier wireless communications
Packet format design and decision directed tracking methods for filter bank multicarrier systems
EURASIP Journal on Advances in Signal Processing - Special issue on filter banks for next-generation multicarrier wireless communications
Data-aided synchronization for OFDM/OQAM systems
Signal Processing
| Hi-index | 35.68 |
Like other orthogonal frequency division multiplexing (OFDM) systems, OFDM systems based on offset quadrature amplitude modulation (OFDM/OQAM) are very sensitive to carrier frequency offset. In this paper, a new blind carrier frequency offset estimator is developed for OFDM/OQAM systems by exploiting the noncircularity of the received OFDM/OQAM signal. Since the received signal exhibits conjugate cyclic frequencies at twice the carrier frequency offset, the frequency estimator is designed by maximizing a cost function expressed in terms of the sample conjugate cyclocorrelations. The theoretical asymptotic (large sample) performance analysis of the proposed estimator is established. Computer simulations are presented to illustrate the performance of the estimator. It is shown that the proposed estimator is very accurate whenever it is well initialized. Therefore, the proposed estimator appears to be very well adapted for a tracking mode rather than for an acquisition mode.