SUPPORT OF PHYSICAL LAYER SECURITY IN WIRELESS LOCAL AREA NETWORKS
    9.
    发明申请
    SUPPORT OF PHYSICAL LAYER SECURITY IN WIRELESS LOCAL AREA NETWORKS 有权
    在无线局域网中支持物理层安全

    公开(公告)号:US20100131751A1

    公开(公告)日:2010-05-27

    申请号:US12499530

    申请日:2009-07-08

    IPC分类号: H04L29/06 H04L12/26

    摘要: A method and an apparatus for performing physical layer security operation are disclosed. A physical layer performs measurements continuously, and reports the measurements to a medium access control (MAC) layer. The MAC layer processes the measurements, and sends a security alert to a security manager upon detection of an abnormal condition based on the measurements. The security manager implements a counter-measure upon receipt of the security alert. The measurements include channel impulse response (CIR), physical medium power measurement, automatic gain control (AGC) value and status, automatic frequency control (AFC) gain and status, analog-to-digital converter (ADC) gain, Doppler spread estimate, and/or short preamble matched filter output. The security manager may switch a channel, switch a channel hopping policy, change a back-off protocol, or change a beamforming vector upon reception of the security alert.

    摘要翻译: 公开了一种用于执行物理层安全操作的方法和装置。 物理层连续执行测量,并将测量结果报告给介质访问控制(MAC)层。 MAC层处理测量,并且在基于测量检测到异常状况时向安全管理器发送安全警报。 安全管理员在收到安全警报后实施对抗措施。 测量包括信道脉冲响应(CIR),物理介质功率测量,自动增益控制(AGC)值和状态,自动频率控制(AFC)增益和状态,模数转换器(ADC)增益,多普勒扩展估计, 和/或短前同步码匹配滤波器输出。 在接收到安全警报时,安全管理器可以切换信道,切换信道跳变策略,改变退避协议或改变波束形成向量。