Methods and apparatuses for signaling with geometric constellations in a raleigh fading channel

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United States of America Patent

PATENT NO 9743290
SERIAL NO

14943003

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Abstract

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Communication systems are described that use signal constellations, which have unequally spaced (i.e. ‘geometrically’ shaped) points. In many embodiments, the communication systems use specific geometric constellations that are capacity optimized at a specific SNR, over the Raleigh fading channel. In addition, ranges within which the constellation points of a capacity optimized constellation can be perturbed and are still likely to achieve a given percentage of the optimal capacity increase compared to a constellation that maximizes dmin, are also described. Capacity measures that are used in the selection of the location of constellation points include, but are not limited to, parallel decode (PD) capacity and joint capacity.

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Patent Owner(s)

  • CONSTELLATION DESIGNS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barsoum, Maged F Saratoga, US 63 1602
Jones, Christopher R Pacific Palisades, US 120 3198

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