High speed data transmission using expanded bit durations in mul

Details High speed data transmission using expanded bit durations in mul High speed data transmission using expanded bit durations in mul

1995-09-20

1999-09-28

Vo, Don N.

Pulse or digital communications

Repeaters

Testing

H04B 1707

Patent

active

059600322

ABSTRACT:
High-rate bit transmitted data is serial to parallel converted into low-rate bit streams in a similar fashion to multicarrier or multitone modulation. However, in contrast to the multicarrier method, each low-rate bit stream is modulated using direct-sequence spread-spectrum. By selecting the processing gain properly the total required bandwidth will be of the same order as the original high-rate data stream, thereby gaining the inherent benefit of multipath rejection without expanding the bandwidth of the original high-rate stream.

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