Maximum likelihood frequency detectors for orthogonal multicarrier systems
- 30 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 766-771
- https://doi.org/10.1109/icc.1993.397377
Abstract
A frequency estimation algorithm for a multicarrier system based on the maximum likelihood principle is derived. A frequency detector structure directly based on this algorithm is proposed, together with a reduced complexity structure having the same performance. Such a detector shows a very small acquisition range due to the particular form of the likelihood functions for a multicarrier sytem. To overcome this limitation, a modified version of the frequency detector is proposed. It has a considerably increased acquisition range together with low augmentation in complexity.<>Keywords
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