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Delivery method of security information in vehicle wireless ad hoc network based on information correlation

A wireless self-organizing network and security information technology, applied in wireless communication, security devices, network topology, etc., can solve problems such as message transmission collisions, achieve the effect of reducing message collisions and reducing redundant message sending

Inactive Publication Date: 2011-12-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a busy traffic environment, dense vehicles competing to forward messages will cause serious message transmission collisions

Method used

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  • Delivery method of security information in vehicle wireless ad hoc network based on information correlation
  • Delivery method of security information in vehicle wireless ad hoc network based on information correlation
  • Delivery method of security information in vehicle wireless ad hoc network based on information correlation

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Embodiment Construction

[0034] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] In the following description of the specific implementation of the technical solution, we call a vehicle equipped with WAVE (Wireless Access in Vehicular Environments, wireless access in vehicle environment) equipment a node in the vehicle wireless ad hoc network.

[0036] The hypothetical premise that the present invention is implemented has: suppose that vehicle can obtain the absolute position information Position(x) of oneself under the absolute coordinate system that GPS establishes from GPS j ,y j ), the vehicle is equipped with sensors that can collect the speed, direction and other states of the vehicle nodes. Any node j assigns its own ID number ID j , absolute position information Position(x j ,y j ), the lane number LaneID j and running speed v j It is encapsulated in beacon packets, and perio...

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Abstract

The present invention relates to a method for delivering security information of a wireless ad hoc network for vehicles based on information correlation, which includes the following steps: Step 1: Source node generates and sends WSM message process: source node s discovers an abnormal event, and sends the message according to the correlation of information Determine the influence time, influence distance and influence lane set of the safety information; the source node s initializes the remaining influence time of the message, and selects the backward direction as the direction to be sent of the message. Step 2: The relay node relays and forwards the WSM message. The beneficial effects of the present invention are: taking into account the three correlation parameters of the safety information, the influence time, the influence distance and the influence lane, in the delivery process of the safety information, and adopting a designated relay in the relay process, insisting on relaying The idea is to reduce redundant message sending and message collision.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a multi-hop broadcast delivery method suitable for information of a vehicle wireless ad hoc network (VANET, Vehicular Ad hoc Networks). Background technique [0002] Vehicle wireless ad hoc network (VANET, Vehicular Ad hoc Networks) refers to an open mobile Ad Hoc network composed of mutual communication between vehicles on the road and between vehicles and fixed access points on the roadside. It is a self-organizing and open-structured network. inter-vehicle communication network. The primary goal of the wireless ad hoc network for vehicles is to provide open public road traffic safety services, specifically to ensure the safety of vehicles by exchanging safety information between vehicles, so how to ensure that safety information is received by the required vehicles reliably and quickly is particularly important. [0003] Safety information is used ...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W12/00H04W84/18H04W12/03
Inventor 冷甦鹏黄龙娇邵彩幸段景山
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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