基于带宽受限的100 GPON先进调制格式比较  

Comparisons of Advanced Modulation Formats for 100 GPON with Low-Bandwidth Optics

作　　者：周擎奕 张教 蔡沅成 朱敏 ZHOU Qingyi;ZHANG Jiao;CAI Yuancheng;ZHU Min(National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China;Purple Mountain Laboratories,Nanjing 211111,China)

机构地区：[1]东南大学移动通信国家重点实验室,江苏南京210096 [2]紫金山实验室,江苏南京211111

出　　处：《聊城大学学报（自然科学版）》2023年第3期1-8,15,共9页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学青年基金项目(62101126,62101121)资助。

摘　　要：随着云业务、视频业务和移动互联业务的快速发展,5G光接入网对于传输容量的需求日益迫切。接入网段日益增长的带宽需求不仅要求更高的传输速度,还需要保持较低的系统成本。但是成熟的商用低成本光电器件的带宽通常是有限的,当传输速率很高时,带宽明显小于信号的波特率。考虑到低成本光学器件的有限带宽,采用具有高频谱效率的先进调制格式,如PAM,CAP以及DMT是很有潜力的选择。主要针对光接入网器件带宽受限的问题,在带宽受限的100 G无源光网络中,仿真对比了三种先进调制格式的性能,分析了三种调制格式传输20 km SSMF后的接收灵敏度和功率预算,还讨论了他们的热噪声性能和抗色散性能。With rapid development of cloud services,video services,and mobile interconnection services,there occurs an urgent requirement of transmission capacity in 5G optical access network.The increasing bandwidth demand in access network segment requires not only higher transmission speed but also lower costs.However,the bandwidth of a mature commercial low-cost optoelectronic device is generally limited,and it is significantly smaller than the baud-rate of the signal at high data rate.Considering the limited bandwidth of low-cost optics,advanced modulation formats such as multi-level pulse amplitude modulation,carrier-less amplitude and phase modulation and discrete multi-tone modulation are the most potential choice.In this thesis,a comprehensive comparison of advanced modulation formats with high spectral efficiency is carried out in 100 G passive optical network based on bandwidth-limited optics at O-band.The receiver sensitivity and power budget of three formats are simulated after 20 km SSMF transmission.The performance of thermal noise and chromatic dispersion are discussed.

关 键 词：带宽受限 强度调制直接检测 脉冲幅度调制 无载波幅度相位调制 离散多音调制 

分 类 号：TN914[电子电信—通信与信息系统]