Cluster routing method under environment of vehicular Ad hoc network

A vehicle-mounted self-organization and network environment technology, which is applied in the field of self-organizing network routing to achieve the effects of alleviating traffic congestion, reducing impact, and reducing distribution time.

Inactive Publication Date: 2010-10-20
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above methods take into account the characteristics of the vehicular ad hoc network, their design is based on the idea of ​​traditional routing methods, and cannot well deal with the adverse effects of the high dynamics of the vehicular ad hoc network on vehicle communication in the urban environment.

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  • Cluster routing method under environment of vehicular Ad hoc network
  • Cluster routing method under environment of vehicular Ad hoc network
  • Cluster routing method under environment of vehicular Ad hoc network

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Embodiment Construction

[0031] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0032] The present invention is a grouping routing method in a vehicle-mounted self-organizing network environment, and the flow is as follows: figure 1 shown, including the following steps:

[0033] Step 1: Taking the existing transportation infrastructure in the urban scene as the group leader, divide the road network into multiple groups;

[0034] Taking the existing transportation infrastructure in the urban scene as the group leader, divide the road network into multiple groups, such as figure 2 As shown, there are two kinds of nodes in each group: members in the group and the group leader; the leaders of all groups form a backbone network.

[0035] Any member in the group is the source node A, and any other member in the group is the destination node B of the source node A. The source node A obtains its own location coordinates (x A ,y A ) ...

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Abstract

The invention discloses a 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 A acquires the distance DAB between the source node A and a destination node B; step 3: the source node A acquires a cluster head X of the cluster of the source node A; step 4: the cluster head X acquires the position coordinates of the destination node B and a cluster head Y of the cluster of the destination node B; step 5: the cluster head X of the cluster of the source node A sends data packets to the cluster head Y of the cluster of the destination node B via a backbone network; step 6: the cluster head Y of the cluster of the destination node B directly sends the data packets to the destination node B in the cluster thereof. The invention utilizes the existing traffic infrastructures to divide the network into clusters, and by adopting different communication modes in the clusters and between the clusters, the distribution time of traffic information is effectively shortened, so that the traffic jams of urban roads can be effectively reduced.

Description

technical field [0001] The invention relates to a grouping routing method in a vehicle-mounted ad hoc network environment, and belongs to the technical field of ad hoc network routing. Background technique [0002] In recent years, the frequent occurrence of traffic accidents, severe traffic congestion, and the comfort of the driving environment have attracted more and more attention. With the continuous maturity of the mobile ad hoc network technology, many researchers began to apply the mobile ad hoc network in the automotive environment to solve some problems faced by the current traffic, which is the vehicle ad hoc network. As a component of "Intelligent Transportation System" and a specific application of mobile ad hoc network, related technologies of vehicular ad hoc network have been paid attention to by developed countries such as the United States, Europe and Japan. [0003] Vehicle ad hoc network is a subclass of mobile ad hoc network, which is an ad hoc communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W84/18H04L29/08G08G1/00
Inventor 王钢王铁成
Owner BEIHANG UNIV
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