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Mixed-type trust system and method in vehicle-mounted ad-hoc network

An in-vehicle ad hoc network and hybrid technology, applied in transmission systems, wireless communications, nan, etc., can solve the problems of complexity, accumulation of vehicle node reputation, and inability to punish vehicles with fake news, and achieve the effect of improving efficiency.

Inactive Publication Date: 2013-06-19
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

The process of establishing reputation using an entity-centric mechanism is relatively slow and complicated. This relatively "static" reputation maintenance scheme is not suitable for the highly dynamic environment of VANETs. At present, most of the reputation system construction in the VANETs environment uses event-centric mechanism
However, considering that in the initial stage of VANETs deployment, the density of so-called smart vehicles cannot well realize the forwarding of neighbor nodes, and the event-based reputation system cannot accumulate the reputation of vehicle nodes, so it can only be limited to the processing of the event itself, and cannot be punished. vehicle forged

Method used

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Embodiment Construction

[0031] Most of the time, most people tend to drive vehicles on a relatively fixed route in their daily life, such as going to work, school, and the market, so most vehicles have predefined daily trajectory constants. Basically the present invention innovatively proposes a hybrid event-centric and entity-centric reputation system.

[0032] like figure 1 As shown, the vehicles that participate in the entire life cycle of traffic events from occurrence, propagation, and termination are divided into three categories: the vehicle that directly senses the occurrence of a traffic event and sends the event first is called the event reporter; The vehicles receiving messages within the hop range are called event observers; the rest of the relay nodes participating in event propagation are called event participants. The core idea of ​​the framework is to make full use of distributed roadside units (RSUs) to realize an entity-centric reputation building mechanism, supplemented by an even...

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Abstract

The invention relates to a mixed-type trust system and a method in a vehicle-mounted ad-hoc network. The mixed-type trust system and the method in the vehicle-mounted ad-hoc network comprise vehicle-mounted components and basic facility components. Each vehicle-mounted component is installed and operated on a vehicle and comprises an interface module, a decision module, an entity reputation calculation module, an event reputation calculation module, an event spreading module, a communication module, an event processing module and a sensing module. Each basic facility component is installed and operated on a roadside unit (RSU), the RSUs are connected through a broadband wired network or a wireless network, and each basic facility component comprises a reputation storage module and a reputation synchronization module. The mixed-type trust system and the method in the vehicle-mounted ad-hoc network enable the vehicles to rapidly and accurately inquire and update reputation, the correctness of alarming information is judged, and therefore the vehicle receiving fake information can not be misdirected.

Description

technical field [0001] The invention belongs to the field of computer wireless networks, in particular to a trust system and an implementation method for a vehicle-mounted self-organizing network. Background technique [0002] With the development of the automotive electronics industry, research on Vehicular Ad hoc Networks has developed rapidly. VANETs are a type of nodes that move at high speed, are restricted by topology (road network), and the network topology changes rapidly. A special mobile Ad hoc network (MANET) characterized by it. Through the communication between vehicles and roadside base stations and between vehicles, VANET can provide road information safety applications such as accident warning and accident hidden danger reminder; traffic status query, entertainment, travel information download and other entertainment applications; and parking spots Search and other convenient applications. [0003] But the realization of all these applications requires an i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04W4/04G08B25/10
Inventor 丁箐李曦白天
Owner UNIV OF SCI & TECH OF CHINA
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