Multi-point centralized anti-interference method and system based on spectrum situation integrated sensing

A centralized, spectrum technology, applied in the MESH network field to improve user experience and avoid service interruptions

Active Publication Date: 2016-05-04
CHINA ELECTRONICS TECH GRP NO 7 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The promotion and application of the anti-jamming technology in the MESH network in the complex electromagnetic environment in the field needs to solve three major technical problems in the existing anti-jamming technology:

Method used

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  • Multi-point centralized anti-interference method and system based on spectrum situation integrated sensing
  • Multi-point centralized anti-interference method and system based on spectrum situation integrated sensing
  • Multi-point centralized anti-interference method and system based on spectrum situation integrated sensing

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Embodiment 1

[0072] Such as Figure 5 As shown, the multi-point centralized anti-jamming method based on spectrum situational comprehensive awareness provided by the present invention comprises the following steps:

[0073] S1. Each aggregation root node and sub-node detects the number of PHYERR errors generated by the PHY layer of the node within a unit time, and divides them into different interference levels according to the number. Each interference level corresponds to a group for reducing PHYERR The PHY layer parameter set;

[0074] S2. Set the PHY layer parameter sets corresponding to the interference levels determined by the aggregation root node and the child nodes to their respective PHY layers;

[0075] S3. Detect again the number n of PHYERR errors generated by the respective PHY layers of the aggregation root node and child nodes within a unit time, and judge whether it is greater than or equal to k. If the respective interference levels of the aggregation root node and child...

Embodiment 2

[0098] At the same time, the present invention also provides a system using the above method, such as Figure 6 As shown, the technical scheme of the system is as follows:

[0099] Including the power spectrum detection control module, power spectrum detection module, ANI module, ANI control module, ANI status monitoring module set in the aggregation root node or byte node, the flow monitoring module set in the aggregation root node, and the flow monitoring module set in the aggregation root node The traffic status monitoring module in the node, the spectrum analysis and decision-making module, and the channel scanning module set up in the central network management node;

[0100] Wherein the ANI module is used to determine the PHY layer parameter set corresponding to the interference level;

[0101] The ANI control module is used to detect the number n of PHYERR errors generated by the PHY layer of the aggregation root node and sub-nodes per unit time, and when n is greater ...

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Abstract

The present invention proposes a multi-point centralized anti-interference method and system based on spectrum situation integrated sensing. A wireless MESH network has three anti-interference technical problems in a complex electromagnetic environment, the problems are an isolated node problem in an MESH network with receiving channel blocking caused by a non-802.11 interference signal, a service interruption problem caused by channel scanning and an additional high cost frequency sweep hardware support problem in a traditional spectrum sensing method, due to the above three major problems, an existing MESH product is not suitable for a field complex electromagnetic environment working scene, the three problems become the technical bottleneck of MESH product development and promotion, and the three problems are completely solved by the method. The invention provides a multi-point centralized anti-interference technical scheme based on spectrum situation integrated sensing, the scheme is simple and practical and is easy to realize and implement without additional hardware cost, the comprehensive sensing ability of a spectrum state and the centralized spectrum analyzing and decision-making ability in the true sense of MESH equipment are realized and are successfully applied to the MESH equipment, and the performance of the MESH equipment is significantly improved in promotion and application.

Description

technical field [0001] The present invention relates to the field of MESH networks, and more specifically, to a multi-point centralized anti-jamming method and system based on spectrum situational comprehensive awareness. Background technique [0002] The core of the multi-point centralized anti-jamming technology based on spectrum situational awareness is the use of cognitive radio technology. The cognitive capability of cognitive radio (Cognitive Capability) can enable cognitive radio to interact with the surrounding environment in real time, and then determine the appropriate communication parameters. Wireless spectrum resources to adapt to dynamic environments. These tasks require cognitive radios to operate adaptively in the open spectrum as figure 1 shown. The anti-jamming method based on spectrum situational awareness mainly solves the following problems: spectrum sensing (SpectrumSensing), spectrum analysis (SpectrumAnalysis), and spectrum decision (SpectrumDecisio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04L27/00H04W24/10
CPCH04L27/0006H04W16/14H04W24/10
Inventor 曹叠张永忠沈勇李新征
Owner CHINA ELECTRONICS TECH GRP NO 7 RES INST
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