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Method for calculating trust values of wireless Mesh network nodes

A technology of network nodes and computing methods, applied in wireless communication, electrical components, transmission systems, etc., can solve problems such as the inability to objectively and accurately describe the trust value, the high computational complexity and communication cost, and the inability to apply to wireless mesh networks.

Inactive Publication Date: 2014-09-10
LANZHOU JIAOTONG UNIV
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Problems solved by technology

[0004] The present invention provides a trust value calculation method for wireless Mesh network nodes, aiming to solve the trust value calculation method currently proposed, which has the disadvantages that the trust value cannot objectively and accurately describe the credibility of the node, the calculation complexity and the high communication cost. , can not be applied to the problem of wireless Mesh network

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  • Method for calculating trust values of wireless Mesh network nodes
  • Method for calculating trust values of wireless Mesh network nodes
  • Method for calculating trust values of wireless Mesh network nodes

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Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the invention.

[0040] figure 1 The implementation process of the method for calculating the trust value of the wireless Mesh network node provided by the embodiment of the present invention is shown.

[0041] The method for calculating the trust value of the wireless Mesh network node includes the following steps:

[0042] Step S101: Collect the number of interactions between nodes in different time slices, build a time series according to the obtained data, predict the number of interactions between nodes in the next time slice through the triple exponential smoothing method, and use the relative error between...

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Abstract

The invention discloses a method for calculating the trust values of wireless Mesh network nodes. The method comprises direct trust value calculation, indirect trust value calculation and comprehensive trust value calculation, wherein the direct trust value calculation is carried out for acquiring the interaction times of different time slices among the nodes and establishing a time sequence according to the obtained data at first, and then predicating the interaction times of the next time slice among the nodes by virtue of three times of an exponential smoothing method, and taking the relative errors of the interaction times predicated values and the actual values as the direct trust values of the nodes; the calculation formula of indirect trust values is obtained in a multi-path trust recommendation mode; comprehensive trust values are obtained by virtue of integrated computation for the direct trust values and the indirect trust values. The invention provides a method for calculating the trust values of the nodes, according to the specific condition of a network, adaptive smoothing factor alpha, credibility threshold value Phi, the value of a direct trust value weight beta are selected, the time attenuation characteristic and objectivity of the trust values are guaranteed, the credibility of the nodes is objectively and accurately described, the computation complexity is low, and the method is suitable for a wireless Mesh network.

Description

technical field [0001] The invention belongs to the technical field of computer information security, and in particular relates to a method for calculating trust values ​​of wireless Mesh network nodes. Background technique [0002] The current measures for wireless network security mainly include security measures based on cryptography and security mechanisms based on trust models. Cryptography technology can better defend against various external attacks, but it cannot effectively defend against the attacks of malicious nodes inside the network; the trust model based on the trust value is studied how to use the network node interaction process in a heterogeneous and uncertain network environment. Various subjective and objective evidences are presented to dynamically evaluate the credibility of other nodes and make decisions that are beneficial to upper-layer applications. The trust model participates in the routing selection and data forwarding of nodes, and can detect a...

Claims

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Application Information

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IPC IPC(8): H04W12/00H04W88/18H04L29/06
Inventor 宋晓宇邱泽阳王玉鑫任利宁
Owner LANZHOU JIAOTONG UNIV
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