Multistage linear receiver for DS-CDMA systems

Details Multistage linear receiver for DS-CDMA systems Multistage linear receiver for DS-CDMA systems

1996-04-18

1998-05-26

Ton, Dang

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

375206, H04J 1302

Patent

active

057577919

ABSTRACT:
A multistage linear receiver for extracting data embedded in a received spread-spectrum signal having a plurality of channels using a direct sequence code division multiple access system. The multistage receiver comprises an initial plurality of spread-spectrum detectors, a plurality of detector weighting devices, a first plurality of product devices, a first combiner, a first plurality of spread-spectrum detectors, a first plurality of weight-product devices and an output combiner. The initial plurality of spread-spectrum detectors despreads and delays the plurality of channels to generate a plurality of detector-output signals. The detector weighting devices weight the plurality of detector-output signals with a plurality of detector weights as a plurality of weighted-detector signals. The plurality of detector-output signals are spread-spectrum processed by the first plurality of product devices to generate a first plurality of spread-spectrum signals which are combined by the first combiner as a first combined signal. The first plurality of spread-spectrum detectors despreads and delays the first combined signal as a first plurality of despread-combined signals which are weighted by the first plurality of weight-product devices to generate a first plurality of weighted signals. The output combiner combines the first plurality of weighted signals and the plurality of weighted-detector signals to extract the data. Additional stages comprising product devices, combiners and weight-product devices may be added as necessary or desired.

REFERENCES:
patent: 4653069 (1987-03-01), Roeder
patent: 4672629 (1987-06-01), Beier
patent: 4675839 (1987-06-01), Kerr
patent: 4894842 (1990-01-01), Broekhoven et al.
patent: 5081643 (1992-01-01), Schilling
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5297162 (1994-03-01), Lee et al.
Masahavi, Shimon, Kanterakis, Emmanuel G., and Schilling, Donable, "Multistage Linear Receivers fo DS-CDMA Systems", International Journal of Wireless Information Networks, vol. 3, No. 1, 1996, pp. 1-17.

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