北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2023, Vol. 46 ›› Issue (4): 40-45.

• 论文 • 上一篇    下一篇

面向道路实况的车联网共享消息可信评估模型

张佳敏,帅莉莎,董高雅,阳小龙   

  1. 北京科技大学 计算机与通信工程学院
  • 收稿日期:2022-06-03 修回日期:2022-07-27 出版日期:2023-08-28 发布日期:2023-08-24
  • 通讯作者: 阳小龙 E-mail:yangxl@ustb.edu.cn
  • 基金资助:
    国家自然科学基金项目; 工信部 2020 年工业互联网创新发展工程项目

A Truth-Oriented Trust Evaluation Model of Shared Messages about Road Events in Internet of Vehicles

ZHANG Jiamin,  SHUAI Lisha, DONG Gaoya, YANG Xiaolong   

  • Received:2022-06-03 Revised:2022-07-27 Online:2023-08-28 Published:2023-08-24

摘要: 车联网环境下车辆间共享路况消息的可信性是事关交通出行效率和司乘人员安全的关键决策依据为此本着察其言,观其行,重事实"的理念,提出一个面向道路实况的共享消息多维协同信任评估模型在实体维度,依据车辆作为发送者和评估者的信任值计算实体信任值,解决因忽略实体的评估者角色而造成其信任值不准确的局限在行为维度为了对消息记录条数和真实提供频次不同的车辆实现公平评估根据车辆对事件的共享率和诚实转发率计算车辆的行为信任值在事实维度,定义以事实为中心的信任纠偏,以修正对诚实车辆的非主观恶意行为的误判仿真结果表明,所提模型可以准确公平地评估消息的可信性,有助于抑制虚假消息的散播

关键词: 车联网, 消息可信性, 信任评估模型

Abstract: In the Internet of vehicles, the reliability of road condition message shared between vehicles is the key decision-making basis for the efficiency of transportation and the safety of drivers and passengers. To this end, a multi-dimensional collaborative trust evaluation model for shared message based on road facts is proposed, which is based on the concept of “understanding what they say, observing what they do, and emphasizing facts”. In the entity dimension, the entity trust value is calculated according to the trust value of the vehicles acted as sender and evaluator, which overcomes the limitation of inaccurate trust value caused by ignoring the evaluator role of the entity. In the behavior dimension, to achieve a fair evaluation of vehicles with different message records and frequency of real provision, the behavior trust value of the vehicles is calculated according to the sharing rate and honest forwarding rate to the event. In the fact dimension, the fact-centered trust correction is defined to correct misjudgment of the non-subjective malicious behavior of honest vehicles. The simulation results show that the proposed model can accurately and fairly evaluate the credibility of messages, which contributes to suppress the spread of false messages.

Key words: Internet of vehicles, credibility of the message, trust evaluation model

中图分类号: