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Trusted cooperation interference node selection method based on hidden Markov model

A cooperative interference and node technology, applied in wireless communication, safety devices, electrical components, etc., to achieve the effect of ensuring safety performance

Active Publication Date: 2020-05-29
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no effective method for selecting trusted cooperative jamming nodes based on hidden Markov model in the prior art

Method used

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  • Trusted cooperation interference node selection method based on hidden Markov model
  • Trusted cooperation interference node selection method based on hidden Markov model
  • Trusted cooperation interference node selection method based on hidden Markov model

Examples

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example 1

[0073] Example 1 Selection Strategy of Trusted Collaborative Interference Nodes in the Internet of Things

[0074] In the embodiment of the present invention, the secure transmission in the Internet of Things system is considered. This IoT system consists of two access nodes and various types of IoT devices. In this system, access node 2 wants to send information to an IoT device (smart kettle). Meanwhile, an eavesdropper (sweeping robot) intends to intercept and decode the message. In order to protect the sent messages from being decoded by eavesdroppers, another access node 1 selects an IoT device (smart safe) as a cooperative interference node. Cooperating jamming nodes send jamming signals to eavesdroppers so that messages cannot be decoded correctly.

[0075] However, there is a challenge that needs to be addressed in cooperative jamming techniques. Traditionally, cooperative jamming techniques are considered to be based on a fundamental assumption: cooperative jammin...

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Abstract

The invention provides a trusted cooperation interference node selection method based on a hidden Markov model. The method comprises the following steps: detecting behaviors of cooperative interference nodes by utilizing an energy detector, and judging whether the cooperative interference nodes send interference signals or not according to a detection result; according to a judgment result of theenergy detector, updating a reputation value of the cooperative interference node which sends the interference signal by utilizing a hidden Markov trust model; according to the updated reputation value of the cooperative interference node, judging whether the cooperative interference node meets the system requirement or not, and if so, continuing to use the cooperative interference node; otherwise, selecting other nodes as cooperative interference nodes. According to the embodiment of the invention, a new credible cooperative interference node selection mechanism based on the hidden Markov model is designed, the behavior of the cooperative interference node can be more dynamically analyzed, a credible cooperative interference node is selected, and the safety performance of a wireless communication channel is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of wireless communication networks, in particular to a method for selecting trusted cooperative interference nodes based on a hidden Markov model. Background technique [0002] With the development of wireless communication networks, people's dependence on wireless networks is gradually deepening, and the security of wireless networks has attracted people's attention. Traditional high-level encryption technology requires strong computing power support, which is more difficult for energy-constrained wireless nodes. Therefore, researchers set out to study physical layer security technology to improve the security of wireless communication. A mainstream physical layer security technology is cooperative jamming technology, which selects a cooperative jammer to assist in sending artificial noise to reduce the signal-to-noise ratio of the eavesdropper and achieve the purpose of secure communication. However, con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/00H04W24/06H04W12/08
CPCH04W24/06H04W12/66
Inventor 荆涛温营坤高青鹤霍炎
Owner BEIJING JIAOTONG UNIV
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