A New Multiplex Technique for Communication Systems

A new technique for multiplex communication is described, in which orthogonal pulse waveforms are transmitted as simultaneous subcarriers. Information signals are carried in the form of independent amplitude modulations of each subcarrier, and are extracted by means of waveform correlation. Known as...

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Bibliographic Details
Published in:IEEE transactions on power apparatus and systems 1966-10, Vol.PAS-85 (10), p.1054-1059
Main Author: Ballard, Arthur H.
Format: Article
Language:English
Subjects:
Amplitude modulation
Costs
Crosstalk
Filters
Frequency division multiplexing
Frequency modulation
Frequency shift keying
Multiplexing equipment
OFDM
Pulse width modulation
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Description
Summary:A new technique for multiplex communication is described, in which orthogonal pulse waveforms are transmitted as simultaneous subcarriers. Information signals are carried in the form of independent amplitude modulations of each subcarrier, and are extracted by means of waveform correlation. Known as ORTHOMUX (orthogonal multiplexing), the new technique offers the advantages of: 1) high spectrum efficiency, 2) maximum rejection of crosstalk and noise, 3) information response down to zero frequency, 4) mixed information rates, 5) simple, compact equipment, and 6) modular flexibility.
ISSN:0018-9510
DOI:10.1109/TPAS.1966.291606