Constellation selection in a communication system

Details Constellation selection in a communication system Constellation selection in a communication system

2007-09-25

2007-09-25

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Testing

Signal noise

C455S296000, C381S094100

Reexamination Certificate

active

10273558

ABSTRACT:
A method is provided to provide data to automatically estimate channel performance in a communication system if a different order constellation is used comprising the steps of: receiving an input signal from the channel; passing the input signal to a slicer having an output signal; determining signal noise by taking the difference between the input signal and output signal; identifying a beginning of a noise event when the signal noise is greater than a predefined first threshold; identifying an end of a noise event when the signal noise is less than a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.

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