面向2G/3G/4G/WLAN融合接入应用的光载无线分布式天线系统  

A Radio-Over-Fiber-Based Distributed Antenna System for 2G,3G,4G and WLAN Converged-Access Applications

作　　者：徐坤[1] 纪越峰[1] 戴一堂[1] 

机构地区：[1]北京邮电大学,北京100876

出　　处：《中兴通讯技术》2012年第5期16-21,共6页ZTE Technology Journal

基　　金：国家重点基础研究发展"(973")规划(2012CB315706);国家高技术研究发展"(863")计划(2011AA010306);国家自然科学基金(61120106001)

摘　　要：文章认为满足2G/3G/4G/WLAN四网融合业务的多样性、多业务等级、高品质要求,需要建设能够实现宽带接入的光载无线分布式天线网络。为了实现低成本、高性能、多业务融合接入的光载无线(ROF)分布式天线网络,文章基于商用的千兆以太网光器件,设计了低成本、宽带的光收发模块;利用光损耗和受激布里渊散射(SBS)效应对链路传输性能的影响,基于激光器线宽展宽技术,抑制了受激布里渊散射效应;采用副载波复用技术,实现了点到点的多业务混合传输;采用粗波分复用技术,实现了点到多点的多业务分布式传输。To provide diversity and high quality for 2G, 3G, 4G and WLAN converged services, we propose radio-over-fiber-based distributed antenna network （ROF-DAS） for broadband access. We design and fabricate low-cost broadband RQF transceivers based on commercial off-the-shelf 10 GbE optical components. These transceivers are designed to provide low-cost, high performance RQF-DAS with converged multiservice access. In this paper, we characterize the effects of optical loss and Stimulated Brillouin Scattering （SBS） on transmission performance. We also describe a way of broadening the laser linewidth to suppress SBS. Subcarrier multiplexing is used to achieve point-to-point multi-service hybrid transmission, and coarse wavelength division multiplexing is used to realize point-to-multipoint multiservice distributed transmission.

关 键 词：四网融合 光载无线 光收发模块 光损耗 受激布里渊散射 副载波复用 粗波分复用 

分 类 号：TN92[电子电信—通信与信息系统] TN929.11[电子电信—信息与通信工程]