Method and circuit for controlling the peak power of a...

Details Method and circuit for controlling the peak power of a... Method and circuit for controlling the peak power of a...

2007-09-18

2007-09-18

Phu, Phuong (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S229000, C375S265000, C714S752000, C714S782000

Reexamination Certificate

active

10695768

ABSTRACT:
Disclosed is a method for controlling the peak power of a filtered signal in a single carrier data transmission system. The method comprises the steps of receiving a digital sequence (13) from a data source; generating a new digital sequence (a(k)); shaping filtering (34) the new digital sequence (a(k)) and producing a filtered digital sequence (y(k)) Characterized in that the step of generating a new digital sequence (a(k)) comprises the steps of: encoding data by an algebraic error correcting code (28); and performing a bit modification (30) by deliberately adding errors in such a way that the peak power of the filter signal affected by the deliberately introduced errors is lower than the peak power of the signal unaffected by errors. Disclosed is also a circuit for performing the method.

REFERENCES:
patent: 6201836 (2001-03-01), Kim
patent: 2263849 (1993-08-01), None
Spalvieri et al, “Codes for the peak power constrained channel” IEEE Global Telecommunications Conference, Nov. 14-16, 1995, pp. 639-643 XP000621561.
Luise De Gaudenzi, “Trellis-coded 16-QAM transmission over a nonlinear satellite channel”, International Conference on Communications, May 23-26, 1993, pp. 1723-1727, XP000448420.

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