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Node similarity-based VANET community discovery method

A community discovery and similarity technology, applied in the field of Internet of Vehicles, which can solve the problems of decentralization and poor time complexity of Internet of Vehicles

Active Publication Date: 2018-10-26
TONGJI UNIV
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Problems solved by technology

Although these methods have some bright spots in their respective application scenarios, they do not perform well in terms of decentralization and time complexity in the Internet of Vehicles.

Method used

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  • Node similarity-based VANET community discovery method
  • Node similarity-based VANET community discovery method
  • Node similarity-based VANET community discovery method

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Embodiment Construction

[0072] The Internet of Vehicles is a mobile ad hoc network with highly dynamic topological changes. Vehicles are subject to road constraints, variable locations, and limited network resources, which have become important factors that hinder the real-time determination of the community structure of the Internet of Vehicles and lead to time loss and distortion of Internet of Vehicles data. factor. Existing research mainly focuses on using complex network static community discovery and evolution methods to detect the community structure of the Internet of Vehicles, and using key nodes in the community to forward information to achieve network connectivity. There are the following problems: the influence of various types of large-scale network nodes and large amount of data on the community detection process is not considered, which makes the community prone to excessive centralization and high computational time complexity. Aiming at the above problems, the present invention prov...

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Abstract

The invention provides a node similarity-based Internet of Vehicles community discovery method. The method comprises the steps that a community model in a VANET scene is studied, and a node similarity-based VANET community discovery method is provided; and according to the connectivity between RSU nodes and VANET communities, RSU node community attachments are reasonably partitioned, and then thenode similarity-based RSU infrastructure-loaded Internet of Vehicles community discovery method is provided. The method can help to better qualitatively and quantitatively analyzing the network structure, the change law and the traffic distribution of the community and has the important significance for constructing a VANET data forwarding route strategy and an accessibility scheme.

Description

technical field [0001] The invention relates to the field of the Internet of Vehicles, in particular to a community discovery method for the Internet of Vehicles. Background technique [0002] The high-speed movement of vehicle nodes and the interruption of network communication make the network topology of the Internet of Vehicles highly dynamic, which poses a huge challenge to its community discovery. The researchers extracted parameters such as vehicle physical location, density, speed, and road conditions, and performed cluster analysis based on these parameters, which has similarities to community discovery. The stable community discovery algorithm proposed by the researchers is an application of the LPA algorithm in VANET, and concepts such as node similarity have important reference significance. The researchers proposed a distributed community clustering method Sp-Cl, which clusters communities based on the relative mobility between local nodes. Nodes with similar m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04W4/40H04W4/02
CPCH04L41/12H04W4/02H04W4/40
Inventor 程久军陈震叶晨陈敏军
Owner TONGJI UNIV
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