Spectrum allocation method and system

A spectrum allocation and spectrum technology, applied in the field of elastic optical network, can solve the problems of increasing the complexity of business bearer, reducing the availability of spectrum resources, increasing network costs, etc., to achieve the effect of improving spectrum availability, reducing the generation of spectrum fragments, and reducing consumption

Active Publication Date: 2018-02-09
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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Problems solved by technology

However, with the continuous emergence of emerging services such as big data and cloud computing, the services carried by elastic optical networks are characterized by multiple types, multiple rates, and multiple constraints, which greatly increases the complexity of service carrying.
[0003] Moreover, with the dynamic demolition and construction of a large number of small-grained services, a large number of spectrum fragments will be generated in the

Method used

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  • Spectrum allocation method and system
  • Spectrum allocation method and system
  • Spectrum allocation method and system

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Embodiment ( 2

[0078] A spectrum allocation system, the system comprising:

[0079] The first building module is used to build a small-grained service group based on the source node and the sink node of the service;

[0080] The second building module is configured to construct a continuous spectrum plane for the small granularity service group, and allocate spectrum resources according to the continuous spectrum plane.

[0081] The first building block includes: a first judgment unit and a first calculation unit;

[0082] The first judging unit is configured to judge whether all services in the small-grained service are stored in the same data center, and whether the shortest distance between users requesting the small-grained service is less than a preset threshold;

[0083] The first calculation unit is configured to calculate the distance of small-grained services with the same source node.

[0084] The second building block includes: a second computing unit, a building unit, a second ...

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Abstract

The invention provides a spectrum allocation method and system. The spectrum allocation method comprises the steps of: based on a source node and sink nodes of services, constructing a small-particle-size service group; constructing a continuous spectrum plane for the small-particle-size service group; and according to the continuous spectrum plane, allocating spectrum resources. According to theinvention, the small-particle-size service group is constructed by carrying out classification on the services, the services with path similarity are partitioned into the same group to be subjected touniform routing and spectrum allocation so as to reduce complexity of service bearing, and continuous spectrum allocation is carried out on the basis of the small-particle-size service group so as toeffectively reduce generation of spectrum fragments and improve spectrum availability of an elastic optical network.

Description

technical field [0001] The invention relates to the field of elastic optical networks, in particular to a frequency spectrum allocation method. Background technique [0002] Today, with the rapid development of society, industries such as the Internet, cloud computing, and big data have developed rapidly. Elastic Optical Network (EON), because it supports non-blocking cross-connection and add / drop of optical nodes, And the bandwidth of each optical path can be adaptively matched according to the transmission rate of the service, which will gradually become the mainstream transmission system of the next generation optical network. As the most basic bearer network, elastic optical network is widely used in data center networking, air-space-ground integrated networking, mobile Internet and other fields. Compared with the traditional fixed-grid optical network, the elastic optical network can perform adaptive spectrum allocation according to the service rate, which greatly impr...

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Application Information

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IPC IPC(8): H04L5/00H04L1/00
CPCH04L1/0003H04L5/0039
Inventor 张小建于鹏飞吴鹏黄善国李新余勇冯谷曹婉恬
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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