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An improved aomdv routing method

A routing and purpose technology, applied in the field of improved AOMDV routing, can solve the problems of not being able to effectively use effective network information, not being able to obtain network topology information well, and reducing network robustness

Inactive Publication Date: 2016-06-08
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-path routing only obtains one path in the route discovery stage, and cannot obtain the topology information of the entire network well, so that it cannot effectively use the effective information of the network, which leads to a decrease in network robustness

Method used

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Embodiment Construction

[0020] An improved AOMDV routing method of the present invention will be specifically described below in conjunction with the accompanying drawings. Such as Figure 1-3 As shown, this method aims to keep paths independent as much as possible during multipath selection to ensure the lowest mutual interference. The method is realized by modifying the route finding process of the AODV protocol and establishing disjoint multipaths from the source node to the destination node. The source node maintains two routes to the destination node: one main route and one backup route. When the main route is disconnected, the backup route is enabled, and when the backup route is also disconnected, the route search is performed again. Its features include the following steps: establishing multiple routes, maintaining multiple routes, updating multiple routes, controlling errors in multiple routes and re-establishing multiple routes.

[0021] Multi-route establishment module: the source node ...

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Abstract

The invention relates to an improved AOMDV routing method which aims at achieving the purposes of maintaining independence of paths as much as possible in the process of carrying out multipath selection and ensuring the lowest interference between the paths. The improved AOMDV routing method includes the steps of modifying a path searching process to an ad hoc on-demand distance vector (AODV) protocol and building a plurality of node-disjoint paths from a source node to a destination node. Two routes can be maintained from the source node to the destination node, one route is a main route, and the other route is a spare route. When the main route is disconnected, the spare route is started. When the spare route is disconnected, route searching can be carried out again. The improved AOMDV routing method is characterized by including the steps of building multiple routes, maintaining the multiple routes, updating the multiple routes, carrying out error control on the multiple routes and rebuilding the multiple routes.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an improved AOMDV routing method. Background technique [0002] The traditional network wired routing method has slow convergence speed and high overhead, which is not suitable for wireless ad hoc networks. And now the wireless ad hoc network (AdHoc) is a rapidly developing wireless communication technology in the current wireless communication field. The AdHoc network has no fixed infrastructure, and the entire wireless network is composed of wireless terminals that can be moved arbitrarily, and can quickly form a network. In the wild or in an environment that is not suitable for establishing a fixed infrastructure, AdHoc can well complete the task of communication. Therefore, wireless AdHoc technology has attracted more and more attention in the civilian field, and has a very broad application prospect. [0003] In the most popular on-demand routing protocols, routing se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/04H04W40/34
Inventor 李旭冯其晶沈杰娜仁高娃李瑶
Owner BEIJING JIAOTONG UNIV
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