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Concatenated QC-LDPC and SPC Codes for 100 Gbps Ultra Long-Haul Optical Transmission Systems
Fiber optics communications Optical communications
2015/6/8
We propose and investigate a novel FEC coding scheme based on a concatenation of QC-LDPC with single-parity-check codes. High performance of a Q-limit of 5.8 dB with 20.5% overhead has been achieved w...
Modulation Formats for Ultra Long-Haul Undersea Transmission
Modulation Formats Ultra Long-Haul Undersea Transmission
2015/7/16
This paper reviews recent technology advances in modulation formats including RZ-DQPSK, PDM RZ-DPSK, and offset PDM RZ-DPSK for 40G undersea transmission. Research activities on 100G long-haul transmi...
Volterra Nonlinear Compensation of 112 Gb/s Ultra-long-haul Coherent Optical OFDM based on Frequency-Shaped Decision Feedback
Volterra Nonlinear Compensation Ultra-long-haul Coherent Optical OFDM Frequency-Shaped Decision Feedback
2015/7/14
A novel DSP-based FWM compensation scheme for 112Gb/s CO-OFDM based on decision-feedback-aided frequency-shaped Volterra nonlinear filtering, with low O(MlogM) realization complexity, improves the wor...
10,000 km 21.4Gb/s WDM APS-DPSK With High Spectral Efficiency for Ultra-Long-Haul Submarine Upgrades
WDM APS-DPSK High Spectral Efficiency Ultra-Long-Haul Submarine Upgrades
2015/7/30
21.4Gb/s APS-DPSK transmission over 10,000km has been achieved over legacy submarine fibre demonstrating that upgrades to transpacific links are possible at double the spectral efficiency of previous ...