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Showing 1 to 2 of 2 for “"Nyquist-wdm"”.
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Multilevel Nyquist-WDM Ultra-Long-Haul Coherent Optical Transmission Systems
… in ultra-long-haul links. More in details, Nyquist filtered multilevel optical modulation formats (QPSK, 8QAM and 16QAM) have been investigated as candidates for the efficient transmission of information (toward the Shannon limit). Wavelength division multiplexed (WDM) systems assembled with …
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SPECTRALLY EFFICIENT MULTICARRIER SYSTEMS FOR FIBER-OPTIC TRANSMISSION
… frequency-division multiplexing (OFDM) and Nyquist wavelength-division multiplexing (Nyquist-WDM) are the two basic approaches to achieve the 1 Baud/s/Hz spectral efficiency. OFDM allows spectral overlap of adjacent subcarriers and crosstalk elimination by integration at the receiver; …