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

被引：17

作者：

Arabaci, Murat ^{[1
]}

Djordjevic, Ivan B. ^{[1
]}

Xu, Lei ^{[2
]}

Wang, Ting ^{[2
]}

机构：

[1] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA

[2] NEC Labs Amer Inc, Princeton, NJ 08540 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2011年 / 23卷 / 18期

基金：

美国国家科学基金会;

关键词：

Coded modulation; forward error correction (FEC); low-density parity-check (LDPC) codes; optical fiber communication; COHERENT DETECTION;

D O I：

10.1109/LPT.2011.2159968

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：1280 / 1282

页数：3

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