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Adaptive clustering and cluster forwarding method based on traffic flow theory

A forwarding method and self-adaptive technology, which can be applied in the directions of location-based services, services based on specific environments, and communications between vehicles and infrastructure. The effect of saving channel resources and node costs, reducing scale, and increasing data transmission efficiency

Active Publication Date: 2019-03-26
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an adaptive clustering and cluster forwarding method based on the traffic flow theory. Less Adaptive Problems

Method used

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  • Adaptive clustering and cluster forwarding method based on traffic flow theory
  • Adaptive clustering and cluster forwarding method based on traffic flow theory
  • Adaptive clustering and cluster forwarding method based on traffic flow theory

Examples

Experimental program
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Embodiment 1

[0045] Such as figure 1 As shown, this embodiment provides an adaptive clustering method based on traffic flow theory, including:

[0046] Step 1. Choose a section of road as the current road, and divide the vehicles on the current road into multiple clusters, including:

[0047] Step 11. Choose a vehicle node in the current road as the current vehicle node A. If there is no vehicle node driving in the same direction as the current vehicle node A within the distance d in front of the current vehicle node A, and the distance d behind the current vehicle node A If there is a vehicle node traveling in the same direction as the current vehicle node A, the current vehicle node A is the cluster head; where d is the distance between clusters.

[0048] In this embodiment, if it is determined that the current node A is the cluster head, the cluster head node flag FF of the current node A needs to be set to 1.

[0049] Step 12. Choose a vehicle node on the current road as the current vehicle n...

Embodiment 2

[0074] Such as figure 2 This embodiment provides an adaptive cluster forwarding method based on traffic flow theory on the basis of embodiment 1, including the following steps:

[0075] According to the clustering method described in Embodiment 1, the vehicle nodes on the current road are divided into multiple clusters;

[0076] Choose a vehicle on the current road as the requesting vehicle node, and suppose that the requesting vehicle node generates a message and needs to forward the message to the destination node;

[0077] If the destination node and the source node belong to the same cluster, the source node forwards the message to the destination node;

[0078] If the destination node and the source node do not belong to the same cluster, and the routing information of the cluster head of the cluster where the source node is located contains the routing information of the cluster head of the cluster where the destination node is located, the message is sent according to the clust...

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Abstract

The present invention provides an adaptive clustering and cluster forwarding method based on traffic flow theory, wherein the adaptive clustering method includes: step 1, select a section of road as the current road, and divide the vehicles on the current road into multiple cluster; step 2, update each cluster on the current road every preset time T. Through the process of dynamic clustering and cluster head selection, the present invention collects and distributes vehicle information in the cluster through the cluster head, adopts a hierarchical routing transmission method, reduces the scale of the network, saves channel resources and node costs, and increases data transmission efficiency .

Description

Technical field [0001] The invention belongs to the technical field of vehicle self-organizing data network data transmission, and specifically relates to an adaptive clustering and cluster-type forwarding method based on traffic flow theory. Background technique [0002] With the continuous progress and development of the information industry, data communication has penetrated into all levels and links of the society and has a profound impact on our lives. Among them, the vehicular self-organizing network (VANET) for the purpose of achieving communication between vehicles is one. A typical example. The transmission of the vehicle ad hoc network can be roughly divided into three types: topology-based routing protocols, location-based routing protocols, and cluster-based routing protocols. As a form of cluster routing protocol, the essence of clustering algorithm is to establish a virtual combination according to the clustering algorithm. Each cluster needs a cluster head to mana...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/44H04W40/20H04W40/24H04L12/751H04L12/733H04L12/715H04W4/02H04L45/02H04L45/122
CPCH04L45/02H04L45/126H04L45/46H04W4/44H04W40/20H04W40/248H04W4/023H04W4/027H04W4/026
Inventor 段宗涛朱依水杜锋王路阳樊娜董鸣
Owner CHANGAN UNIV