IEEE Photonics Technology Letters · 2008 · 126 citations · 5 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationInformation TheoryWireless CommunicationsDigital Signal ProcessingModulationOptical Communication SystemsOptical ModulationOptical Signal ProcessingSignal Detection TheoryChromatic DispersionChromatic Dispersion CompensationDirect DetectionModulation FormatsModulation TechniquesOrthogonal Frequency-division MultiplexingSignal ModulationSingle-sideband Modulation
A combination of orthogonal frequency-division multiplexing (OFDM) and compatible single-sideband modulation (CompSSB) using a standard direct-detection scheme is suggested to overcome chromatic dispersion without explicit compensation. Since the proposed type of SSB modulation does not require a spectral gap between optical carrier and subcarriers, it is highly spectrally efficient and the complexity in the analogue part is reduced compared to known direct-detection schemes for OFDM.
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