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Three-layer satellite network load balancing routing method based on traffic forecast

A traffic prediction and load balancing technology, applied in the field of satellite network routing, can solve problems such as unbalanced distribution of satellite network traffic

Inactive Publication Date: 2018-09-14
XIAN UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a three-layer satellite network load balancing routing method based on traffic forecasting, which can effectively solve the problem of unbalanced traffic distribution in the satellite network

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  • Three-layer satellite network load balancing routing method based on traffic forecast
  • Three-layer satellite network load balancing routing method based on traffic forecast
  • Three-layer satellite network load balancing routing method based on traffic forecast

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Embodiment Construction

[0078] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0079] see figure 1 , is the three-layer satellite network load balancing routing method based on traffic prediction disclosed by the present invention, comprising the following steps:

[0080] Step 1: Classify the priority level according to the QoS requirements of the business, and divide it into Class A voice service, Class B streaming media service and Class C data service; then perform routing calculation, first judge the time when routing calculation, if it is a time slice Go to step 2 when switching time, and go to step 8 if it is a certain time within the time slice;

[0081] Step 2: Predict and calculate the position of all LEO satellites in this time slice, and upload the calculated position prediction information to the MEO management satellite, and exchange information between ME...

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Abstract

The invention discloses a three-layer satellite network load balancing routing method based on traffic forecast and belongs to the technical field of a satellite network routing policy. According to the method, through adoption of a virtual topology policy, business classification, inter-satellite distance, current satellite node activity degree and a traffic forecast value within a next time period are taken into consideration, routing computation comprises two steps of 1, carrying out time slice switching rerouting, namely, when a time slice is switched, computing the shortest path by takingdistance as weight; and 2, carrying out time slice routing, namely, computing the shortest path by taking the traffic forecast value as the weight in the time slice. The method provided by the invention is satellite node-oriented; traffic is guided to the satellite nodes with low traffic and low activity degree; the traffic load balancing is realized; the throughput of a whole network is improved; and the mean transmission delay of the whole network is reduced.

Description

technical field [0001] The invention belongs to the technical field of satellite network routing, and in particular relates to a three-layer satellite network load balancing routing method based on flow prediction. Background technique [0002] With the development of air-space-ground network technology, network development tends to converge. Due to the advantages of satellite network in the field of space information acquisition and global seamless communication, satellite network will become the basic part of the next generation Internet. The satellite network routing technology is at the core of the satellite network, and the quality of the routing strategy directly determines the overall performance of the satellite network. Due to the time-varying characteristics of the satellite network topology and the complex communication environment of the satellite network, the effect of directly transplanting the routing protocol of the ground network to the satellite network is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L12/24H04L12/721H04L12/803
CPCH04B7/18584H04L41/147H04L45/38H04L47/125
Inventor 赵季红王明欣曲桦谢志勇刘熙
Owner XIAN UNIV OF POSTS & TELECOMM
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