Multi-domain optical network secure multicast wavelength distribution method and system

A wavelength allocation and secure multicast technology, applied in the field of optical networks, can solve problems such as difficult wavelength allocation schemes

Active Publication Date: 2018-07-06
ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Since these wavelength allocation methods process multiple multicast requests arriving at the same time one by one, it is difficult to obtain an o...

Method used

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  • Multi-domain optical network secure multicast wavelength distribution method and system
  • Multi-domain optical network secure multicast wavelength distribution method and system
  • Multi-domain optical network secure multicast wavelength distribution method and system

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Embodiment

[0075] Given an undirected weighted graph G=(V,E) of an optical network, W=(λ 1 ,λ 2 ,...,λ w ) represents the wavelength set of the entire optical network, Indicates the link (V i ,V j ) on the set of currently available wavelengths with 5 multicast requests {r i (s i ,D i )|i=1,2,…,5} come at the same time, in order to reduce the cost and computational complexity, assuming that the current optical network has no wavelength conversion condition, for all given k wavelength allocation requests, under the fixed routing condition Next, the target of the present embodiment method is: for 5 multicast trees T={T 1 , T 2 ,...,T 5}Allocate 5 wavelengths, and reduce the potential impact of crosstalk attacks as much as possible, so that the connection blocking rate is as low as possible, that is, the ICAPR value is the smallest.

[0076] On the basis that the crosstalk attack model has been established, the ICAPR matrix shown in matrix (1) is obtained by calculation according...

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Abstract

The invention discloses a multi-domain optical network secure multicast wavelength distribution method and system. The method comprises the following steps: introducing the concept of in-band crosstalk attack propagation radius ICAPR for quantitatively describing the degree of the worst case of the in-band crosstalk attack propagation of the optical network, and then translating a wavelength distribution problem requested by multiple multicasts into a classical assignment problem on this basis, and solving the problem through a Hungarian method. Through the distribution method disclosed by theinvention, the wavelength distribution scheme with high security can be acquired in the polynomial time, the connection blocking rate can be reduced, and the use ratio of the system wavelength resource is improved.

Description

technical field [0001] The invention belongs to the technical field of optical networks, and relates to a multi-domain optical network security multicast wavelength allocation method and system. Background technique [0002] At present, with the rapid development of Internet technology, the application of optical network is becoming more and more extensive, and its scale is also increasing. The intelligent optical network ASON with the characteristics of layered and domain structure has begun to be widely used. However, there are many weaknesses in the main components used in transparent optical networks, such as attenuation and nonlinear effects in optical fibers, especially the gain competition of optical amplifiers and crosstalk in switches. Causes the interruption of multiple connections, resulting in the loss or corruption of large amounts of data. Malicious users can take advantage of these vulnerabilities to create malicious physical layer attacks aimed at quality of...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04J14/02
CPCH04J14/0238H04J14/0257H04Q11/0062H04Q2011/0075H04Q2011/0086
Inventor 吴启武姜灵芝耿新元陈浩
Owner ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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