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Data forwarding method and device based on social similarity and individual centrality of nodes

A technology of similarity and similarity value, applied in the field of IoT, which can solve problems such as data loss, dynamic change of IoT topology, and incomplete data.

Active Publication Date: 2018-03-13
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the energy consumption (that is, loss or instability) of sensor nodes will cause dynamic changes in the topology of the Internet of Things, which in turn will lead to data loss, resulting in incomplete collected data.
Therefore, the existing Internet of Things has the defect of poor data forwarding performance

Method used

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  • Data forwarding method and device based on social similarity and individual centrality of nodes
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  • Data forwarding method and device based on social similarity and individual centrality of nodes

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Embodiment Construction

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0070] The terms involved in this article are described in detail below.

[0071] Mobile-aware opportunistic network is a self-organizing network that does not require a complete path between the source node and the destination node, and uses the encounter opportunities brought by the movement of nodes with sensing functions to realize network communication. The algorithm is run on each mobile node carrying data, and the acquisition of the factor value (encoun...

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Abstract

Embodiments of the invention provide a data forwarding method and device based on social similarity and individual centrality of nodes. The method is applied to Internet of Things and the Internet ofThings comprises a plurality of mobile nodes. The method comprises the steps that a current mobile node uses a law of universal gravitation to determine a next-hop mobile node; the individual centrality values of the current mobile node and the next-hop mobile node respectively represent the mass in the law of universal gravitation; a social similarity value between the current mobile node and thenext-hop mobile node represents a distance in the law of universal gravitation; the individual centrality value and the social similarity value are determined based on the meeting frequency and the similarity between the current mobile node and the next-hop mobile node; and the current mobile node transmits to-be-forwarded data to the next-hop mobile node. According to the embodiments of the invention, the data forwarding performance is improved, so that the Internet of Things has a high data delivery rate, low delay, low message transmission average hop count, low message transmission failure rate and low energy consumption in application.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a data forwarding method and device based on node social similarity and individual centrality. Background technique [0002] IoT (Internet of things, Internet of Things), that is, the Internet where things are connected. It is widely used in the integration of networks through communication perception technologies such as intelligent perception, identification technology and pervasive computing. Therefore, it is called the third wave of the development of the world's information industry after computers and the Internet. It is the era of "informationization" important stage of development. The core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet. The Internet of Things client extends and expands to any item and item for information exchange and communication, that is, the relationship...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/18H04W40/20H04L12/733H04L12/721H04L45/122
CPCH04L45/124H04L45/126H04W40/18H04W40/20Y02D30/70
Inventor 李小勇李继蕊程翔龙高云全高雅丽
Owner BEIJING UNIV OF POSTS & TELECOMM
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