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Self-adaptive congestion control method for dynamically adjusting gain coefficient

A gain coefficient and congestion control technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as low transmission rate and unstable communication environment, achieve high transmission rate and reduce the possibility of congestion , the effect of alleviating network pressure

Active Publication Date: 2020-09-18
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides an adaptive congestion control method that dynamically adjusts the gain coefficient, which is used to solve the problem of the smooth coefficient of up to 6 small periods in the prior art when detecting the maximum bandwidth. The technical problem of low transmission rate when the communication environment is unstable and the delay jitter is severe

Method used

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  • Self-adaptive congestion control method for dynamically adjusting gain coefficient
  • Self-adaptive congestion control method for dynamically adjusting gain coefficient
  • Self-adaptive congestion control method for dynamically adjusting gain coefficient

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Embodiment 1

[0041] An adaptive congestion control method that dynamically adjusts the gain coefficient, such as figure 1 shown, including the following steps:

[0042] S1. Initialize the parameter information of the network, wherein the parameter information of the network includes the minimum round-trip delay;

[0043] S2. The sender sends data packets, so that the size of the congestion window increases exponentially until the network bandwidth is filled;

[0044] Specifically, the following steps are included:

[0045] S21. The sending end sends the data packet at the sending rate pacing_rate;

[0046] S22. After sending, after waiting for the minimum round-trip delay time, the sending end sends data packets at the sending rate pacing_rate=p_g1*pacing_rate; in this embodiment, p_g1 is the sending rate gain coefficient pacing_gain, and in this embodiment, p_g1=2 / ln12.

[0047] S23. Repeat step S22 until the network bandwidth is filled; specifically, each time the sender sends a rou...

Embodiment 2

[0083] A storage medium, when the computer reads the instructions, the computer is enabled to execute the adaptive congestion control method for dynamically adjusting gain coefficients provided in Embodiment 1 of the present invention.

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Abstract

The invention discloses a self-adaptive congestion control method for dynamically adjusting a gain coefficient. A target value reflecting a network condition is calculated by stages; the congestion condition of a current network is determined according to the target value of the network condition reflected in each stage, and the sending rate gain coefficient at a subsequent moment in the network is adaptively adjusted based on the congestion condition of the current network, so that the sending rate can be adaptively adjusted according to the change of the network, and the transmission rate ofthe network is made relatively high. Besides, the ratio of the mean value to the variance is calculated to determine whether the current network is a wired network or a wireless network. According tothe method, adaptive switching in a wired or wireless network environment can be realized, and different minimum round-trip delays are switched according to different network environments to serve asreferences for measuring the network condition, so that the difference between the estimated congestion window value and the actual link capacity is relatively small, and the waste of network resources is avoided.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and more specifically relates to an adaptive congestion control method for dynamically adjusting gain coefficients. Background technique [0002] In recent years, due to the rapid development of Internet technology, network bandwidth and user scale have shown an explosive growth trend, and network services have also changed from a single text transmission and web browsing to the current audio and video transmission, game video, interstate communication, etc. In particular, the rise of the mobile Internet has pushed the development of the Internet to its peak. The development of the next generation of Internet traffic tends to be high-bandwidth and high-latency. These changes also put forward higher requirements for network traffic transmission. The control method is of great significance. [0003] The traditional congestion control algorithm regards packet loss as the condition fo...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W28/22
CPCH04W28/0289H04W28/22
Inventor 韩涛占轩钟祎葛晓虎谢琳李佳伶
Owner HUAZHONG UNIV OF SCI & TECH
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