移动通信2024，Vol.48Issue(12)：9-14,6.DOI:10.3969/j.issn.1006-1010.20241025-0001
基于ResBi-GRU的后均衡器在无缝光纤太赫兹集成通信系统中的应用
Application of Post-equalizer Based on ResBi-GRU in Seamless Fiber Terahertz Integrated Communication System
摘要
Abstract
Seamless fiber terahertz integrated communication has become a promising technology in the 6G field.Electronic terahertz communication systems have the advantages of high integration,miniaturization and potentially low cost,but their disadvantages are small bandwidth and high levels of harmonic interference.To this end,a bidirectional gated recurrent unit(ResBi-GRU)model based on residual learning is proposed as the post-equalizer of this communication system.This model can make use of the property of residual learning to learn the residual between input and output,and thus simplify the complexity of the model without causing performance loss.The experiments verify that in a seamless fiber-optic terahertz integrated communication system,the data transmission rate of discrete multi-tone modulation(DMT)signals through 5 km fiber and 1 m 209 GHz terahertz signal reaches 74.82 Gbps under 20%soft-decision forward error correction(SD-FEC)threshold(2.4×10-2).Compared with the method without residual learning,the transmission rate is increased by 80Mbps and the space complexity is reduced by 50%.关键词
后均衡/残差学习/无缝光纤/太赫兹/双向门控循环单元Key words
post-equalization/residual learning/seamless fiber/terahertz/bidirectional gated recurrent unit分类
电子信息工程引用本文复制引用
施剑阳,朱一鸣,张俊文,迟楠..基于ResBi-GRU的后均衡器在无缝光纤太赫兹集成通信系统中的应用[J].移动通信,2024,48(12):9-14,6.基金项目
国家重点研发计划项目(2022YFB2903600) （2022YFB2903600）
国家自然科学基金"高频谱效率光调制与光传输","高速水下无线光通信关键集成器件与智能系统研究","基于非线性智能均衡的高速MIMO可见光通信关键技术研究","面向下一代移动通信的关键太赫兹光电集成器件研究"(61925104,62031011,62201157,62235005) （61925104,62031011,62201157,62235005）
