Non-data-aided carrier frequency offset estimation for OFDM and downlink DS-CDMA systems
(2001) IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings — Location: Atlantic City, NJ, USA (7.October.2001)
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- Abstract
- We address the problem of non-data aided frequency offset estimation for non-circular transmissions over frequency-selective channels in a downlink DS-CDMA system or an OFDM communications context. We observe that twice the frequency offset is a cyclic frequency of the received signal. We thus introduce an estimator relying on the maximisation of the empirical cyclocorrelations. We analyse its asymptotic behaviour and obtain a closed-form expression for the asymptotic covariance. This enables us to design relevant system parameters. Simulations are provided and confirm our assertions.
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Ciblat, P., & Vandendorpe, L. (2001). Non-data-aided carrier frequency offset estimation for OFDM and downlink DS-CDMA systems. IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings(Cat. No.01CH37211), Vol. 4, p. 2618-2622. https://doi.org/10.1109/VTC.2001.957225