高线宽容忍度的高谱效SSB-PAM-DD方案

卢东旭; 周娴; 刘飞; 霍佳皓; 苑金辉; 隆克平

doi:10.11959/j.issn.1000-436x.2022100

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高线宽容忍度的高谱效SSB-PAM-DD方案

学术论文 | 更新时间：2024-06-05

- 高线宽容忍度的高谱效SSB-PAM-DD方案
- High spectral efficiency SSB-PAM-DD scheme with high linewidth tolerance
- 通信学报 2022年43卷第5期页码：36-44
- 作者机构：
  
  1. 北京科技大学计算机与通信工程学院，北京 100083
  2. 北京科技大学顺德研究生院，广东佛山 528300
- 作者简介：
  
  [ "卢东旭（1991- ），男，山东泰安人，北京科技大学博士生，主要研究方向为短距光传输系统和数字信号处理" ]
  [ "周娴（1982- ），女，重庆人，博士，北京科技大学教授，主要研究方向为高速光传输理论与技术、分布式光纤传感技术、数字信号处理算法" ]
  [ "刘飞（1990- ），男，安徽池州人，博士，北京科技大学讲师，主要研究方向为相位解调技术、噪声分析方法和光纤传感技术" ]
  [ "霍佳皓（1989- ），男，河北邢台人，博士，北京科技大学讲师，主要研究方向为短距光传输系统和数字信号处理" ]
  [ "苑金辉（1981- ），男，河北廊坊人，博士，北京科技大学教授，主要研究方向为光纤与波导非线性及应用、新型光电子器件" ]
  [ "隆克平（1968- ），男，四川巴中人，博士，北京科技大学教授，主要研究方向为光互联网络及交换技术、新一代网络理论与技术、无线移动通信、网络新业务与安全" ]
- 基金信息：
  
  国家重点研发计划基金资助项目(2019YFB1803905);国家自然科学基金资助项目(61871030);国家自然科学基金资助项目(62171022);广东基础与应用基础研究基金资助项目(2021B1515120057);北京市自然科学基金资助项目(4222009);北京科技大学顺德研究生院科技创新基金资助项目(BK19AF005)
- DOI：10.11959/j.issn.1000-436x.2022100
  中图分类号： TN913
- 网络出版日期：2022-05，
  
  纸质出版日期：2022-05-25
- 稿件说明：
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卢东旭, 周娴, 刘飞, 等. 高线宽容忍度的高谱效SSB-PAM-DD方案[J]. 通信学报, 2022,43(5):36-44.

Dongxu LU, Xian ZHOU, Fei LIU, et al. High spectral efficiency SSB-PAM-DD scheme with high linewidth tolerance[J]. Journal on communications, 2022, 43(5): 36-44.
卢东旭, 周娴, 刘飞, 等. 高线宽容忍度的高谱效SSB-PAM-DD方案[J]. 通信学报, 2022,43(5):36-44. DOI： 10.11959/j.issn.1000-436x.2022100.

Dongxu LU, Xian ZHOU, Fei LIU, et al. High spectral efficiency SSB-PAM-DD scheme with high linewidth tolerance[J]. Journal on communications, 2022, 43(5): 36-44. DOI： 10.11959/j.issn.1000-436x.2022100.

摘要

针对低成本下的高色散（CD）稳健性单边带（SSB）直接检测（DD），对3种单边带脉冲幅度调制方案进行了分析，其中在发射端加入下变频的方案可获得最大频谱利用率，但恶化了系统对激光器线宽的容忍度。鉴于此，根据单边带脉冲幅度调制信号的特性，提出了一种包含相位损伤免疫均衡算法和改进盲相位补偿算法的数字信号处理方案。仿真结果表明，针对112 Gbit/s的单边带脉冲幅度直接检测，无论是背靠背还是传纤80 km场景，在同一误码率阈值下改进方案可容忍线宽为1 MHz，而原始方案仅为100 kHz，实现了高谱效、高线宽容忍度的低成本单边带脉冲幅度调制信号传输。

Abstract

For low-cost and high chromatic dispersion (CD) robustness single sideband (SSB) with direct detection (DD)

three schemes of SSB with pulse amplitude modulation (PAM) were investigated.Among that

the highest spectral efficiency was achieved by the scheme of adding the frequency down-conversion at the transmitter.However

that scheme reduces the tolerance for laser linewidth.Hence

based on the character of the SSB-PAM signal

a DSP scheme was proposed

including a modified equalization algorithm with phase distortion immunity and blind phase search algorithm.The simulation results show that the modified scheme can tolerate 1 MHz linewidth for 112 Gbit/s SSB-PAM-DD

while the original scheme for SSB-PAM was only 100 kHz at the same bit error rate (BER) threshold.Therefore

the proposed scheme can achieve a high frequency efficiency

high linewidth tolerance

and low-cost SSB-PAM signaling transmission.

关键词

Keywords

references

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