基于白频谱的超级WiFi技术研究及实地测试验证  

Research and Test Verification of Super WiFi Technology Based on White Space

作　　者：王腾蛟[1] 蔡培翔 马骏[1] 王军[1] 潘长勇[1,2] 李建岐 刘伟麟 

机构地区：[1]清华大学电子工程系清华信息科学与技术国家实验室,北京100084 [2]数字电视国家工程实验室(北京),北京100191 [3]国家电网智能电网研究院,北京102209

出　　处：《电视技术》2015年第16期92-96,104,共6页Video Engineering

基　　金：质检公益性行业科研专项经费资助项目;国家电网公司"基于电力线通信的能源物联网关键技术研究"项目

摘　　要：近几年来,随着世界范围内通信业务的增长,频谱资源日渐紧张。认知无线电技术的提出为人们利用电视广播"白频谱"进行通信提供了可能。IEEE802.22工作组颁布的IEEE802.22标准对认知无线电技术进行了规范,在此标准上设计的超级WiFi设备理论上能够对低人口密度地区实现良好的网络覆盖。介绍了IEEE802.22标准提出的背景和主要技术内容,阐述了Carlson Rural Connect超级WiFi设备的工作原理,并利用该设备进行了实验室和场地数据测试和整理,给出超级WiFi和白频谱设备在不同环境不同模式下的数据率、接收灵敏度和邻道干扰等信息,为国内开展超级WiFi和白频谱通信应用提供技术参考。Recently, with the increase in communication service, the spectrum resources is increasingly scarce. The conception of Cognitive Radio, which is standardized by IEEE802. 22 standard, provides the possibility for communicating in the TV white space band and theoretically the super WiFi equipment based on the standard can provide good network coverage for places with low den- sity of population. The background and main technology of IEEE802. 22 standard is introduced and the working principle of Carlson RuralConnect super WiFi Equipment is discussed in this article. The laboratory test and field test are done with the equipment, which give the data rate, receiving sensitivity and adjacent channel interference information and provide technical reference for communication with super WiFi and white space in China.

关 键 词：超级WiFi 白频谱 IEEE802.22 CARLSON RuralConnect 

分 类 号：TN925[电子电信—通信与信息系统]