Simple Analog OFDM system Implementation Each subcarrier transmits one bit of information (N bits total) as indicated by its presence or absence in the output spectrum . The frequency of each subcarrier is selected to form an orthogonal signal set. These frequencies are also known at the receiver for signal recovery.
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OFDM: Orthogonal Frequency Division Multiplexing, is a form of signal modulation that divides a high data rate modulating stream placing them onto many slowly modulated narrowband close-spaced subcarriers , and in this way is less sensitive to frequency selective fading.
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