Handover-based cluster routing method under environment of vehicular Ad hoc network

A vehicle-mounted self-organization and handover technology, which is applied in the routing field of vehicle-mounted self-organizing networks to achieve the effects of good routing overhead, efficient information transmission, and adaptation to dynamic changes in node density and network topology.

Inactive Publication Date: 2012-05-16
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the existing routing methods, fully consider the characteristics of the vehicular ad hoc network, and propose a grouping routing method based on handover under the vehicular ad hoc network environment

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  • Handover-based cluster routing method under environment of vehicular Ad hoc network
  • Handover-based cluster routing method under environment of vehicular Ad hoc network
  • Handover-based cluster routing method under environment of vehicular Ad hoc network

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Embodiment Construction

[0017] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0018] The present invention is a grouping routing method based on handover in a vehicle-mounted ad hoc network environment, and the flow is as follows: figure 1 shown, including the following steps:

[0019] Step 1: Take the existing transportation infrastructure in the urban scene as the group leader, and divide the road network into multiple groups;

[0020] Taking the existing transportation infrastructure in the urban scene as the group leader, the road network is divided into multiple groups, and each group has two kinds of nodes: members in the group and group leaders, such as figure 2 As shown in the figure, a and b in the figure are the members of the group, E, F, G, and H are the group leaders, and the group leaders of all groups form a backbone network.

[0021] The grouping in the invention covers all the roads in the whole road network...

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Abstract

The invention discloses a handover-based cluster routing method under the environment of a vehicular Ad hoc network, which includes the following steps: step 1: with existing traffic infrastructures in an urban scene as cluster heads, a road network is divided into a plurality of clusters; step 2: a source node i acquires the distance Dig between the source node A and a destination node j; step 3: the source node i sends data packets to a cluster head X; step 4: the cluster head X determines a cluster head Y of the destination node j; step 5: the cluster head X of the cluster of the source node i sends the data packets to the cluster head Y of the cluster of the destination node j via a backbone network; step 6: the cluster head Y of the cluster of the destination node j directly sends the data packets to the destination node j of the cluster thereof. The invention utilizes the existing traffic infrastructures to divide clusters, thus realizing high-efficient information transmission,and by adopting the handover method in a cellular network, the service quality of the communication between members in the cluster is increased.

Description

technical field [0001] The invention relates to a grouping routing method based on handover in a vehicle ad hoc network environment, belonging to the technical field of vehicle ad hoc network routing. Background technique [0002] Vehicle ad hoc network is a special type of mobile ad hoc network, which is specially used for wireless communication between vehicles and between vehicles and roadside nodes. As an integral part of "Intelligent Transportation System" and a specific application of mobile ad hoc network, related technologies of vehicular ad hoc network are getting more and more attention from academic and industrial fields. Compared with the general mobile ad hoc network, the vehicular ad hoc network has the following characteristics: (1) the vehicle nodes move fast, the network topology changes quickly, and the path life is short; (2) the distribution of vehicle nodes is limited by roads; (3) the vehicle nodes The movement of nodes is affected by road facilities a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/32H04W40/36
Inventor 王钢王铁成
Owner BEIHANG UNIV
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