Differential transmitter diversity technique for wireless...

Details Differential transmitter diversity technique for wireless... Differential transmitter diversity technique for wireless...

2006-12-26

2006-12-26

Phu, Phuong (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S267000, C375S299000, C455S101000, C455S103000, C455S133000, C455S137000

Reexamination Certificate

active

07154970

ABSTRACT:
Input signals of each frame are encoded by mapping the signals onto a coordinate system dictated by the symbols of the previous frame, and symbols from a constellation are selected based on the results of such mapping. Received signals are detected by preprocessing the signals detected at each antenna with signals detected by the antenna at the immediately previous frame, and then applied to a maximum likelihood detector circuit, followed by an inverse mapping circuit.

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patent: 6115427 (2000-09-01), Calderbank et al.
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patent: 6327310 (2001-12-01), Hochwald et al.
patent: 6351499 (2002-02-01), Paulraj et al.
patent: 6430231 (2002-08-01), Calderbank et al.

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