Four-Dimensional Nonbinary LDPC-Coded Modulation Schemes for Ultra-High-Speed Optical Fiber Communication

Four-Dimensional Nonbinary LDPC-Coded Modulation Schemes for Ultra-High-Speed Optical Fiber Communication
复制标题

用于超高速光纤通信的四维非二进制 LDPC 编码调制方案

DOI:
--
复制
发表时间:
2011
影响因子:
2.6
通讯作者:
Ting Wang
Ting Wang
中科院分区:
工程技术3区
文献类型:
--
作者:
M. Arabaci;I. Djordjevic;Lei Xu;Ting Wang

文献摘要

被引文献

相似文献

在这封信中,我们提出了一个四维(4-D)的非二进制低密度奇偶校验编码调制(NB-LDPC-CM)方案,适用于超过100 Gb/s的光纤通信。通过对频谱有效的调制格式进行扩展以实现高聚合比特率和用于前向纠错(FEC)的非二进制LDPC码,所提出的方案为光纤通信系统提供了比现有技术的比特交织LDPC编码调制(BI-LDPC-CM)方案更优越的上级FEC解决方案。与先前报道的BI-LDPC-CM的误比特率(BER)性能结果相比,当使用16点、32点和64点的4-D星座时,所提出的方案分别在BER为10-7时提供0.29 dB、1.17 dB和2.17 dB的额外的净编码增益(NCG)。
In this letter, we propose a four-dimensional (4-D) nonbinary low-density parity-check-coded modulation (NB-LDPC-CM) scheme suitable for beyond 100-Gb/s optical fiber communication. Incorporating spectrally efficient modulation formats to achieve high aggregate bit rates and nonbinary LDPC codes for forward error correction (FEC), the proposed scheme offers a superior advanced FEC solution for optical fiber communication systems than the prior-art bit-interleaved LDPC-coded modulation (BI-LDPC-CM) scheme. Compared to the previously reported bit error rate (BER) performance results of BI-LDPC-CM, the proposed scheme offers additional net coding gains (NCGs) of 0.29 dB, 1.17 dB, and 2.17 dB at the BER of 10-7 when 16-, 32-, and 64-point 4-D constellations are used, respectively.