Geometrically shaping QAM modulation
AssigneeAcacia Communications, Inc.
InventorsMehmet Aydinlik, Timo Pfau, Christian Rasmussen
Life of this patent
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Abstract
A method, system, and apparatus for encoding a data for transmission across a communication link, the comprising encoding the data into a constellation; wherein the constellation is of a power 2n; wherein n is an odd number; wherein encoding the constellation creates outer constellation points forming a square at an edge of the constellation.
Claims20
A method for encoding a data for transmission across a communication link, the method comprising:
- encoding the data into a constellation;
- wherein the constellation is of a power 2n;
- wherein n is an odd number;
- wherein encoding the constellation creates outer constellation points forming a square at an edge of the constellation;
- wherein a beta of the constellation is optimized to increase distance between at least some of the constellation points.
A digital signal processor including logic for encoding a data for transmission across a communication link, the logic enabling:
- encoding the data into a constellation;
- wherein the constellation is of a power 2n;
- wherein n is an odd number;
- wherein encoding the constellation creates outer constellation points forming a square at an edge of the constellation;
- wherein a beta of the constellation is optimized to increase distance between at least some of the constellation points.
A system for encoding a data for transmission across a communication link, the system comprising:
- a processor;
- and
- logic configured to be run on the processor;
- the logic enabling:
- encoding the data into a constellation;
- wherein the constellation is of a power 2n;
- wherein n is an odd number;
- wherein encoding the constellation creates outer constellation points forming a square at an edge of the constellation;
- wherein a beta of the constellation is optimized to increase distance between at least some of the constellation points.
Dependencies are inferred from the claim text.