Patent ID: 7551691

Claim:
A receiver for a multi-carrier communication system, the receiver comprising: a channel corrector for receiving an input signal and a correction control signal to correct an amplitude and a phase of the input signal to obtain a corrected signal, and a channel estimator comprising: a slicer for performing a hard-decision on the corrected signal to obtain a decided signal, the correction control signal being dependent on a difference between the input signal and the decided signal to decrease said difference; an initial estimator for estimating an initial estimate of the correction control signal based on pilot symbols in the input signal; a comparing circuit for comparing the input signal with the decided signal to obtain a difference signal; and a filter for weighting the difference signal and the initial estimate, wherein the filter is further configured to generate an updated channel estimate, the updated channel estimate being defined as: EC=αNE− (1−α) IE, where EC is the updated channel estimate, NE is the difference signal, IE is the initial estimate, and α is a predefined value.