Simultaneous analog and digital communication using partitioning

Details Simultaneous analog and digital communication using partitioning Simultaneous analog and digital communication using partitioning

1997-05-20

1998-12-01

Chin, Wellington

Pulse or digital communications

Transmitters

Quadrature amplitude modulation

375261, H04L 2704

Patent

active

058449442

ABSTRACT:
Digital data is encoded by partitioning a predetermined number of bits into two separate words. The first word is mapped into a first symbol constellation to produce a first data signal. The second word is mapped into a second symbol constellation that has a different number of symbols than the first symbol constellation to produce a second data signal. An additional signal is added to the first data signal to form a first combined signal. Another additional signal is added to the second data signal to form a second combined signal. The first and second combined signals are transmitted over a communication channel.

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