Integrated Fiber-Wireless Transmission Technologies for 5G+/6G

随着5G移动接入网络的发展，5G移动接入网络是通信、大数据、物联网和人工智能(AI)的初始网络，5G+/6G正在被提出以增强5G的功能，即5G+/6G是以低延迟和高速连接世界上任何东西的全球网络。为了实现5G+/6G网络，利用光纤连接集中基带单元(BBU)和多个远程射频头(RRH)的前端通信系统是接入网的关键挑战部分，因为目前的数字光纤通信系统具有高复杂性和高功耗，不能直接使用。未来的前端通信系统必须具有结构简单、低复杂度、低功耗、低时延、支持TB/S传输等特点。这项为期5年的探索计划是为了响应上述战略和全球愿景，为5G+/6G无线探索和创造未来的光子学定义的无线电。申请人和他的研究小组准备进行基础和创新研究，以实现具有成本效益的5G+/6G前端传输技术和相关设备和电路，这将是5G+/6G接入网络的关键技术。本次为期5年的Discovery的主要研究目标是提出、研究和探索用于5G+/6G无线接入的高度原创技术。具体地说，这项研究涉及以下概念、建模、设计和演示：(1)5G+/6G光子和毫米波/太赫兹集成电路/收发器的使能技术；以及(2)新的具有成本效益的前端传输技术。在(1)中，包括用于相干光频梳产生器的InP量子点激光器建模，以及使用相干光频梳产生器的光子-无线收发信机的设计。在(2)中，将研究高性价比的TB/S前端传输技术，如光纤无线电、线性化、空分复用等。从长远来看，光子学定义的无线电将导致许多颠覆性的ICT技术。这项为期5年的探索计划将保持加拿大信息和通信技术的领先地位，促进加拿大经济和人类生活。

With the development of 5G mobile access networks, which is an initial network for communications, big data, internet of things and artificial intelligence (AI), 5G+/6G is being proposed for enhancing the functionalities of 5G, i.e. 5G+/6G is a global network for connecting anything in the world with low latency and high speed. To realize 5G+/6G networks, fronthaul communication systems, which are used to connect centralized baseband units (BBU) with numerous remote radio heads (RRH) using optical fiber, are the key challenging part of access networks because the current digital optical fiber communication systems, which have high complexity, and high power-consumption, cannot be straightforwardly used. The future fronthaul communication systems must have the features: simple structure, low complexity, low power consumption, low latency, and supporting Tb/s transmission. This 5-year Discovery program is responding to the above strategic and global vision to explore and create future photonics defined radio for 5G+/6G wireless. The applicant with his research group is poised to conduct fundamental and innovative researches to achieve cost-effective 5G+/6G fronthaul transmission technologies with related devices and circuits, which will be the key technologies of 5G+/6G access networks. The main research goal for this 5-year Discovery is to propose, study, and explore highly original technologies that are used for 5G+/6G wireless access. Specifically, this research is concerned with the following concepts, modeling, design and demonstrations: (1) Enabling technologies for 5G+/6G photonic and mm-wave/THz integrated circuits/transceivers; and (2) new cost-effective fronthaul transmission technologies. In (1), InP quantum dot laser modeling that is used for coherent optical frequency comb generators, and photonic-wireless transceiver design using coherent optical frequency comb generator are included. In (2), cost-effective Tb/s fronthaul transmission technologies, such as radio over fiber, linearization, and spatial division multiplexing etc. will be studied. In a long term, photonics defined radio will lead to many disruptive ICT technologies. This 5-year Discovery program will sustain Canadian ICT leadership and promote Canadian economy and human life.