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Self-adaption routing algorithm for constellation based on throughput rate

A satellite and ground terminal technology, used in network traffic/resource management, electrical components, wireless communications, etc.

Inactive Publication Date: 2013-08-14
宗鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to measure the current remaining processing power of each satellite

Method used

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  • Self-adaption routing algorithm for constellation based on throughput rate
  • Self-adaption routing algorithm for constellation based on throughput rate

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Experimental program
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Embodiment Construction

[0006] 1) According to the service access statistics at a certain time t, the balance time inter-satellite service flow d is calculated by the Markov process queuing theory, and the remaining satellite bandwidth b=p-d is obtained from the processing capacity p.

[0007] 2) From the remaining bandwidth b, calculate the access traffic a of each satellite of the satellite group to the target terminal, and set the initial access weight vector of the satellite group as weight by Update, μ(n) and q(n) are step values, by It is obtained that ε(n) is the difference between the total service access volume and the total output volume of the satellite group. The purpose is to constantly adjust the weights to maximize the access amount Σa of the target service and minimize ε(n), that is, to obtain the maximum throughput.

[0008] 3) Due to the access of new services, the balance of service flow among satellite groups will be destroyed, and a new balance will be established. When ent...

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Abstract

The invention aims to provide a method for solving the problem of that route optimization of information exchange between constellations and satellites. Under the condition that the processing ability of the satellites is certain, a plurality of satellites are controlled to deal with mutual services while realizing maximal ground services access. As for the services covered by the constellations, as the distribution is uneven, and an area is busy, but areas around are free, and the busy satellites are overwhelmed and go beyond the processing ability, so as to cause the problem that the services can not be accessed the satellites and are spilled out. Therefore, a plurality of satellites can be adopted to aim at a terminal to provide access services, just as a large antenna array scanning is formed in a space to aim at a target. The routing algorithm aims to that not only more ground services can be accessed, but also respective services between the satellites can be dealt with, and has the effect that a plurality of satellites can serve the same target user at the same time, and additionally guarantee maximum throughput rate.

Description

Technical field: [0001] Satellite communications will provide broadband mobile services with global coverage, and provide ubiquitous communication methods for Internet applications of multimedia and broadband data. In the future, one of the important goals is to establish an integrated aerospace network with satellite constellations as the core. Due to the high cost of the satellite constellation system and the extremely limited satellite information processing capability compared to the ground, how to effectively utilize satellite system resources while ensuring the service quality of various broadband network services is an important issue that constellation network management technology needs to solve. The purpose of the present invention is to propose a method for solving the routing optimization problem of information exchange between constellation satellites. Under the condition of a certain processing capacity on the satellite, multiple satellites can be controlled by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02
Inventor 宗鹏
Owner 宗鹏