In this paper, a novel feedback frequency synchronizer for orthogonal frequency-division multiplexing signals transmitted over multipath fading channels is described. Its derivation is based on maximum-likelihood estimation techniques and assumes an approximate statistical knowledge of the communication channel. The performance of the proposed algorithm is assessed by computer simulation, and is compared with that provided by other synchronization algorithms and with Cramer-Rao bounds.
Maximum-likelihood frequency recovery for OFDM signals transmitted over multipath fading channels / Chiavaccini, E.; Vitetta, Giorgio Matteo. - In: IEEE TRANSACTIONS ON COMMUNICATIONS. - ISSN 0090-6778. - STAMPA. - 52:2(2004), pp. 244-251. [10.1109/TCOMM.2003.822706]
Maximum-likelihood frequency recovery for OFDM signals transmitted over multipath fading channels
VITETTA, Giorgio Matteo
2004
Abstract
In this paper, a novel feedback frequency synchronizer for orthogonal frequency-division multiplexing signals transmitted over multipath fading channels is described. Its derivation is based on maximum-likelihood estimation techniques and assumes an approximate statistical knowledge of the communication channel. The performance of the proposed algorithm is assessed by computer simulation, and is compared with that provided by other synchronization algorithms and with Cramer-Rao bounds.
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