On Application of LDPC Coded Modulation in Optical Fiber Communication
Zhong Xun Wang, Peng Xiang Wang · Advanced materials research · 2012
In order to meet the demand for higher capacity transmission over optical fiber communication, we propose a new LDPC coded modulation scheme. Using spectrally-efficient modulation format and LDPC codes, the proposed scheme offers an advanced forward error correction (FEC) solution. From the simulation results, we can get the SNR at the bit error rate (BER) of 10-7 as 3.8dB, 5.5dB, and6.9dB when 16-, 32-, and 64-points constellations are used, respectively.