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

5G移动接入网是通信、大数据、物联网和人工智能（AI）的初始网络，随着5G移动接入网的发展，5G+/6G被提出用于增强5G的功能，即5G+/6G是一个低延迟、高速连接世界上任何东西的全球网络。为了实现5G+/6G网络，使用光纤将集中式基带单元（BBU）与众多远程无线电头（RRH）连接起来的前传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，无法直接使用。未来的前传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年的探索计划是对上述战略和全球愿景的回应，旨在探索和创造5G+/6G无线的未来光子学定义无线电。申请人及其课题组将开展基础性和创新性研究，结合相关器件和电路，实现高性价比的5G+/6G前传传输技术，这将是5G+/6G接入网的关键技术。这项为期5年的发现计划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。具体而言，本研究涉及以下概念、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；(2)新的高性价比前传传输技术。在(1)中，包括相干光频梳发生器使用的InP量子点激光建模，以及相干光频梳发生器使用的光子无线收发器设计。在(2)中，将研究具有成本效益的Tb/s前传技术，如光纤无线电、线性化和空分复用等。******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。这个为期5年的探索计划将维持加拿大信息通信技术的领导地位，并促进加拿大的经济和人类生活。

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.