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Emergency communication-based AODV route stability algorithm improvement method

A technology of emergency communication and stability, applied in wireless communication, sustainable communication technology, advanced technology, etc. consumption effect

Inactive Publication Date: 2015-08-26
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the above methods still need to be further improved to solve the problem of low stability of the AODV routing protocol in the emergency system.

Method used

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  • Emergency communication-based AODV route stability algorithm improvement method
  • Emergency communication-based AODV route stability algorithm improvement method
  • Emergency communication-based AODV route stability algorithm improvement method

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Embodiment Construction

[0036] The stable route finding of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the stable route finding is only for illustrating the present invention, not for limiting the protection scope of the present invention.

[0037] figure 1 To improve the HELLO message format, figure 2 To improve the RREQ message format, image 3 It is the realization flowchart of the present invention, Figure 4It is the initial distribution model of mobile nodes in the Ad Hoc network. The specific scenario of this embodiment is a small-to-medium scale emergency scenario. Nodes in the network do not need to move frequently and have the characteristics of mobile deployment. It is set to distribute 50 mobile nodes within the range of 1000m×1000m. The communication range of each node is 250m, the initial positions of the nodes are randomly distributed, and then the nodes are in a state of random movement, and the...

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Abstract

The invention discloses an emergency communication-based AODV route stability algorithm improvement method. The method relates to the measurement of the reference value of link stability in an AODV protocol and route finding according to the link stability. The method includes the following steps that: link stability is calculated according to the time intervals of received HELLO messages; the link stability of a next-hop node is added into an RREQ message; all available routes are searched in a route hop count permissible range; and a route with maximum routing stability is selected to reply a RREP message to a source node. With the emergency communication-based AODV route stability algorithm improvement method of the technical scheme of the invention adopted, effective connection time of the routes of a Hoc Ad network can be improved, and the power consumption of network nodes can be reduced, and stable communication service quality can be achieved.

Description

technical field [0001] The invention relates to the application of wireless self-organizing network (Ad Hoc) in the field of wireless mobile communication, in particular to an improved algorithm of the routing protocol in the Ad Hoc network—AODV routing protocol. Background technique [0002] As a wireless mobile communication network, the Ad Hoc network has the characteristics needed for emergency rescue: no fixed infrastructure is needed, and the network is convenient; it can be quickly and effectively networked; the status of nodes in the network is equal, and it has strong invulnerability and robustness sex. Therefore, in the existing emergency communication system, deploying the Ad Hoc network can solve the emergency rescue problem to a certain extent. Moreover, through the research on the routing protocol of the Ad Hoc network, the networking of the network can be further optimized and a better data transmission scheme can be found. [0003] Ad Hoc routing protocols ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/12H04W40/08
CPCY02D30/70
Inventor 余翔易丹丹王诗言
Owner DATANG MOBILE COMM EQUIP CO LTD
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