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A high-dynamic mobile self-organizing network topology change sensing method

A mobile self-organization and topology change technology, applied in the direction of network topology, data exchange network, digital transmission system, etc., can solve the problem that the network topology change cannot be accurately reflected, and achieve the effect of accurate description

Active Publication Date: 2019-05-10
NAT SPACE SCI CENT CAS
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  • Abstract
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Problems solved by technology

The mobility metrics proposed so far are limited to describing a certain mobility feature during the node movement process, and cannot accurately reflect the network topology changes.

Method used

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  • A high-dynamic mobile self-organizing network topology change sensing method
  • A high-dynamic mobile self-organizing network topology change sensing method
  • A high-dynamic mobile self-organizing network topology change sensing method

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Embodiment Construction

[0057] The present invention will be further described now in conjunction with accompanying drawing.

[0058] The present invention provides a topology change sensing method for highly dynamic mobile ad-hoc networks, including: calculating the distance change degree, movement direction change degree and relative speed change between node i in the network and one-hop neighbor node j at the sensing time t degree; based on the above three parameters, respectively define the degree of topology change between mobile node i and its one-hop neighbor node j in the network, the degree of topology change between node i and all neighbor nodes within one hop, and the perception time t of the whole network The instantaneous topology change degree and the average topology change degree of the whole network during the network lifetime.

[0059] Such as figure 1 As shown, the present invention proposes a highly dynamic mobile ad hoc network topology change sensing method, comprising the foll...

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Abstract

The invention discloses a topology change sensing method for a wireless mobile ad hoc network. The method comprises the following steps: acquiring all one-hop neighbor nodes from neighbor nodes of a node i according to an effective transmission range of the node, Wherein the node i is any node in the network; Recording and updating information of all one-hop neighbor nodes in the neighbor node information list of the node i; Based on the neighbor node information list, sequentially calculating the topology change degree between the nodes, the topology change degree between the node i and all neighbors, the whole network instantaneous topology change degree and the whole network average topology change degree; In this way, the topological change condition between the nodes of the network isobtained. The method provided by the invention is suitable for complex task scenes and mobile scenes in a high-dynamic mobile ad hoc network, and the nodes can rapidly sense surrounding topology change conditions in the complex scenes; And realizing network local topology change perception and whole network topology change perception by the nodes.

Description

technical field [0001] The invention relates to the field of mobile ad hoc networks, in particular to a method for sensing topology changes in highly dynamic mobile organization networks. Background technique [0002] Node mobility and mobility models are important research branches of mobile ad hoc networks. The mobility model is an effective tool for abstracting the node movement in the real world into a mathematical model and assisting MANET network research. Mobility metric is a measurement standard that defines and describes the characteristics of mobility during node movement, and is divided into direct metric and indirect metric. Some mobility models and mobility metrics have been proposed (reference [1]: Radhika Ranjan Roy. (2011). Handbook of Mobile Ad Hoc Networks for Mobility Models. Springer. New York Dordrecht Heidelberg London). [0003] The particularity of the highly dynamic mobile ad hoc network lies in its high node mobility and frequent network topology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/18H04L12/24
Inventor 洪洁张德海
Owner NAT SPACE SCI CENT CAS
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