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A Scheduling Method for Multiple Variable Paths with Fixed Bandwidth in High-Performance Networks

A scheduling method and fixed bandwidth technology, applied in the field of computer networks, can solve problems such as inability to make full use of network bandwidth resources, inability to adapt to large-scale data transmission and higher real-time transmission requirements, etc., to increase transmission reliability, Avoid congestion and improve the effect of network service quality

Active Publication Date: 2020-09-04
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the bandwidth scheduling research on the dynamic change of available bandwidth is single-path scheduling strategy or fixed multi-path, which cannot make full use of network bandwidth resources, and cannot adapt to larger-scale data transmission and higher real-time transmission requirements.

Method used

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  • A Scheduling Method for Multiple Variable Paths with Fixed Bandwidth in High-Performance Networks
  • A Scheduling Method for Multiple Variable Paths with Fixed Bandwidth in High-Performance Networks
  • A Scheduling Method for Multiple Variable Paths with Fixed Bandwidth in High-Performance Networks

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Embodiment Construction

[0035] The present invention provides a scheduling method for multiple variable paths with fixed bandwidth in a high-performance network. The method selects the path set p with the earliest end time of data transmission according to the user request. 1 ={p 1 (P),...p 1 (i),...p 1 (Q)} and path set p 2 ={p 2 (P),...p 2 (i),...p 2 (Q)}, transfer the data with data size δ from the source node v s transmitted to the destination node v d , where p 1 (i) represents the path set p 1 The path under the ith time slot in , p 2 (i) represents the path set p 2 In the path under the i-th time slot, P represents the start time slot of data transmission, and Q represents the end time slot of data transmission. .

[0036] Topology graph G(V,E) of a high-performance network (HPN), where V represents the set of nodes in the high-performance network, E represents the set of links in the high-performance network, and the available bandwidth of the link changes in each time period . ...

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Abstract

The invention discloses a scheduling method for multiple variable paths with fixed bandwidth in a high-performance network. The use of multiple disjoint paths for parallel transmission can not only increase throughput, avoid congestion caused by excessive loads on certain links, but also enable When some nodes in one path fail, other paths are used for transmission to increase transmission reliability. Overall, the quality of network service is improved.

Description

technical field [0001] The invention belongs to the technical field of computer networks, and relates to a scheduling method for multiple variable paths with fixed bandwidths in a high-performance network. Background technique [0002] Massive data generated by various large-scale applications such as electronic scientific research, e-commerce, and social media are currently 10 12 、10 15 、10 18 The order of magnitude will be even higher in the future. These big data often need to be transmitted remotely to achieve remote operations. A high-performance network (High-Performance Networks, HPN) can provide a dedicated channel through bandwidth reservation, and is recognized as an effective solution. In HPN, the bandwidth scheduler as the central unit of the control plane can calculate the appropriate path for the user according to the network topology and the available bandwidth of different time slots and reserve the path for the user as a dedicated transmission channel. M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/709H04L12/917H04L12/801H04L45/243H04L47/76
CPCH04L45/24H04L47/12H04L47/76
Inventor 侯爱琴吴奇石房鼎益王涛张晓阳王永强
Owner NORTHWEST UNIV