2011 · 25 citations · 5 references
EngineeringElectrical EngineeringDigital CommunicationOptoelectronicsPhotonicsCoding TheoryError Control CodingError-correcting CodesModulationOptical Communication SystemsOptical ModulationCoherent Optical CommunicationDemodulationIntensity ModulationIterative DecodingLdpc CodesOptical ReceiversOptical Transmission SystemsSoft-decision Decoding
We investigate DQPSK modulation combined with QC-LDPC coding. By applying iterative demodulation and soft-decision decoding, the differential decoding penalty is reduced by 2.05dB offering an attractive solution for coherent optical systems with soft-decision FEC.
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