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Satellite network capacity calculation method and device and electronic equipment

A satellite network and satellite technology, applied in the field of communication, can solve the problems of increasing the complexity of satellite network capacity analysis, long calculation time, and long calculation time of satellite network capacity

Active Publication Date: 2020-08-14
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The satellite network is a heterogeneous multi-layer network composed of geostationary orbit satellites, mid-orbit satellites and low-orbit satellites, and since the mid-orbit satellites and low-orbit satellites revolve around the earth cycle, the connection relationship of satellites in the satellite network will change dynamically over time , which further increases the complexity of satellite network capacity analysis
When the existing algorithm calculates the satellite network capacity, the calculation time of the satellite network capacity is too long due to the different node types of the satellite network and its topology structure that changes dynamically over time
[0003] In summary, the satellite network capacity calculation method in the prior art has the technical problem of long calculation time

Method used

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  • Satellite network capacity calculation method and device and electronic equipment
  • Satellite network capacity calculation method and device and electronic equipment
  • Satellite network capacity calculation method and device and electronic equipment

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Embodiment 1

[0030] An embodiment of the present invention provides a satellite network capacity calculation method, such as figure 1 As shown, the method specifically includes the following steps:

[0031] Step S102, obtaining the time expansion graph of the satellite network to be calculated and the maximum transmission capacity of each inter-satellite link within a preset time period.

[0032] In the embodiment of the present invention, the satellite network capacity is defined as, in the preset time period [t 0 ,t 1 ], based on the inter-satellite link transmission, from the source satellite v s to the destination satellite v d The maximum data capacity that can be transmitted C(v s ,v d ,t 0 ,t 1 ). To calculate the satellite network capacity of the satellite network to be calculated, it is first necessary to obtain the time expansion diagram of the satellite network to be calculated within the preset time period and the maximum transmission capacity of each inter-satellite link...

Embodiment 2

[0077] The embodiment of the present invention also provides a satellite network capacity calculation device, the satellite network capacity calculation device is mainly used to execute the satellite network capacity calculation method provided in the first embodiment above, the satellite network capacity calculation device provided in the embodiment of the present invention is as follows Make a specific introduction.

[0078] Figure 7 is a functional block diagram of a satellite network capacity calculation device provided by an embodiment of the present invention, as shown in Figure 7 As shown, the device mainly includes: an acquisition module 10, a search module 20, and a determination module 30, wherein:

[0079] The acquisition module 10 is configured to acquire the time expansion graph of the satellite network to be calculated and the maximum transmission capacity of each inter-satellite link within a preset period of time.

[0080] The search module 20 is used to comb...

Embodiment 3

[0099] see Figure 8 , the embodiment of the present invention provides an electronic device, the electronic device includes: a processor 60, a memory 61, a bus 62 and a communication interface 63, the processor 60, the communication interface 63 and the memory 61 are connected through the bus 62; the processor 60 is used to execute executable modules, such as computer programs, stored in memory 61 .

[0100] Wherein, the memory 61 may include a high-speed random access memory (RAM, RandomAccessMemory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 63 (which may be wired or wireless), and the Internet, wide area network, local network, metropolitan area network, etc. can be used.

[0101] The bus 62 can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be d...

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Abstract

The invention provides a satellite network capacity calculation method and device, and electronic equipment, and relates to the technical field of communication, and the method comprises the steps: obtaining a time expansion diagram of a to-be-calculated satellite network in a preset time period and the maximum transmission capacity of each inter-satellite link; searching all augmented paths fromthe source satellite to the target satellite in the to-be-calculated satellite network in combination with the time expansion diagram, the maximum transmission capacity of each inter-satellite link and a preset path search strategy; and determining the satellite network capacity of the to-be-calculated satellite network in a preset time period based on the remaining transmission capacities of theinter-satellite links on all augmented paths. According to the method, the time structure in the satellite network transmission process is fully utilized; in the augmented path search process, once the satellite data is transmitted from the target satellite to other satellites, the satellite data is forbidden to be transmitted back to the target satellite, possible paths in the augmented path search process are effectively reduced, and therefore the technical problem that in the prior art, a satellite network capacity calculation method is long in calculation time is solved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a satellite network capacity calculation method, device and electronic equipment. Background technique [0002] The satellite network is a heterogeneous multi-layer network composed of geostationary orbit satellites, mid-orbit satellites and low-orbit satellites, and since the mid-orbit satellites and low-orbit satellites revolve around the earth cycle, the connection relationship of satellites in the satellite network will change dynamically over time , which further increases the complexity of satellite network capacity analysis. When the existing algorithm calculates the capacity of the satellite network, due to the different node types of the satellite network and its topology that changes dynamically with time, the calculation time of the satellite network capacity is too long. [0003] To sum up, the satellite network capacity calculation method in the prior art has ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04B7/185H04L12/24
CPCH04B7/18521H04L41/12H04L43/0894
Inventor 姜春晓朱向明匡麟玲
Owner TSINGHUA UNIV