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A relay multi-path traffic assignment method for minimizing transmission delay

A transmission delay and traffic distribution technology, applied in the field of network communication, can solve problems such as transmission performance degradation and transmission impact

Active Publication Date: 2018-12-11
ZHEJIANG UNIV
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  • Description
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Problems solved by technology

[0005] However, when traffic is allocated to non-independent paths, the allocated traffic will affect the transmission of other sub-flows on the shared link, and traffic allocation in the original way will cause transmission performance degradation

Method used

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  • A relay multi-path traffic assignment method for minimizing transmission delay
  • A relay multi-path traffic assignment method for minimizing transmission delay
  • A relay multi-path traffic assignment method for minimizing transmission delay

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with accompanying drawing and example, and method flow process is as follows: figure 1 shown.

[0045] The present invention takes a converging node as an example to illustrate the relay multi-path traffic distribution method. The multi-path transmission network topology is as follows figure 2 shown. There is a sink node c between the source node s and the destination node d. The transmission delay of each link is set to 10ms, and the bottleneck link e′ 11 ,e' 21 ,e' 31 The available bandwidth of the link is set to 6Mbps, 4Mbps and 5Mbps respectively, and the packet loss rate is set to 0.1%. The available bandwidth of other links is set to 10Mbps, and the packet loss rate is set to 0.

[0046] 1. Information collection. Monitor network traffic, collect and estimate link information; generate a set of paths from the source node through the sink node to the destination node based on the ...

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Abstract

The invention discloses a relay multi-path flow distribution method for minimizing transmission delay. The traditional traffic assignment method directly distributes the end-to-end traffic to the network sub-stream, which causes the performance degradation of transmission delay. The method of the invention splits paths according to a sink node under the condition that paths are not independent, and performs relay multi-path flow distribution. The method firstly collects information, splits the paths, and then carries out network path modeling, quality evaluation and transmission traffic assignment, calculates the queue delay of the paths, solves the traffic assignment with the minimum delay, couples the traffic assignment results, and minimizes the average transmission delay of the data packets arriving at the destination node. From the viewpoint of improving the performance of the live broadcast time delay, the method of the invention considers the situation that a sink node exists inthe multipath transmission, monitors the link information in real time, carries out the relay multipath flow distribution to obtain the minimum transmission time delay, and avoids the transmission performance degradation caused by the competition of the sub-streams for the shared link resources in the traditional flow distribution method.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a relay multi-path flow distribution method for minimizing transmission time delay. Background technique [0002] With the development of network technology and the continuous emergence of various new media and self-media, the video streaming industry has made great progress, and the industry has higher and higher requirements for live broadcast delay and interactivity. Interactive live broadcast technology is already a standard configuration in the live broadcast industry. Under normal circumstances, the delay is less than 800 milliseconds to be able to do some relatively high-frequency interaction in the live broadcast, such as talk shows and live connections. If it is increased to 400 milliseconds, there will be enough margin to resist network fluctuations and realize interactive live broadcast. Therefore, how to better improve network delay perform...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/707H04L12/721H04L12/751H04L12/801H04L45/02H04L45/24
CPCH04L43/08H04L43/0829H04L43/0852H04L43/0876H04L45/02H04L45/123H04L45/24H04L47/10
Inventor 谢磊陈惠芳傅林捷
Owner ZHEJIANG UNIV
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