Signal structure for data communication

Details Signal structure for data communication Signal structure for data communication

1983-11-22

1987-04-21

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

329104, 332 9R, 375 42, 375 58, H04L 2702, H04L 2718

Patent

active

046602135

ABSTRACT:
A signal structure for high speed data communication selects each signal point in the structure to attain a low probability of error in the presence of both additive noise and multiplicative noise. Transmission apparatus for practice of the invention employs an encoder which responds to digital data to produce a QAM signal having parameters selected according to the new signal structure, and receiving apparatus employs a decoder which converts a received QAM signal to digital values according to the same structure.

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