NON-ORTHOGONAL SUBCARRIER MAPPING METHOD AND SYSTEM
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United States of America Patent
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Issued Date -
Jul 23, 2009
app pub date -
Aug 4, 2008
filing date -
Jan 23, 2008
priority date (Note) -
Abandoned
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Abstract
A method and system of accommodating multiple users through non-orthogonal subcarrier mapping of a single carrier frequency division multiple access system in which input data to a transmitter is modulated via an N-point discrete Fourier transform (N-point DFT), non-orthogonal subcarrier mapping, M-point inverse discrete Fourier transform (M-point IDFT), and cyclic prefix (CP) insertion; the modulated data is transmitted to and received by a receiver; and the received data is demodulated for cyclic prefix (CP) removal, M-point discrete Fourier transform (M-point DFT), subcarrier demapping and equalization, and N-point inverse discrete Fourier transform (N-point IDFT).
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