2017 · 50 citations · 6 references
EngineeringComputer EngineeringElectrical EngineeringDigital CommunicationInformation TheoryWireless CommunicationsChannel CapacityChannel CodingCommunication NetworksDigital Signal ProcessingError Control CodingModulationAmplitude ModulationBit-error Rate AnalysisCoding SchemesModulation FormatsPulse ModulationShaping
We apply probabilistic shaping in direct detection pulse amplitude modulation (PAM) systems. We show that the achievable information rate can be increased by up to 0.19 bit/symbol over conventional PAM4 solutions. In transmission experiments we demonstrate 8.96 Gbit/s higher net bitrate.
6