Orthogonal Frequency-Division Multiplexing is a multicarrier modulation technique that transmits data by dividing a high-rate bitstream into multiple lower-rate streams, which are then simultaneously transmitted over closely spaced, spectrally overlapping subcarriers that are orthogonal to one another, thereby maximizing spectral efficiency and mitigating inter-symbol interference in frequency-selective channels.
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Raed Mesleh, Harald Haas, Sinan Sinanović et al. · IEEE Transactions on Vehicular Technology · 2008 · 2.2K citations
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