ZigBee and WiFi networking communication cognitive anti-interference method

A networking and gateway technology, applied in the field of ZigBee and WiFi networking communication cognitive anti-jamming, can solve the problems of inability to view the gateway data operation and transmission, lack of flexibility, etc.

Inactive Publication Date: 2019-05-28
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since each module is integrated, the hardware gateway cannot view the data operation and transmission inside the gateway, and the parameter settings of each module are fixed, which lacks flexibility.

Method used

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  • ZigBee and WiFi networking communication cognitive anti-interference method
  • ZigBee and WiFi networking communication cognitive anti-interference method
  • ZigBee and WiFi networking communication cognitive anti-interference method

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Embodiment Construction

[0037] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] The invention is divided into a cognitive module for reducing interference and a gateway function module for network communication. The cognitive module uses GNURadio to construct a flow diagram, then senses the surrounding spectrum environment by combining USRP operation, and uses files to store the spectrum information and amplitude information obtained by perception. Cognitive modules are designed as figure 1 shown.

[0039] The main implementation steps are as follows:

[0040] (1) The USRP down-converts the high-frequency analog signal to an analog intermediate frequency through the receiving sub-board, reduces the signal frequency, facilitates the sampling of the analog-to-digital converter ADC, and converts the analog signal into a digital signal

[0041] (2) The analog-to-digital converter ADC on the USRP motherboard is co...

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Abstract

The invention relates to a ZigBee and WiFi networking communication cognitive anti-interference method, and belongs to the technical field of heterogeneous wireless networks. The method comprises thefollowing steps: S1, a cognitive module reduces interference; The cognitive module constructs a flow graph by using GNU Radio, senses the surrounding spectrum environment by combining USRP operation,and stores spectrum information and amplitude information obtained by sensing by using a file; And S2, the gateway function module carries out networking communication. According to the invention, theGNU Radio is combined with the USRP to realize the cognitive module; Different working frequencies are configured for ZigBee and WiFi, communication interference between networks of the same frequency band is avoided, and ZigBee-WiFi protocol stacks are constructed in GNU Radio to form ZigBee-WiFi protocol stacks. And a gateway module is realized by combining the WiFi gateway flow diagram with USRP, so that networking communication of the heterogeneous wireless network ZigBee and WiFi is realized by using software radio.

Description

technical field [0001] The invention belongs to the technical field of heterogeneous wireless networks, and relates to a ZigBee and WiFi networking communication cognitive anti-interference method. Background technique [0002] In recent years, wireless networks have developed rapidly, and communication standards such as WiFi and ZigBee have been widely used. The main application scenario of WiFi is LAN access, and the application scenario of ZigBee is low-power short-distance point-to-point network transmission. The ZigBee protocol has the characteristics of low speed and low power consumption. Through the mesh function of the ZigBee protocol, a large-scale sensor network can be quickly realized. The WiFi protocol has the characteristics of high speed and easy access to the Internet. The combination of the powerful functions of the ZigBee wireless sensor field and the special advantages of the local IP network communication field of WiFi has good adaptability and wide cove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04W88/16H04W84/18H04W4/80H04B17/382H04W16/14
Inventor 李永刚王书豪张治中
Owner CHONGQING UNIV OF POSTS & TELECOMM
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