Doubly orthogonal code and frequency division multiple access co

Details Doubly orthogonal code and frequency division multiple access co Doubly orthogonal code and frequency division multiple access co

1995-05-19

1997-04-22

Marcelo, Melvin

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

375200, H04J 1100, H04J 1300

Patent

active

056234872

ABSTRACT:
In an orthogonal code division multiple access (OCDMA) radio communication system having at least one base station and a plurality of remote subscriber terminals, the improvement comprising the method of reducing the sensitivity of OCDMA to access noise due to time base error and multipath delay spread comprising (1) reducing the size of the orthogonal signal set on a single carrier, and (2) providing additional carriers with orthogonal frequency spacing for additional subscriber capacity.

REFERENCES:
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5375140 (1994-12-01), Bustamante et al.

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