Research On The Response Strategy For Resisting Split-network Attack In Wireless Sensor Network

Wireless Sensor Network (WSN) is generally composed of large amount of cheap and micro sensors in area where is watched, and is constructed a multi-hop and self-organizing network system by wireless communication way. With the emergence of wireless devices and wider application, that leads to the phenomenon of interference between the wireless signals more serious. Intentional and unintentional interference are two main interferences in wireless sensor network. The unintentional interference is interference between wireless networks. Intentional interference includes the Sleep Deprivation Attack and Frequency Interference Attack, and others attack. The network will be split due to the above attacks. The split-network attack cause serious harm. The attack will directly lead to route reconstruction, communication blocking, shorten the network lifetime, and even paralysis of the entire network. Therefore, it has a very important value and practical significance to study the strategies for resisting the split-network attack.For the distinguishing feature of split-network attack, this paper proposes Frequency Hopping strategy which assesses the channel quality and pre-consultation channel to resist the split-network attack. The Frequency Hopping Model based on ARMA is proposed. The model includes evaluation of nodes’behavior, negotiation of frequency hopping, synchronization of frequency hopping and integration of network. The evaluation of nodes’ behavior based on ARMA which use flow data series forecasting to evaluate the node’s behavior. And then, the Nash equilibrium game theory is introduced, and the frequency hopping game model based on the above ARMA frequency hopping game is proposed. The game is incomplete information game. Through the formal definition and quantification of related factors of frequency hopping, then establish Bayesian hopping game tree. That lets the adaptive frequency hopping more rational.Theoretical analysis and experimental simulation shows that the frequency hopping model based on incomplete information game can effectively resist the split-network attack. That makes the hopping with adaptive and more rational. Thus that ensures the throughput of the network under the conditions of attack. And Packet loss rate is maintained at a normal and reasonable level. The life of wireless sensor networks is relatively extended.