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Sequential game-based multi-domain optical network multicast protection method

A sequential game and optical network technology, applied in the field of optical networks, can solve the problems of poor survivability of multi-domain optical networks, and achieve the effects of improved survivability, reduced redundancy, and less cost and resources

Active Publication Date: 2021-02-09
ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a multi-domain optical network multicast protection method based on sequential game to solve the technical problem of poor survivability of the multi-domain optical network in the prior art

Method used

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  • Sequential game-based multi-domain optical network multicast protection method
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  • Sequential game-based multi-domain optical network multicast protection method

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Embodiment

[0114] Complying with the above-mentioned technical solution, this embodiment provides a multi-domain optical network multicast protection method based on sequential game. In the dynamic multicast environment, this method shares the protection scheme for the multi-domain optical network formed by the proposed SGDMS method. To illustrate with an example, the communication network of three different units is regarded as three different autonomous domains. Figure 1(a) shows the structure G=(36,69) of the multi-domain optical network. The structure diagram after topology aggregation is shown in Figure 1 (b) shown. Suppose a temporary video conference is arranged between three units, and the start and end times of the conference are uncertain, R 1 ={2;5,8,13,25,35},R 2 ={5;8,13,27},R 3 ={7;14,17,29,33},R 4 = {22; 7, 30, 36} are four dynamic conference arrangements, which require ensuring smooth network and normal business operation during the entire conference. First, according...

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Abstract

The invention provides a sequential game-based multi-domain optical network multicast protection method, which comprises the following steps of: when a kth multicast request is reached in a multi-domain optical network, performing a sequential game with a multicast tree formed by unreleased multicast requests, performing a game with an obtained new multicast tree in the next stage, and by calculating a benefit function, finally, Nash equilibrium which enables the optical network link structure to be most reasonable and benefits to be highest is obtained, link resources are effectively allocated to the multicast work tree and the protection tree, and sharing protection benefits are maximized. Compared with a classic SSPP method and an HTASP method with a mixed topology, the SGDMS method provided by the invention has the advantages that the required cost and resources are less, the corresponding blocking rates under different multicast requests are obviously reduced, the cost required bya multi-domain optical network is greatly reduced, and the survival performance of the network is effectively improved.

Description

technical field [0001] The invention belongs to the field of optical networks, relates to multi-domain optical network multicast protection, in particular to a sequential game-based multi-domain optical network multicast protection method. Background technique [0002] With the continuous expansion of the optical network scale and the increasingly complex structure, the diverse business requirements put forward further requirements for the survivability of the optical network. Multicast in multi-domain optical network is a point-to-multipoint and multipoint-to-multipoint service transmission method in an optical network. Multicast services can be divided into static multicast and dynamic multicast. The protection of static multicast is based on the pre-knowledge of the global status of the multi-domain optical network, and the design of protection links or the formulation of protection schemes in advance; Protection is often aimed at multicast requests that arrive temporari...

Claims

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Application Information

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IPC IPC(8): H04B10/032H04Q11/00
CPCH04B10/032H04Q11/0062H04Q2011/0081
Inventor 吴启武刘嘉琪姜灵芝郑明珠
Owner ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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