摘要
基于微波光子技术的超宽带光载无线(RoF)系统是未来低成本、高性能超宽带无线接入网络的重要解决方案,前人已有许多研究成果。基于已有研究成果,文章设计了基于全光矢量调制技术的光载无线(RoF)系统,使信号的频谱效率进一步提高;基于毫米波相移键控调制的全双工光载无线系统,可以大大简化基站的结构和光纤的铺设;多业务混合传送的光载无线系统,可以同时承载有线和多个无线信号的业务。文章还展示了一种基于RoF的高清视频传输平台。
Super wideband Radio over Fiber (RoF) system is an important solution for the future low-cost and high-quality super broadband wireless access network. Taking into consideration many research results, the RoF system based on optical vector modulation is designed, which can increase the frequency efficiency of signals. Full-duplex RoF system based on millimeter wave phase shift keying modulation is able to simplify the structure of the base-stations and the installment of optical fiber. The multi-services hybrid optical-wireless RoF system has the capability of carrying wired and several wireless signals. The RoF-based High Definition Television (HDTV) transmission test bed is also introduced.
出处
《中兴通讯技术》
2009年第3期21-24,共4页
ZTE Technology Journal
基金
国家高技术研究发展计划("863"计划)资助项目(2007AA01Z264
2006AA01Z256)
国家自然科学基金资助项目(60736002
60702006)
关键词
光载无线系统
超宽带无线通信
光纤通信
微波光子
光无线覆盖
RoF system
super broadband wireless communication
optical fiber communication
microwave photonics
optical wireless convergence