Channel equalization in filter bank based multicarrier modulation for wireless communications
EURASIP Journal on Applied Signal Processing
Non-Data-Aided Timing Recovery for Filter-Bank Multicarrier Wireless Communications
IEEE Transactions on Signal Processing
Analysis and design of OFDM/OQAM systems based on filterbank theory
IEEE Transactions on Signal Processing
Filter bank modulation techniques for very high speed digital subscriber lines
IEEE Communications Magazine
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
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In this paper we consider the problem of data-aided synchronization in the up-link of a multiple access (MA) orthogonal frequency division multiplexing (OFDM) system based on offset quadrature amplitude modulation (OQAM). In particular, the joint maximum-likelihood (ML) phase offset and symbol timing estimator exploiting a short known preamble embedded in the burst received from each of U users is derived. Since the waveforms of the different users are nearly orthogonal, the ML approach leads to U different joint phase offset and symbol timing estimators. Moreover, for each user the phase estimate is in closed form, and, then, the symbol timing estimator requires only an one-dimensional maximization procedure. The performance of the proposed ML estimator is assessed via computer simulations both in AWGN and multipath channel, and for three different allocation schemes.