Design And Implementation Of Router Partner Identification System Based On 802.11 And Openwrt

Nowadays,with the gradual development of the domestic intelligent router,the domestic commercial Wifi has gradually matured.The current commercial Wifi network architecture to AC(Access Point Controller)+ AP(Access Point)mode,cloud control smart wireless router as the main representative.These two methods take AC or cloud as the core of the whole commercial Wifi and control the wireless router to perform service switching,load switching and the like through man-made or program.However,these two modes have high requirements for their own control of core equipment and fixed network environment.Due to the imperfect control equipment or unstable fixed network environment,resulting in poor customer experience on the Internet,wireless router failure reported slow and fault repair and maintenance of high cost and many other issues to limit the development of commercial Wifi again.In this dissertation,by studying the scalability of information element of 802.11 wireless protocol management frame and making full use of the sending process of wireless Beacon frame,a smart wireless router partner identification system is designed and implemented on the mt7620a-based intelligent router.This dissertation first speculates the scenes to be faced by the design and designs the operation fields of the information element of the partner recognition system according to the scenes.The design of the two provides the theoretical basis for the whole system.Then by modifying rt2860v2 wireless driver source code and port it to the OpenWrt system to complete the design of the operation of the field.Then design and implement the communication module between wireless router driver layer and application layer.Finally,the implementation of the system will be applied to simulate the scene to test.Test shows when the load is too high and replacement partner scene,need to replace the partner terminal network service recovery 1?3s after the delay,the other terminal services is not affected;the average partner 30ms fixed network fault fault information will be transmitted to other partners,the other partners 20ms report the fault information and fault relay partners in 100ms,terminal the user connected to the network fault partner at most 0.2s network service delay.This dissertation is a verification of the extensibility of the wireless protocol management frame information element and a new attempt to build a wireless router.The partner recognition system itself also has scalability.System operation field can be expanded according to different needs.And these improvements will make partner identification system more perfect.