Adaptive route constructing method for wireless Ad Hoc network

A wireless self-organizing and adaptive technology, applied in network topology, wireless communication, data exchange network and other directions, can solve the problems of high cost of route rediscovery, increase data transmission delay, poor adaptability, etc., and improve routing adaptability. , improve adaptability, overcome the effect of delay

Inactive Publication Date: 2010-09-29
上海星地通通信科技有限公司
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Problems solved by technology

[0004] In order to overcome the defects of high route rediscovery cost, increased data transmission delay and poor adaptability of routes to network topology changes in existing wireless ad hoc networks, solve the problems of virtual node construction, update and virtual route instant assembly and configuration. problem, the present invention proposes a wireless ad hoc network routing construction method

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  • Adaptive route constructing method for wireless Ad Hoc network
  • Adaptive route constructing method for wireless Ad Hoc network
  • Adaptive route constructing method for wireless Ad Hoc network

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Embodiment Construction

[0029] A routing construction method of a wireless ad hoc network provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation examples.

[0030] figure 1 An overall flow chart showing the adaptive routing construction method in the virtual node-based wireless ad hoc network. The method described in this implementation example constructs virtual nodes based on the equivalence relationship of node reachability, and constructs virtual routes based on virtual nodes; assembles virtual routes on demand and obtains working routes in real time, so as to avoid damage caused by node failure and network structure changes. Negative impact of routing; at the same time, virtual nodes can be adaptively updated at any time after routing construction is completed, and virtual routing can be locally repaired.

[0031] see figure 1 , The method described in this implementation example includes two stages: 1. Cons...

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Abstract

The invention provides a router construction method in a wireless self-organizing network, which comprises: dividing a construction virtual node according to node reachability equivalence and constructing a virtual router from a source node to a target node based on the virtual node; in the process of transmitting data, movably choosing an available virtual node member to immediately configure the virtual router, adaptively updating the virtual node and partially restoring the virtual router. The method of the invention has the advantages of overcoming the shortcoming of an active protocol router that the cost is high, improving the adaptability of the router, overcoming delay of a protocol on demand caused by discovery of a router on demand, reducing rediscovery of a router caused by a fail node, overcoming problem produced by mixing protocol integrated router segment, and improving adaptability to a fail router segment node and network structure changes.

Description

technical field [0001] The present invention relates to the technical field of wireless ad hoc networks, more specifically, the present invention relates to a routing construction method in a wireless ad hoc network, in particular to an adaptive routing method that can be dynamically adjusted in a wireless ad hoc network. Background technique [0002] The wireless ad hoc network is composed of a group of dynamic nodes that do not need any hardware facilities. Because of its flexibility and strong scalability, it has broad application prospects in the fields of home network, emergency disaster relief and so on. Although the wireless ad hoc network itself has outstanding dynamics, in fact, this kind of network does not always work continuously and stably. Usually, many factors will cause the instability of the wireless ad hoc network. For example, the change of the node position will cause the network Changes in topology and node failure; node failure caused by network instabi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04W84/18H04L45/02
Inventor 李刚
Owner 上海星地通通信科技有限公司
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