基于副载波复用的LDPC编码调制技术

Technology of LDPC Coded Modulation Based on Sub-Carrier Multiplexed

为满足在光学通道上达到400 Gbit/s的单频道传输速率的需求,提出了一种副载波复用的4维(four dimensional,4D)LDPC编码调制方案。通过仿真结果可以发现,该方案与相应的偏振复用方法相比,在误码率为10-6的情况下,可以额外提供4.2 dB的光信噪声比。

In order to meet the need of 400 Gbit/s single-channel transmission rate over optical fiber communication, a sub-carrier multiplexed LDPC coded modulation scheme is proposed. From the simulation results, the OSNR is given at the bit error rate （BER） of 10 ^-6 as 4. 2 dB compared to the corresponding polarization multiplexing schemes.