大动态、可重构、分布式的智能光载无线(I-ROF)系统

Large dynamic,reconfigurable,distributed intelligent radio-over-fiber(I-ROF) system

在高清视频、数字医疗、物联网以及虚拟现实等需求的强劲推动下,宽带化、泛在化、融合化的信息接入已成为信息社会的重要支柱和发展引擎,新一代智能光载无线(I-RoF)系统,可以充分发挥无线灵活接入和光纤宽带传输的各自优势,利用微波光子手段,实现多频段、多制式微波信号在光域的产生、宽带处理、大动态传输、获取与可重构组网等功能,应用前景广阔.本文围绕新一代I-RoF系统,重点从单元技术、系统技术和组网应用3个方面,分别研究了I-ROF的体系结构、核心机理与关键技术,在单元技术方面,主要研究了宽带多制式光载无线信号的产生、光载宽带无线信号的频谱感知、宽带可调谐光子晶体微波光子滤波以及宽带高效的电磁带隙结构天线构;在系统技术方面,主要研究了大动态范围的光载无线系统、认知协同与低能耗的智能光载无线系统以及有线无线资源联合调度的智能光载无线系统;在组网应用方面,主要研究了智能光载无线网络的体系结构、基于分布式光载无线接入网络的MAC层协议设计以及系统应用.构建了面向宽带接入与泛在感知应用的大动态、可重构、分布式的智能光载无线系统,实现了宽带无线多业务接入.

Strongly driven by the demand of high-definition video, digital health, Internet of Things, and virtual reality, broadband, ubiquitous and convergent access of information has become the most important engine to push forward the development of the modern information society. Intelligent Radio-over-Fiber （I-ROF） system, which combines the advantages of wireless flexible access and fiber-optic broadband transmission, has promising applica- tion prospects with the multi-band, multi-standard microwave signal generation in the optical domain, broadband processing, large dynamic transmission, access and reconfigurable networking. We study the fundamental princi- ples, network architecture and enabling technologies of I-ROF systems in the views of modules, system applications and networking. In the aspect of modules, broadband and multi-standard microwave/millimeter-wave band vector signal generation, instantaneous photonic microwave frequency measurement, broadband and tunable microwave photonic filter based on photonic crystal and broadband and high efficient electromagnetic band gap structure antenna are investigated. For system applications, large dynamic ROF system, cognitive collaborative and power conservation ROF system, and optical and wireless resources joint management I-ROF system are covered. As for networking, network architecture of I-ROF, MAC protocol of the distributed ROF network are studied. The broadband access and ubiquitous sensing oriented, large dynamic, reconfigurable, distributed I-ROF system has been built to realize the broadband wireless access applications.