摘要
研究了低密度奇偶校验(LDPC)编码和正交频分复用(OFDM)调制技术在波分复用无源光网络(WDM-PON)中的应用,提出了基于LDPC-OFDM编码调制的无源接入网系统。实验结果表明,该系统可以在20km单模光纤上实现8路10Gb/s LDPC-OFDM编码调制信号的下行传输,较未采用编码调制技术的WDM-PON性能提升了3.2dB。
Low-density Parity-check (LDPC) code and orthogonal frequency-division-multiplexing (OFDM) modulation are studied in a wavelength division multiplexing passive optical network (WDM-PON), and the passive access network based on LDPC-OFDM coded modulation is constructed. The simulation results show that the eight wavelengths transmission with 10Gb/s per downlink can be achieved in single mode fiber of 20km, 3.2dB gain is obtained over the uncoded case.
出处
《光通信技术》
CSCD
北大核心
2014年第3期9-11,共3页
Optical Communication Technology
基金
山东省自然科学基金(ZR2010FM043)资助