摘要
在5G前传网络中,单纤双向是重要的特征之一,相比4G和光纤接入(FTTx)网络中的单纤双向,5G前传网络中的单纤双向更为复杂。文章分析了在5G前传网络中实现单纤双向的情况及实现单纤双向关键光器件的原理,并分析了单纤双向系统的串扰源问题。分析结果表明,基于单只密集波分复用(DWDM)器件的DWDM单纤双向方案比基于光环行形器的DWDM单纤双向方案更有优势。
In 5G forward network,single fiber bidirectional technology is one of the important characteristics.Compared with single-fiber bidirectional technology in 4G and Fiber To The X(FTTx)networks,single-fiber bidirectional technology in 5G forward network is more complex.In this paper,several schemes to realize single-fiber bidirectional transmission in 5G forward network are first introduced.Then the key optical devices to realize single-fiber bidirectional transmission and the crosstalk problem of single-fiber bidirectional system are analyzed.The comparison result shows that the single-fiber bidirectional scheme based on a single Dense Wavelength Division Multiplexing(DWDM)device has more advantages than the single-fiber bidirectional scheme based on an optical ring device.
作者
杨春
胡春琳
YANG Chun;HU Chun-lin(Quality Supervision&Inspection Centre of Optcial Communication Products,M.I.I.,WRI Testing Technologies Co.,Ltd.,Wuhan 430205,China)
出处
《光通信研究》
北大核心
2019年第6期27-34,共8页
Study on Optical Communications
关键词
前传网络
单纤双向
波分复用
波长规划
串扰
wireless forward network
single-fiber bidirectional
DWDM
wavelength planning
crosstalk
