Delay constraint routing method and device based on airport information network

An information network and time-delay technology, applied in the field of communication, can solve problems such as large data forwarding time delay

Inactive Publication Date: 2018-11-23
BEIHANG UNIV
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Problems solved by technology

[0005] However, due to the large coverage of the aerostat node in the airport information network, there are many opportunities to connect with other nodes and the connection is ...

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  • Delay constraint routing method and device based on airport information network
  • Delay constraint routing method and device based on airport information network
  • Delay constraint routing method and device based on airport information network

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Embodiment Construction

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0072] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than...

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Abstract

The invention provides a delay constraint routing method and a delay constraint routing device based on an airport information network. The method comprises the steps of determining a first set according to connection information or distance information between each node in a network, wherein the first set comprises routing information of at least one backup path, and the routing information comprises a backup node corresponding to the backup path; aiming at each backup path in the first set, acquiring a delay factor corresponding to the backup path according to the comprehensive delay corresponding to the backup path, and a packet loss probability of a link between the current node and the backup node; and using the standby node corresponding to the standby path with the minimum delay factor in the first set as the next hop node of the current node, and sending data to be sent of the current node to the standby node. When the standby node is selected, the comprehensive delay corresponding to the backup path, and the packet loss probability of the link between the current node and the backup node are considered, so that the condition that the finally selected path is the path withrelatively small delay and stable link can be ensured, and thus the delivery rate and end-to-end delay of the network are improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a time-delay-constrained routing method and device based on an airport information network. Background technique [0002] In some specific network environments, the phenomenon of network disconnection often occurs, resulting in the inability to ensure end-to-end data transmission. This type of network is called a delay tolerant network (Delay Tolerant Networks, DTN). DTN networks usually have the characteristics of high dynamics. For example, the airport information network is a typical DTN network, which is used for real-time monitoring and early warning of trains. [0003] The airport information network includes three types of nodes: aerostats, drones, and ground centers. Among them, the ground center and the aerostat are static nodes, the ground center is the control center set on the ground, and the aerostat can be set in the air at an altitude of 20km. The UAV node...

Claims

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Application Information

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IPC IPC(8): H04L12/707H04L12/721H04L12/727H04L12/26H04L45/24H04L45/121
CPCH04L43/0852H04L45/121H04L45/123H04L45/22
Inventor 张涛刘雪飞张咏
Owner BEIHANG UNIV
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