The Key Techniques Of Wireless Sensor Network Based On The Software Defined Network

The communication traffic is growing between the two users, and also between the terminal with alarge data center, the traditional network architecture is difficult to meet network communicationefficiency and high safety standards. Based on the traditional architecture of wireless sensor networks(Wireless Sensor Networks, WSN) is also facing two problems, one side is that existing WSN can onlydeploy a single routing protocols, routing policies can not be changed flexibly according to the networkconditions; other hand with the invasion against the WSN way more diverse, WSN intrusion detectionmethod based on traditional architecture is single, poor detection.In order to solve the traditional network architecture for WSN routing transmission and securityrestrictions, this paper introduces a new network architecture---Software Defined Network (SDN),network transmission and phase separation logic control, distributed collaborative computing and acombination of centralized management and control, improve network routing efficiency and reduce nodeenergy consumption and improve intrusion detection accuracy and reduce false alarm rate.Paper work done as follows:1.A comprehensive summary analysis of the traditional network architecture based on wireless sensornetwork routing protocol for wireless sensor analyzes the advantages and disadvantages of the existingrouting protocols, pointed out the low efficiency and high energy consumption of the problems they face inthe traditional architecture.2, The paper will be based on the OpenFlow SDN architecture introduction of wireless sensornetworks, proposed a new type of WSN architecture using hybrid routing mechanism that allows wirelesssensor networks with flexible programmable scalability. By contrast with the traditional routing algorithmsimulation analysis shows that under the new architecture for wireless sensor networks with high efficiency,low power consumption advantages.3, Summarizes and analyzes the WSN traditional network intrusion detection architecture program,pointing out its deficiencies, such restrictions can only be deployed by the node energy lightweightalgorithm, a single detection mechanisms can not achieve a combination of distributed and centralized testing, inadequate response mechanism flexible. This paper proposes a new architecture basedvulnerability scanning and intrusion detection programs combining, through comparative analysis to verifythe advantages of intrusion detection model under the new architecture.