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Resource allocation method for hybrid satellite communication system based on classification multi-objective optimization

A satellite communication system, multi-objective optimization technology, applied in the field of satellite resource allocation, can solve the problems of FDMA/MF-TDMA hybrid satellite communication system resource allocation complexity, resource allocation comprehensive optimization difficulties, etc.

Active Publication Date: 2020-10-23
军事科学院系统工程研究院网络信息研究所
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Problems solved by technology

In the FDMA / MF-TDMA hybrid satellite communication system, due to the different characteristics of the FDMA carrier and the MF-TDMA carrier, there are different target conditions when allocating satellite resources to the two carriers. New target conditions will be added in the device, and these multi-target conditions make the resource allocation of the FDMA / MF-TDMA hybrid satellite communication system very complicated
Especially when there are more than 3 target conditions, the comprehensive optimization of resource allocation will become very difficult
Therefore, in the current actual system, the simplified calculation and allocation are often performed manually, and the comprehensive optimal allocation work under multi-objective conditions is not really carried out.

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  • Resource allocation method for hybrid satellite communication system based on classification multi-objective optimization
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  • Resource allocation method for hybrid satellite communication system based on classification multi-objective optimization

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Embodiment Construction

[0067] The present invention uses a hybrid satellite communication system resource allocation method based on classification and multi-objective optimization to optimize the resources allocated for the application business, specifically:

[0068] S1. Select multi-target conditions for resource allocation according to the carrier type of the application service.

[0069] Determine the type of carrier to which the service belongs, and then select multiple optimization targets corresponding to the carrier type in the resource allocation target pool P to form a multi-target condition set

[0070] S2, classifying the multi-objective conditions with mutual exclusion.

[0071] Divide the multi-objective set G into two mutually exclusive categories C 1 ={g 1 1 , g 2 1 ,...,g m 1} and C 2 ={g 1 2 , g 2 2 ,...,g n 2}, where C 1 ∪C 2 =G, g i 1 for mutex class C 1 target in g j 2 for mutex class C 2 The target in , m, n are respectively C 1 、C 2 The number of o...

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Abstract

The invention discloses a hybrid satellite communication system resource allocation method based on classification multi-objective optimization. The method comprises the following steps: firstly, selecting a multi-objective condition for resource allocation according to an application service carrier type; secondly, carrying out exclusive classification on the multi-target conditions; generating subjective weights of multiple targets in different mutual exclusion classes based on an analytic hierarchy process; generating objective weights of multiple targets in different mutual exclusion classes based on the information entropy; generating a combined weight of multiple target conditions in the mutual exclusion class; constructing a Pareto optimization model; carrying out multi-objective optimization solution by using a particle swarm optimization algorithm to obtain a Pareto optimal solution; and finally, performing resource allocation according to an optimization result. On the basisof fully considering FDMA and MF-TDMA satellite communication carrier characteristics, exclusive classification is carried out through constraint conditions of different carrier types, and then multi-target joint optimization is carried out, so that reasonable allocation of FDMA / MF-TDMA hybrid satellite communication system resources is realized.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and in particular relates to a method for allocating satellite resources. Background technique [0002] FDMA and MF-TDMA are the most commonly used multiple access technologies in satellite communication systems, and are widely used in different satellite communication systems. At present, in order to meet the different networking application requirements of different users, a large number of satellite communication systems often have two multiple access methods of FDMA and MF-TDMA at the same time. We call this system FDMA / MF-TDMA hybrid satellite communication. system. In the FDMA / MF-TDMA hybrid satellite communication system, due to the different characteristics of the FDMA carrier and the MF-TDMA carrier, there are different target conditions when allocating satellite resources to the two carriers. New target conditions will be added in the device, and these multi-target con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
CPCH04B7/1851H04B7/18519
Inventor 何元智刘韵王利利
Owner 军事科学院系统工程研究院网络信息研究所
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