Routing method for internet of vehicles based on user activity area model

A user activity and area model technology, applied in electrical components, wireless communication, etc., can solve problems such as endangering the personal safety of users, unfavorable message packet forwarding, and low probability

Active Publication Date: 2016-07-20
CHONGQING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

The former method finds a single node in the network. This method does not consider the problem of message packet community in the process of forwarding messages, especially when the destination node is only active in a small area of ​​the network, the message packet encounters The probability of the destination node is low, so it is not con...

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  • Routing method for internet of vehicles based on user activity area model
  • Routing method for internet of vehicles based on user activity area model
  • Routing method for internet of vehicles based on user activity area model

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, the present invention will be further described:

[0036] Such as figure 1 Shown, before detailed description, at first analyze main thought of the present invention, concrete thought is as figure 1 As shown in the figure, the dark area in the figure indicates the area frequently visited by the destination node. Through hotspots, the area frequently visited by the destination node is discovered, and then the message packet is forwarded to the sending area. Specific methods include:

[0037] Step 1: The node establishes a neighbor list through periodic HELLO auxiliary messages, obtains the social relationship owned by each object in the network - encounter frequency (f), encounter time (u), similarity (s), and determines the destination node to visit each hotspot area The probability function P=F(f,u,s); the probability function P=F(f,u,s) indicates the possibility of the destination node appearing in the hotspot area, an...

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Abstract

The invention provides a routing method for an internet of vehicles based on a user activity area model. The routing method for the internet of vehicles based on the user activity area model is provided to overcome the problem in the current internet of vehicles that user motion has community character, thus a message packet is difficult to transmit to a destination mode to result in a low delivery rate. The method comprises the following steps: (1) exploring the most possible activity area of a user according to the community character of node activity in a social network (SNs:Social Networks); (2) forwarding a message packet to the most possible occurrence area of the destination node by adopting the principle of proximity; and (3) waiting for the meeting the destination node and a hotspot carrying the message packet to deliver the message packet. The purpose is to change the traditional mode that the message packet is forwarded to a signal node into a mode that the message packet is forwarded to the user activity area, so as to greatly improve the delivery rate of the message packet.

Description

technical field [0001] The invention belongs to the technical field of the wireless network of the Internet of Vehicles, in particular to a routing method of the Internet of Vehicles based on a user activity area model. Background technique [0002] The Vehicular AdHoc Networks (Vehicle AdHocNetworks) is based on the intra-vehicle network, the inter-vehicle network and the vehicle mobile Internet. The system network for wireless communication and information exchange is an integrated network that can realize intelligent traffic management, dynamic information service and intelligent vehicle control. The Internet of Vehicles based on the theory of social networks (Mobilesocialnetworks) is a trend in the routing research of Internet of Vehicles. Social networks are composed of mobile users who carry wireless communication devices and share information through online social network services (such as Facebook). It is of great significance to improve the routing performance by s...

Claims

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Application Information

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IPC IPC(8): H04W40/20
CPCH04W40/20
Inventor 唐伦肖晶董春阳陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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