Combined channel control method based on evaluation and optimum selection

Abstract

The invention discloses a combined channel control method based on evaluation and optimum selection. The method comprises the following steps that 1) channels to be controlled of a wireless network in an area to be controlled are selected; 2) a control system scans the wireless network environment of the area to be controlled to obtain the number of control points and a distance between the control system and each control point in each channel to be controlled; 3) the control system computes a percentage mean value U1 of a difference between the distance between each control point in each channel to be controlled and the control system and a reference distance dS relative to the ds; the control system computes a percentage mean value U2 of a difference between the total number of the control points in each channel to be controlled and a reference control number Q relative to the Q; and 4) the control system obtains a judging threshold U according to a weighted average of the U1 and the U2; if U is greater than 1, the control system adopts a channel occupation method to control the channels to be controlled; if U is not greater than 1, the control system adopts a deauthentication or disassociation method to control the channels to be controlled. The combined channel control method has the advantages of precise control and small electromagnetic environmental pollution.

Description

technical field [0001] The present invention relates to a WLAN (Wireless Local Area Network, wireless local area network) communication channel control method, specifically, a combined channel control method based on evaluation and selection. Background technique [0002] The wireless local area network is composed of a wireless network card (Network Interface Card, referred to as NIC), a wireless receiver (Access Point, referred to as AP), a computer and other network equipment. Electromagnetic waves are used as carriers, and radio frequency technology is used for network connection and transmission. An open physical system, this open nature determines that while it provides the convenience of networking, it also makes it difficult to limit the physical access to network resources, so it is more vulnerable than wired networks in terms of security performance. Wireless local area networks have removable Therefore, each node in the mobile network does not have sufficient phys...

AI Technical Summary

Problems solved by technology

[0008] 1. This solution can only block channels, but cannot control the wireless local area network

Unable to intelligently manage and control the wireless LAN environment according to user needs

[0009] 2. Due to the openness of the working frequency band specified by the current wireless local area network protocol (802.11 protocol family), it is widely used in many electronic products, so it is easy to interfere with each other, resulting in communication failure or communication interruption

Interfering with a specific wireless network through a jammer will cause great damage to the wireless network, and the source of interference is not easy to find

[0010] 3. Due to the white noise signal, the transmission power of the pseudo-random sequence signal is large enough to suppress the working frequency band specified by the wireless local area network protocol (802.11

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