Wi-Fi信道流量短时抑制关键技术研究  

Key Technology of Wi-Fi Signal Suppression for Short Time

作　　者：李宝来 LI Baolai(Communication Military Representative Office of Navy Stationed in Shijiazhuang,Shijiazhuang 050081,China)

机构地区：[1]海军驻石家庄地区通信军事代表室,河北石家庄050081

出　　处：《无线电工程》2018年第12期1100-1103,共4页Radio Engineering

基　　金：国防重点实验室预研基金(614210403070717)

摘　　要：目前Wi-Fi信号几乎存在于人们日常生活中的方方面面,人群密集区也成为了Wi-Fi流量的密集区,如要在WiFi流量密集的区域接收Wi-Fi频段内的其他信号,就需要设法消除Wi-Fi信号对它的干扰。通过分析Wi-Fi协议,提出了一种利用Wi-Fi协议MAC层CTS控制帧的Wi-Fi信道流量短时抑制方案,并分析了其性能指标,该方案具有保密性好、操作性强的优势。实验结果表明,该方案可以将指定信道的Wi-Fi功率降低20 d B以上,实现了短时Wi-Fi信道流量抑制的功能。The Wi-Fi signal affects people's everyday life,and there is heavy Wi-Fi data flow where many people are gathered.To receive signals in the same frequency band as Wi-Fi in these areas,it is necessary to eliminate the interference of Wi-Fi signal.Based on analyses of Wi-Fi protocol,this paper proposes a scheme to supress short time Wi-Fi data flow by exploiting CTS controlling frame in MAC layer of Wi-Fi protocol.This scheme is has such advantages as better security and higher operability.The experiment results show that the proposed scheme can supress the signal power in designated channel by 20 dB and implement short-time suppression of Wi-Fi signal.

关 键 词：CTS 信道抑制 WI-FI 

分 类 号：TN91[电子电信—通信与信息系统]