无线认知传感器网络主用户模拟攻击博弈研究

Research on the Primary User Emulation Attack Games in Wireless Cognitive Sensor Networks

博弈论是无线认知传感器网络的重要分析工具,而主用户模仿(PUE)攻击是无线认知传感器网络面临的一种严重威胁。在这种攻击中,攻击者冒充主用户,发送干扰信号将次用户吓跑。如果存在多个可供选择的信道,则次用户需要决定使用哪条信道,而攻击者需要决定堵塞哪条信道,这样就形成了一种博弈。文章分析了两种对抗PUE攻击的方法,描述了两个玩家参与的战略式博弈,研究了针对无线认知传感器网络中排队动态特性的全网博弈。

Game theory is an important analysis tool in Wireless Cognitive Sensor Networks （WCSN） and Primary User Emulation （PUE） attack is a serious threat to WCSN, in which the attacker pretends to be a primary user and sends interference signals to scare secondary users away. The secondary users need to make decisions on the channel use while the attacker needs to decide which channel to jam （if it is unable to jam all channels）, thus forming a game. This paper analyzes two approaches to combat the PUE attack, describes a strategic-form game where two players are involved. In conclusion, we analyze the network-wide game for the queuing dynamics in WCSN.