Dynamic and static evaluation method for path quality of wireless network

A path quality and wireless network technology, applied in wireless communication, data exchange network, digital transmission system, etc., can solve the problems of not being able to calculate and update data transmission paths in real time, consuming network path resources, etc.

Active Publication Date: 2019-08-09
XIAN INSTITUE OF SPACE RADIO TECH
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AI Technical Summary

Problems solved by technology

The current dynamic state of the data transmission path cannot be calculated and updated in real time, requiring more network path resources

Method used

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  • Dynamic and static evaluation method for path quality of wireless network
  • Dynamic and static evaluation method for path quality of wireless network
  • Dynamic and static evaluation method for path quality of wireless network

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0046] The present invention provides a dynamic and static evaluation method for wireless network path quality. The method establishes a dynamic and static path quality parameter table based on network topology and link characteristics through a priori model or measurement of various path static quality parameters. When a service request arrives According to the different transmission quality requirements of the service, the corresponding path quality detection packet is sent along the path required by the service to complete the collection of dynamic path quality parameters. The destination node uses the time rolling window to analyze the interference change of the path, and adjusts the detection packet according to the analysis result The sending frequency, and optimize the dynamic and static path quality parameter table appropriately.

[0047...

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Abstract

The invention discloses a dynamic and static evaluation method for path quality of a wireless network, and relates to the field of data communication transmission. The method comprises the following steps: step 1, setting any path in nodes of N nodes corresponding to a network physical topology G as Pinode, wherein the path between the two nodes is P<j><channel>; step 2, obtaining a path quality parameter table; step 3, obtaining a preset path p, and sending the path delay parameter detection packet to a target node Vq along the preset path p; step 4, judging whether the dynamic path quality of the preset path p meets the service transmission quality requirement or not according to the service delay requirement thr; and step 5, updating and replacing the static quality parameter and the dynamic quality parameter in the path quality parameter table. According to the invention, the sending frequency of the detection packet is adjusted in real time, and optimization of the dynamic and static path quality parameter table is realized.

Description

technical field [0001] The invention relates to the field of data communication transmission, in particular to a dynamic and static evaluation method for wireless network path quality. Background technique [0002] At present, the commonly used path quality assessment methods can be generally divided into two categories: hardware-based link quality assessment and software-based link quality assessment. Hardware-based link quality estimation directly obtains relevant information from the hardware, such as RSSI (received signal strength indicator), LQI (link quality indicator), SNR (signal-to-noise ratio), etc. This type of method is simple and has low overhead, but it has high requirements on system hardware, is difficult to flexibly deploy, and cannot accurately reflect the state of the link within a period of time. Software-based link quality assessment methods generally detect link quality by periodically sending control packets, such as ETX (expected transmission count),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W40/12H04L12/24H04L12/721
CPCH04L41/12H04L45/124H04W40/02H04W40/12
Inventor 梁薇黎军周诠李静玲崔涛张怡
Owner XIAN INSTITUE OF SPACE RADIO TECH
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