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Routing and spectrum allocation method and device for data center optical network

A data center and spectrum allocation technology, applied in the field of optical network communication, to achieve the effect of low forward propagation complexity, high-speed and high-efficiency generation, and high-throughput

Active Publication Date: 2021-02-19
STATE GRID ELECTRIC POWER RES INST +4
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Problems solved by technology

[0006] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a routing and spectrum allocation method and device for data center optical networks, which are used to solve the problem of data centers based on flexible grids in elastic optical networks (EONs). Lattice routing and spectrum resource allocation (Routing and spectrum allocation, RSA) problem

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  • Routing and spectrum allocation method and device for data center optical network
  • Routing and spectrum allocation method and device for data center optical network
  • Routing and spectrum allocation method and device for data center optical network

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with specific examples.

[0040] The main research content of the present invention focuses on the static resource allocation problem of the elastic optical network between data centers, considers applying deep learning technology to the elastic optical network, and provides a new idea for solving the resource allocation problem. In view of the complexity of the RSA problem, the RSA problem is decomposed into two relatively simple sub-problems of routing allocation and spectrum allocation to be solved separately. Route allocation needs to select an appropriate route between source and sink nodes for service requests, and spectrum allocation needs to allocate appropriate spectrum resources for service requests on the selected path.

[0041] K fixed candidate paths are often used in route allocation, and there is no need for repeated calculations when using fixed routes. Spectrum resources on each link ...

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Abstract

The invention discloses a routing and spectrum allocation method and device for a data center optical network. The method comprises the following steps of: arranging each group of service traffic intoa service traffic matrix T; inputting the service flow matrix T into the trained n * (n-1) routing allocation neural network between the data centers to obtain the routing category of the service flow between the n * (n-1) data centers, with n being an integer; inputting the service traffic matrix T into the trained n * (n-1) spectrum allocation neural networks between the data centers to obtainthe spectrum category of the service traffic between the n * (n1) pairs of the data centers, with n being an integer; and integrating the routing category and the spectrum category of the service traffic between the data centers by n * (n-1). High-speed allocation of resources is realized while a certain resource utilization rate is ensured, the deep learning technology has outstanding performancein solving complex problems, the complex relationship between input and output can be autonomously learned through the strong learning ability of the neural network, the forward calculation complexity is low, the consumed time is short, and the efficiency is very high.

Description

technical field [0001] The invention relates to a data center optical network-oriented routing and spectrum allocation method and device, and belongs to the technical field of optical network communication. Background technique [0002] With the continuous development of the information society, people's demand for information services is increasing day by day, and a large number of high-traffic applications emerge as the times require, which poses a huge challenge to the allocation of optical layer network resources in data centers. Compared with the traditional wavelength division multiplexing (Wavelength Division Multiplexing, WDM) optical network using a fixed grid spectrum allocation method, the elastic optical network (EONs) based on optical orthogonal frequency division multiplexing (Optical Orthogonal Frequency Division Multiplexing, OOFDM) ), the spectrum resource has been further refined, and the frequency slot (Frequency Slot, FS) is used as the most basic unit of...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/729H04Q11/00H04L45/125
CPCH04L45/125H04Q11/0062H04Q2011/0086
Inventor 蔡万升罗威王巧巧李洋龚亮亮汪晓岩叶彬彬张影王宝海高亮姜元建殷伟俊王斌蒋政顾辉朱雪阳顾仁涛
Owner STATE GRID ELECTRIC POWER RES INST
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