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An addressing method and device applied to aeronautical communication network

An aeronautical communication and addressing technology, which is applied in the field of aeronautical communication, can solve problems such as network congestion, occupation of network resources, and increase in average communication overhead, and achieve the effects of improving overall performance, saving network resources, and reducing the number of transmissions

Active Publication Date: 2015-08-12
大唐联诚信息系统技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of a large-scale aviation communication network with many nodes, when the AODV addressing method is used for node addressing, since the status of each network node is "equal" and the function is the same, each node handles it in the same way (forwarding) In this way, the number of routing control packets transmitted in the network increases sharply in a short period of time, the network is overloaded, and even network congestion occurs. At the same time, the control messages transmitted in the network occupy a large amount of network resources. As a result, the resource utilization rate of normal business messages between other nodes is reduced, resulting in a significant increase in the average cost of inter-node communication, and the overall performance of the AODV addressing method is significantly reduced

Method used

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  • An addressing method and device applied to aeronautical communication network
  • An addressing method and device applied to aeronautical communication network
  • An addressing method and device applied to aeronautical communication network

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Experimental program
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Embodiment 1

[0038] The basis for realizing data communication between nodes in the aviation communication network is to establish data links between nodes, and the process of establishing node links is the process of node network addressing. AODV addressing method, as a passive planar node addressing method, has been widely used in the field of aviation communication. The AODV addressing message includes three basic routing control packets: a routing request packet (RREQ), a routing response packet (RREP) and a routing error packet (RERR). The routing request packet RREQ is an addressing request sent by the source node. The addressing request carries the address information of the destination node, and it is sent by "broadcasting" to the adjacent nodes of the source node. Routing Reply Packet (RREP) is a reply message sent back to the source node after the destination node receives the addressing request from the source node. The reply message can reach the source node through the origina...

Embodiment 2

[0051] Although the nodes in the aviation communication network do not maintain the routing information to each other node, the nodes store the information of their adjacent nodes, and this information will be updated every time the network is established. After a node that receives an addressing request message compares and matches its own node address with the destination node address, although its own address may be different from the destination node, the node may store the address of the destination node, which is unnecessary at this time Forward the addressing request message to the destination node to judge the address, and the node can immediately return the response message that the destination node has been addressed to the source node, which can reduce the time overhead of addressing and help improve the AODV addressing method overall performance. Still another embodiment of the present invention can be constructed through the above description. See attached imag...

Embodiment 3

[0054] The foregoing two embodiments perform operations of forwarding or not forwarding the addressing request message according to the type of the node. Node types are divided into two types according to their functions: forwarding nodes and non-forwarding nodes. Forwarding nodes can forward received addressing request messages, and non-forwarding nodes do not forward addressing messages. The node type is pre-determined according to the preset rules. For example, some nodes can be artificially designated as forwarding nodes according to the actual situation. However, the pre-specified node type often cannot adapt to the dynamic characteristics of the aviation network. The present invention preferably implements the construction of the node type of the network node in the following manner, thus constituting another embodiment of the present invention. See attached Figure 4 , the steps to determine the node type in the network include:

[0055] Step S301: Obtain the connecti...

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PUM

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Abstract

The invention provides an addressing method applied to an aeronautical communication network. The addressing method comprises the following steps of: broadcasting an addressing request by a source node; extracting address information of a destination node by a node receiving the addressing request, and matching the extracted address information with the address of the node; if the extracted address information is same as the address of the node, transmitting back a response message about that the destination node is addressed to the source node; if the extracted address information is not same as the address of the node, judging the type of the node; if the node is a forwarding type node, broadcasting the addressing request, and returning back to the step of extracting the destination node address; and if the node is not the forwarding type node, refusing to broadcast the addressing request. The invention further provides an addressing device applied to the aeronautical communication network. In comparison with the prior art, the method and the device selectively do the work of forwarding and broadcasting the addressing request, so that the amount of transmitted control messages in the network is reduced, the average overhead of communication between the nodes is lowered, and the integral performance of the AODV (Ad Hoc On-demand Distance Vector) addressing method is improved.

Description

technical field [0001] The invention relates to the field of aeronautical communication, in particular to an addressing method and device applied to an aeronautical communication network. Background technique [0002] Aviation communication is a kind of flight support business that uses telecommunication equipment to communicate between aviation departments to transmit aircraft flight dynamics, air traffic control instructions, meteorological information and air transportation business information. The communication network composed of these telecommunication equipment for data communication including the aircraft itself is called the aviation communication network. Each terminal on the communication network is a node, and the nodes are connected wirelessly. Due to the limited wireless resources, the two Between two non-directly adjacent nodes, the intermediate nodes on the network are usually used to carry out packet forwarding to realize data communication, and the premise...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/28H04W48/10
Inventor 迟世杰龚志红周琳董俊花窦宏浩汤宏伟乔元新
Owner 大唐联诚信息系统技术有限公司