Method for planning dynamic business wavelength route optical network

An optical network and service technology, applied in the field of optical network communication, can solve the problems of lack of service jitter, unsatisfactory performance of intelligent optical network blocking rate, etc., and achieve the effect of reducing network blocking rate

Inactive Publication Date: 2009-04-15
TSINGHUA UNIV
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Problems solved by technology

The traditional static optimization method lacks the estimation of service jitter, so the blocking rate performance of the planned intelligent optical network is not ideal when carrying dynamic services

Method used

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  • Method for planning dynamic business wavelength route optical network
  • Method for planning dynamic business wavelength route optical network

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Embodiment Construction

[0021] The wavelength routing optical network planning method for dynamic services proposed by the present invention, its flow chart is as follows figure 1 shown, including the following steps:

[0022] (1) Set and input the parameters required for optical network planning, the input parameters will be used in subsequent planning, these parameters include:

[0023] The topology structure parameter of network comprises node number, link number, wavelength number, node and link connection relationship matrix, the bandwidth of each wavelength; Present embodiment adopts the NSFNET network topology structure of node number N=14, sets each The wavelength bandwidth is 16;

[0024] Static service distribution parameters of the network, each static service includes source node, destination node, and average request bandwidth information. This distribution can be uniform distribution (the average request bandwidth between each node pair is the same) or uneven distribution (the averag...

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Abstract

The invention relates to a method for panning a wavelength routing optical-fiber network of dynamic state service, belonging to the technical field of network communication. Parameters needed by the plan of the optical-fiber network are set and input, the number of transceivers of each optical cross connect node and multiplexing wavelength value of each optical fiber in an optimal optical-fiber network in a static state are obtained by using a static optimization method and taken as the input of dynamic service analogy, and then the blocking rate of the network is obtained. The strength of service randomized jitter is regulated according to the blocking rate of the network, and the plan of the optical-fiber network can be completed by using the static optimization method for a plurality of times. The method has the advantages that based on the static optimization method, the method can ensure the overall optimization character of the panning results, meanwhile, the wavelength routing optical-fiber network which is obtained by the plan can adapt to service dynamic performance through the verification of the blocking rate, thus ensuring the blocking rate of lower network of the dynamic service to be lower than the upper limit of the blocking rate.

Description

technical field [0001] The invention relates to a wavelength routing optical network planning method for dynamic services, belonging to the technical field of optical network communication. Background technique [0002] Currently, the wavelength division multiplexing (WDM) system is being more and more widely used in the communication field, and the intelligent optical transport network technology is also developing continuously with the promotion of market demand. The existing optical network planning methods are static optimization methods, which can use linear programming, heuristic algorithms and other mathematical methods to obtain globally optimized network resource allocation schemes when the network topology and network services are determined, thereby minimizing network construction costs. In static optical networks, existing optimization methods are economical and practical. [0003] However, with the continuous emergence of new services such as data communication...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02H04B10/20H04Q11/00
Inventor 曹毅宁郑小平闻和张汉一李艳和万辛
Owner TSINGHUA UNIV
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