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ML estimation of time and frequency offset in OFDM systems
IEEE Transactions on Signal Processing · 1997 · Vol. 45(7) · pp. 1800–1805
Jaap van de Beek✉(Luleå University of Technology)Magnus Sandell(Luleå University of Technology)Per Ola Börjesson
Abstract
We present the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing (OFDM) systems. Redundant information contained within the cyclic prefix enables this estimation without additional pilots. Simulations show that the frequency estimator may be used in a tracking mode and the time estimator in an acquisition mode.
Advanced Wireless Communication TechniquesWireless Communication Networks ResearchPAPR reduction in OFDMOrthogonal frequency-division multiplexingCyclic prefixEstimatorCarrier frequency offsetFrequency offsetUTC offsetComputer scienceAlgorithmMaximum likelihoodMultiplexing
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References
BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise
IEEE Transactions on Communications · 1995 · 1,726 citations
Multicarrier modulation for data transmission: an idea whose time has come
IEEE Communications Magazine · 1990 · 3,439 citations
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IEEE Transactions on Communications · 1994 · 2,309 citations
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