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Method for locating interference source of Internet of Vehicles

A positioning method and interference source technology, applied in electrical components, wireless communication, etc., can solve the problems of irregular shape of the interference area, high computational complexity, and large measurement overhead, and achieve low measurement overhead, low computational complexity, and improved The effect of accuracy

Active Publication Date: 2017-02-22
THE 36TH INST OF CENT MILITARY COMMISSION EQUIP DEV DEPT
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AI Technical Summary

Problems solved by technology

However, the shape of interference regions in real environments is often irregular
[0005] Since the nodes in the Internet of Vehicles are constantly moving, the above-mentioned interference source location algorithm for the static multi-hop wireless network needs complex information collection and calculation processes when applied to the Internet of Vehicles. The measurement overhead is high, the calculation complexity is high, and the positioning accuracy is low.
There is no report on the interference source location method in the Internet of Vehicles environment in the prior art

Method used

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  • Method for locating interference source of Internet of Vehicles
  • Method for locating interference source of Internet of Vehicles
  • Method for locating interference source of Internet of Vehicles

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Embodiment Construction

[0022] like figure 1 As shown, a method for locating interference sources in the Internet of Vehicles of the present invention is characterized in that it comprises the following steps:

[0023] (10) Interference source direction fitting: each node selects a moving trajectory, monitors interference signals, and determines the interference source direction through fitting;

[0024] like figure 2 As shown, the (10) interference source direction fitting step includes:

[0025] (11) Initialization: set the number of times of movement k=1, set the center of the movement trajectory (x, y) as the current position of the node (x 0 ,y 0 ), ie (x,y)=(x 0 ,y 0 ), set the initial trajectory radius as r meters,

[0026] Wherein, the initial moving track radius r takes an integer from 50 to 100 meters;

[0027] For example, set the initial trajectory radius as r=50 meters.

[0028] (12) Calculation of moving trajectory: The center of the moving trajectory (x, y) and the radius r of...

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Abstract

The invention discloses a method for locating an interference source of the Internet of Vehicles. The method comprises the following steps: (10) fitting an interference source direction: each node selects a movement trajectory, monitors an interference signal and determines the interference source direction by fitting; (20) collecting fitting information: the current node performs message interaction with a neighbor node to collect the interference source direction of fitting of the neighbor node; and (30) estimating the position of the interference source: the current node estimates the position of the interference source according to the interference source direction fitted by itself and the interference source direction fitted by the neighbor node. The interference source estimation method provided by the invention is small in measurement cost, low in computational complexity and high in locating accuracy.

Description

technical field [0001] The invention belongs to the technical field of network data communication, in particular to a method for locating interference sources of the Internet of Vehicles. Background technique [0002] The Internet of Vehicles is a wireless self-organizing network built between vehicles in a self-organizing and self-managing manner to realize data monitoring, fusion, distribution and sharing under vehicle moving conditions, and is an important foundation for building intelligent transportation systems and smart cities. However, the open and shared nature of the wireless channel of the Internet of Vehicles makes it vulnerable to a variety of interference attacks. Therefore, it is of great significance to quickly and efficiently determine the location of the interference source for the design and implementation of the anti-interference mechanism of the Internet of Vehicles. [0003] IoV interference source location refers to the process in which the interfered...

Claims

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Application Information

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IPC IPC(8): H04W24/08H04W64/00
CPCH04W24/08H04W64/00
Inventor 魏祥麟王统祥范建华胡飞孙钦胡永扬李冉
Owner THE 36TH INST OF CENT MILITARY COMMISSION EQUIP DEV DEPT
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