Blind phase recovery in general QAM communication systems using alternative higher order statistics

Blind phase recovery for square QAM communication systems using higher order statistics is well established. It is demonstrated that this method can be adapted for cross QAM constellations, if alternative fourth-order statistics are used. However, a four quadrant inverse tangent function must now be...

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Bibliographic Details
Published in:IEEE signal processing letters 1999-12, Vol.6 (12), p.327-329
Main Author: Cartwright, K.V.
Format: Article
Language:English
Subjects:
Blinds
Communication systems
Constellations
Equations
Gaussian noise
Higher order statistics
Inverse
Phase estimation
Quadrature amplitude modulation
Random variables
Recovery
Signal processing
Simulation
Statistics
Tangents
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Summary:Blind phase recovery for square QAM communication systems using higher order statistics is well established. It is demonstrated that this method can be adapted for cross QAM constellations, if alternative fourth-order statistics are used. However, a four quadrant inverse tangent function must now be used. Monte Carte simulation provides evidence of the usefulness of the approach.
ISSN:1070-9908
1558-2361
DOI:10.1109/97.803437