Content-oriented trust evaluation system and method in vehicle-mounted ad hoc network environment

A vehicular ad hoc network and evaluation system technology, applied in the field of content-oriented trust evaluation system under the vehicular ad hoc network environment, to achieve the effect of improving driving safety and comfort, ensuring accuracy, and reducing impact

Active Publication Date: 2019-11-12
XIDIAN UNIV
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Problems solved by technology

However, the existing schemes use a fixed evaluation strategy, and do not dynamically update the strategy according to the evaluation effect and the driving environment of the vehicle node to ensur

Method used

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  • Content-oriented trust evaluation system and method in vehicle-mounted ad hoc network environment
  • Content-oriented trust evaluation system and method in vehicle-mounted ad hoc network environment
  • Content-oriented trust evaluation system and method in vehicle-mounted ad hoc network environment

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] see figure 1 , a content-oriented trust evaluation system under the VANET environment, including an information processing module, a trust evaluation module and a policy adjustment module;

[0045] The information processing module is used to standardize the received internal information and external information and store them in the local database;

[0046] The trust evaluation module is used to receive the trust evaluation request, and access the local database to obtain information related to the trust evaluation request, and then access the policy adjustment module to obtain the best evaluation strategy based on the obtained information related to the trust evaluation request, using the trust evaluation function and the trust evaluation function Calculate the trust value based on relevant information, and send the trust value to the trust evaluation request...

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Abstract

The invention discloses a content-oriented trust evaluation method in a vehicle-mounted ad hoc network environment. Historical trust evaluation results can be learned through the strategy adjustment module to dynamically determine trust evaluation strategies under different situations; in addition, the trust evaluation module obtains the optimal evaluation strategy through the trust evaluation request and the trust evaluation request related information, and the evaluation accuracy of 90% or above can still be kept under the condition that the proportion of false information transmitted in thenetwork exceeds 50%. Therefore, the influence of false information in the node decision-making process is reduced, and the driving safety and comfort are improved.

Description

technical field [0001] The invention belongs to the field of information security of the Internet of Vehicles, and in particular relates to a content-oriented trust evaluation system and method under a vehicle ad hoc network environment. Background technique [0002] Vehicular ad hoc network is a kind of mobile ad hoc network, which has the characteristics of fast node movement, open information transmission environment and highly dynamic topology. In the vehicle self-organizing network, the network nodes can transmit and share information through vehicle-to-vehicle communication technology (Vehicle to Vehicle, V2V) and vehicle-to-infrastructure communication (Vehicle to Infrastructure, V2I), so as to provide drivers and passengers with A safe, reliable driving environment and rich entertainment resources improve traffic efficiency and user experience. The premise of achieving this goal is that the messages transmitted in the network must be safe and reliable. However, sen...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/20H04L67/12
Inventor 郭晶晶马建峰刘志全杨腾飞孟倩侯高攀张涛
Owner XIDIAN UNIV
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