Capacity and Flexibility Improvement of Traffic Aggregation for Fixed 5G:Key Enabling Technologies,Challenges and Trends

作     者：Jing Zhang Tianhai Chang Zhuqiang Zhong Xianqing Jin Shaohua Hu Taowei Jin Jiahao Zhou Mingyue Zhu Yi Yu Jianming Tang Liangchuan Li Kun Qiu Jing Zhang;Tianhai Chang;Zhuqiang Zhong;Xianqing Jin;Shaohua Hu;Taowei Jin;Jiahao Zhou;Mingyue Zhu;Yi Yu;Jianming Tang;Liangchuan Li;Kun Qiu

作者机构：School of Communication and Information EngineeringUniversity of Electronic Science and Technology of ChinaChengduSichuan 611731China Optical Research DeptHuawei Technologies518129ShenzhenChina School of Electronic EngineeringBangor UniversityBangorLL571UTUK 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2022年第19卷第12期

页      面：1-13页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0803[工学-光学工程] 

基　　金：National Science Foundation of China(NSFC)(61871082 and 62111530150) Fundamental Research Funds for the Central Universities(ZYGX2020ZB043 and ZYGX2019J008) 

主　　题：optical fiber communication flexible access network optical field recovery inter-ONU communication 

摘      要：As the emergence of various highbandwidth services and the requirements to support 5G/Wi-Fi 6 wireless networks,the next generation fixed networks,i.e.F5G,are expected to be realized in the 5G era.F5G is endowed with new characteristics,including ultra-high bandwidth,all-optical connections and optimal service *** the prospect of optical-to-everywhere,optical technologies are used for mobile front-haul,mid-haul,and *** access networks would play an important role in F5G to support radio access network and fixed access ***-latency PON is a key for cost effective-haul traffic *** terms of signal transmission,intensity modulation directdetection(IM-DD)is a promising scheme due to its simple *** fundamental challenge associated with direct-detection is the disappearance of the transmitted signal’s *** access network,the flexibility and low latency are the two key factors affecting service *** this article,we review the evolution of PONs and the challenges of current PONs in *** analyze key enabling digital signal processing(DSP)techniques,including detection linearization for direct-detection and simplified coherent detection,adaptive equalizers,digital filer enabled flexible access network and low-latency inter-ONU ***,we discuss the developing trends of future optical access networks.