Spread-time code division multiple access technique with arbitra

Details Spread-time code division multiple access technique with arbitra Spread-time code division multiple access technique with arbitra

1992-06-22

1992-12-29

Barron, Jr., Gilberto

Pulse or digital communications

Repeaters

Testing

375 96, 370 19, H04B 1402, H04B 1500

Patent

active

051757443

ABSTRACT:
A spread-time code division multiple access (ST-CDMA) technique is disclosed for bandlimited access to a channel. With ST-CDMA, pseudo-random (PN) sequences are assigned to each transmitter in the multi-transmitter system, and the Fourier transform of the transmitter pulse for a given transmitter is determined by modulating the phase of the desired transmitter spectrum by the PN Sequence assigned to the transmitter. The data symbols produced by the transmitter are conveyed by delayed versions of the transmitter pulse. The transmitted data for a particular transmitter is recovered at a receiver synchronized to the transmitter by sampling the output of a filter matched to the corresponding transmitter pulse.

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