Method for correlative encoding and decoding
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United States of America Patent
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Issued Date -
Jun 14, 2007
app pub date -
Oct 11, 2006
filing date -
Dec 14, 2005
priority date (Note) -
Abandoned
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Abstract
A method for correlatively encoding is used to improve spectrum performance, particularly for rectangular-pulse-shaped OFDM (Orthogonal Frequency-Division Multiplexing) signals no matter whether cyclic prefix or zero padding is added to the OFDM signals or not. In accordance with the method for correlatively encoding according to the present invention, OFDM signals can achieve high spectrum efficiency. In addition, the attenuation rate of signal sidelobes in spectrum gets faster, which prevents signal power from leaking out of the bandwidth, and thereby avoids interfering with signals of adjacent channels.
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