Data forwarding method and device based on node social similarity and individual centrality

Abstract

Embodiments of the present invention provide a data forwarding method and device based on node social similarity and individual centrality. The method is applied to the Internet of Things, and the Internet of Things includes multiple mobile nodes; the method includes: the current mobile node uses the law of universal gravitation to determine the next-hop mobile node; the individual centrality values ​​of the current mobile node and the next-hop mobile node represent respectively The quality in the law of gravity; the social similarity value between the current mobile node and the next-hop mobile node represents the distance in the law of gravity; the individual centrality value and the social similarity value are based on the distance between the current mobile node and the next-hop mobile node The encounter frequency and proximity are determined; the current mobile node transmits the data to be forwarded to the next-hop mobile node. Therefore, the embodiment of the present invention improves the data forwarding performance, so that the Internet of Things has the effects of high data delivery rate, low delay, less average hops in message delivery, low message delivery failure rate, and low energy consumption in the 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...

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

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