A Secure Routing Scheme For Mobile Wireless Sensor Network

Mobile wireless sensor network consists of wireless communication technology, embedded technology and sensor technology and other basic subjects, which can be widely used in environmental monitoring, smart home, military operations, and other fields, has characteristics of self-organization, jump and limited resources.Mobile wireless sensor networks have broad application prospects in the military field, Network security is very necessary. Sensor networks face various attacks, especially such as packet loss, forgery, slander, etc. In addition, due to the limited energy of sensor nodes, the design of routing algorithm for mobile wireless sensor networks needs to consider the problem of energy consumption. The mobile wireless sensor networks mainly considered in the point of network security and energy consumption in this paper to design a secure and energy-balanced routing algorithm. The full text work is as follows:(1)WSN’s architectures, main features, challenges, key technologies and application prospects are researched. The hardware structure, network model and topology, energy consumption model of wireless communication, network protocol stack structure and neighbor sensing model are introduced.(2) Common malicious node attacks are summarized, then in view of each kind of attack behavior, its characteristic and the detection method is analyzed, the specific monitoring indicators are given, such as the packet loss rate of nodes for the black hole attacks and gray hole attacks. A distributed monitoring and reputation evaluation algorithm is proposed based on the watchdog, neighbor monitoring and trust evaluation mechanism, which is used to detect malicious node attacks.(3) The limited energy of sensor nodes is considered, energy efficient routing algorithm and energy balance routing algorithm are analyzed, and several representative routing algorithms are studied in detail. The depth, residual energy and energy density of nodes are considered, an energy-balanced routing algorithm is proposed that combines with the security mechanisms to ensure the security of network and prolong the lifetime of the network(4) Through the simulation experiment on the platform of MATLAB the results showed that: 1, this algorithm can accurately update the depth of nodes. 2, the detection algorithm can detect malicious nodes effectively, and can effectively resist malicious recommendation and malicious slander.3, this algorithm can prolong the network life cycle than TESRP algorithm, and has a lower false alarm rate and false alarm rate.