VANET trust model working method based on combination of message type and trust value confidence

A technology of message type and working method, applied in the direction of digital transmission system, electrical components, transmission system, etc., to achieve the effect of reducing network consumption and reliable trust

Active Publication Date: 2020-08-21
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technology described by this patented system helps manage networks efficiently while reducing their size or complexity. It does this through storing all communications between devices within itself without relying solely upon any specific entity like an intermediary device called the router (Routers). Instead, instead, these systems use a specialized mechanism known as a distribution trust model where every link has two levels: one level being responsible for transmitting messages from other routers towards another machine located at home; and the second layer taking care of ensuring reliability over received packets. By analyzing how well certain connections have been established across different layers before sending them downstream, we aimed to determine which links should be chosen for transmission.

Problems solved by technology

The technical problem addressed in this patents relates to developing reliable mechanisms for managing interactions within electronic networks such as those used in vehicles or other applications where there can be potential harm caused from external threats like hackers or cyber-attacks. Current methods rely heavily upon static belief structures with fixed rules but cannot account for these issues due to their inherently limited cognitive capabilities.

Method used

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  • VANET trust model working method based on combination of message type and trust value confidence
  • VANET trust model working method based on combination of message type and trust value confidence
  • VANET trust model working method based on combination of message type and trust value confidence

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Embodiment

[0062] Trust is the subjective judgment of one node about another node's behavior that decays over time. In real life, people usually prefer to associate with people with high trust value based on their direct experience, but they do not have direct contact with anyone and sometimes direct experience is not completely reliable, in this case It needs other people's experience to provide reference, that is to say, trust can be divided into direct trust and indirect trust. Similarly, in this trust model, if the source node wants to select a next-hop node through the trust value, it is not enough to calculate the direct trust based on its own direct experience. Indirect trust is calculated by experience, and finally a comprehensive trust value is obtained as the basis for selecting the next hop node.

[0063] 1. Direct trust;

[0064] According to the definition of direct trust, direct trust is evaluated based on the communication history between the source node and the target node

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Abstract

The invention discloses a VANET trust model working method based on combination of a message type and trust value confidence. According to the invention, each node stores own communication history record and trust data, the idea of a distributed trust model is used, and a central node does not exist. In this way, network consumption can be reduced to cope with explosive data growth. According to the method, the credibility confidence coefficient is added into the model, and the influence of time attenuation and dishonest recommendation on the credibility is considered, so the credibility is more reliable. According to the method, decision making is carried out in combination with the message type, the trust degree and the trust degree confidence degree instead of only taking the trust degree as a basis during decision making, and the next-hop node is randomly selected for communication.

Description

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Claims

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Application Information

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Owner CHANGAN UNIV
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