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Public communication multi-service traffic estimation method

A multi-service flow and public communication technology, which is applied in the field of fast multi-service flow estimation, can solve the problems of slow estimation of network traffic matrix, achieve fast and accurate estimation, reduce sensitivity, and improve speed

Inactive Publication Date: 2018-02-09
ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +3
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Problems solved by technology

However, these methods are very slow in obtaining network traffic matrix estimates

Method used

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  • Public communication multi-service traffic estimation method
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  • Public communication multi-service traffic estimation method

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Embodiment Construction

[0038] The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 As shown, a public communication multi-service flow estimation method includes the following steps:

[0040] Step 1. First analyze the relationship between traffic matrix, routing matrix and link load:

[0041] y=Ax (1)

[0042] Among them, y represents the link load (can be written as a column vector), x represents the traffic matrix, A represents the routing matrix, and each element A of it ij If it is 1, it means that the flow j in the source-destination pair passes through link i; Estimate the flow matrix of the business;

[0043] Step 2. Introduce constraints and construct an optimization objective function;

[0044]Suppose there are n nodes and l links in the network, then there are N=n nodes in the network 2 OD flow, so the flow matrix x in formula (1) can be expressed as x=(x 1 ,x 2 ,...,x ...

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Abstract

The invention relates to a public communication multi-service traffic estimation method. A relationship between a traffic matrix and a link load is discussed, constraint conditions are introduced, andoptimal target functions are constructed; then a proper target function is selected and subjected to iterative optimization, and by introducing a resolution matrix and combining an attribute of the resolution matrix, an excellent network tomography prior result is obtained in the iterative process; and next, the traffic matrix is well estimated by adopting a simplex method. According to the method, a statistical inference method is not used for estimating the traffic matrix, so that not only is sensitivity for apriority reduced, but also a speed of network tomography is improved. The public communication multi-service traffic estimation method disclosed by the invention can achieve effects of rapidly and accurately estimating the traffic matrix and tracking a dynamic state of the trafficmatrix.

Description

technical field [0001] The invention relates to the technical field of fast estimation of multi-service flows under the environment of public communication access network, in particular to a method for estimating multi-service flows of public communication. Background technique [0002] With the rapid development of information technology, the network scale of the Internet has increased exponentially. In order to design and plan the network, network operators need to know how data traffic is transmitted in the network, and the traffic matrix just reflects the data flow between all sources and destinations in the network. Elements in the traffic matrix are called source-destination (OD) pairs (or flows). However, it is difficult to directly measure the traffic matrix in the network, while the link load is easy to obtain. The relationship between traffic matrix, routing matrix and link load is [0003] y=Ax [0004] Among them, y represents the link load (can be written as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L41/142H04L41/145
Inventor 易丹孟凡博曹丽娜梁凯蒋定德
Owner ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY
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