Network performance optimization method and apparatus based on adaptive compensation coding

A technology of adaptive compensation and compensation coding, applied in the field of communication, to achieve the effects of easy deployment and implementation, improvement of transmission performance, and reduction of timeout occurrence

Inactive Publication Date: 2016-10-12
INST OF INFORMATION ENG CAS
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Problems solved by technology

[0008] However, since the redundancy of Corrective is fixed, it cannot perform effective packet loss recovery for mor

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  • Network performance optimization method and apparatus based on adaptive compensation coding
  • Network performance optimization method and apparatus based on adaptive compensation coding
  • Network performance optimization method and apparatus based on adaptive compensation coding

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Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0060] There are two situations that lead to timeout in the TCP transmission model: ① most packets are lost in a congestion window, so that there are less than three repeated ACKs to trigger fast retransmission; Packets are lost. The following first and second embodiments of the present invention respectively perform network performance optimizat...

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Abstract

The invention provides a network performance optimization method and apparatus based on adaptive compensation coding. The method comprises the steps of: by a sending end, increasing a preset length of head information bits for data packets to be sent in a TCP (Transmission Control Protocol) layer, wherein the increased head information bits include coded information fields; and for a congestion window unit, when the sending end detects that a current timeout probability exceeds a preset threshold according to a current link loss rate, by the sending end, coding w1 original data packets in a current congestion window to generate C1 compensation coding packets and sending the C1 processed compensation coding packets to a receiving end, wherein C1 is determined according to the current timeout probability and an Lyapunov optimization frame model. According to the network performance optimization method and apparatus provided by the invention, active coding compensation can be generated according to a real-time network environment, the timeout probability of a TCP stream is reduced, hardware equipment such as a switch, a network interface and the like does not need to be modified, and the network performance optimization method and apparatus is easy to deploy and implement.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a network performance optimization method and device based on adaptive compensation coding. Background technique [0002] As an infrastructure network for cloud computing and Internet services, data centers provide a large number of centralized computing and storage resources. The data center network is a large-scale network with high bandwidth (Gbps level) and low latency (millisecond level). Most of its applications are cloud computing and Internet service applications with strict latency requirements. Data flows in a data center network are usually divided into two categories: delay-sensitive short flows and throughput-sensitive long flows. For delay-sensitive application services in the data center, the delay performance will greatly affect the enterprise's revenue. Research by Amazon shows that for every hundred milliseconds of delay in stream completion, th...

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Application Information

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IPC IPC(8): H04L12/801H04L12/807H04L12/815H04L12/823H04L12/855H04L47/22H04L47/2466H04L47/27H04L47/32
CPCH04L47/12H04L47/193H04L47/225H04L47/2466H04L47/27H04L47/323
Inventor 孙继燕张棪唐鼎张舒黎陈鑫
Owner INST OF INFORMATION ENG CAS
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