Hybrid Digital-Analog Radio-over-Fiber (DA-RoF) Modulation and Demodulation Achieving a SNR Gain over Analog RoF of >10 dB at Halved Spectral Efficiency
Xiang Liu
Abstract
We propose and experimentally demonstrate a hybrid digital-analog radio-over-fiber technique based on cascaded digital PCS-121-QAM modulation and analog pulse code modulation for each radio waveform sample, achieving 12.8 dB SNR gain over A-RoF and 1.38% EVM.
Topics & Concepts
DemodulationRadio over fiberModulation (music)Analog transmissionQuadrature amplitude modulationElectronic engineeringWaveformPulse-amplitude modulationDigital radioRadio frequencyComputer scienceAnalog signalOptical fiberTelecommunicationsPulse (music)PhysicsDigital signal processingEngineeringBit error rateChannel (broadcasting)AcousticsDetectorRadarAdvanced Photonic Communication SystemsOptical Network TechnologiesPAPR reduction in OFDM