Method and apparatus for efficient calculating distance metric

Details Method and apparatus for efficient calculating distance metric Method and apparatus for efficient calculating distance metric

2006-01-31

2006-01-31

Fan, Chieh M. (Department: 2638)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S262000, C375S341000, C714S794000

Reexamination Certificate

active

06993098

ABSTRACT:
A method and an apparatus for determining the log-likelihood ratio of a received signal. The log-likelihood ratio is determined by calculating distance between the received symbol and closest constellation point matching a bit and the distance between the received symbol and the closest constellation point not matching the bit.

REFERENCES:
patent: 6594318 (2003-07-01), Sindhushayana
patent: 6807238 (2004-10-01), Rhee et al.
patent: 2002/0067777 (2002-06-01), Jeong
patent: 2388756 (2003-11-01), None
patent: WO 0167617 (2001-09-01), None

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