Apparatus and method for transmitting and receiving signal of OFDM system
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United States of America Patent
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Mar 17, 2015
Grant Date -
Jun 5, 2014
app pub date -
Apr 19, 2013
filing date -
Dec 5, 2012
priority date (Note) -
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Abstract
A method and apparatus for transmitting an orthogonal frequency division multiplexing (OFDM) signal including converting a distribution of a signal in which inverse Fourier transform is performed in an OFDM system and a method of receiving an OFDM signal including expanding a received signal are provided, and by changing a magnitude distribution of a signal that is output from an OFDM modulator to a bimodal Gaussian distribution, an influence of noise in a receiving terminal can be reduced, and by limiting a signal that is output from an OFDM modulator to an appropriate magnitude, a phase in the receiving terminal can be prevented being wrongly demodulated.
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