Multi-Users Dynamic Bandwidth Allocation Technology of SDTN

Jianxiang CHU; Yin HUANG; Chong WANG; Yunze CAO

doi:10.11959/j.issn.2096-8930.2022046

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Multi-Users Dynamic Bandwidth Allocation Technology of SDTN

Special Issue: Information Transmission Technology for Satellite-Terrestrial Integration | 更新时间：2024-06-03

- Multi-Users Dynamic Bandwidth Allocation Technology of SDTN
- Space-Integrated-Ground Information Networks Vol. 3, Issue 4, Pages: 83-91(2022)
- 作者机构：
  
  1. 北京遥感设备研究所，北京 100086
  2. 航天科工空间工程发展有限公司，北京 100086
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2022046
  CLC： TN393
- Published Online：2022-12，
  
  Published：20 December 2022
- 稿件说明：
移动端阅览
Jianxiang CHU, Yin HUANG, Chong WANG, et al. Multi-Users Dynamic Bandwidth Allocation Technology of SDTN[J]. Space-integrated-ground information networks, 2022, 3(4): 83-91.
DOI：

Jianxiang CHU, Yin HUANG, Chong WANG, et al. Multi-Users Dynamic Bandwidth Allocation Technology of SDTN[J]. Space-integrated-ground information networks, 2022, 3(4): 83-91. DOI： 10.11959/j.issn.2096-8930.2022046.

摘要

航天器的测控、数据传输分为天基和地基两种方式，其中天基的测控、数据传输因具有全球覆盖、随遇接入、实时信息回传等优势，具有很广泛的应用前景，同时对其多航天器的动态带宽分配提出了一定要求。在研究中高轨测控、数据传输星座网络架构和多址接入协议的基础上，提出面向数据传输任务的星上多波束、多航天器用户、多任务优先级的动态带宽分配算法，能很好地应用于中高轨星座按需、实时对多个用户的数据传输请求进行资源分配，并可作为天基测控、数据传输接入网络的基础模型。

Abstract

The TT＆amp;C and data transmission of spacecraft are divided into two methods: space-based and ground-based.Among them

space-based method has the advantages of global coverage

access at any time

and real-time information return

and have a wide range of application prospects.But it also puts forward certain requirements for the dynamic bandwidth allocation of its multi-spacecraft.Based on the studied of medium-orbit TT＆amp;C

data transmission constellation network architecture and multiple access protocols

a dynamic bandwidth allocation algorithm for on-doard multi-beam

multi-spacecraft users

and multi-task priorities for data transmission tasks was proposed.It was very suitable for the on-demand and real-time resource allocation of data transmission requests of multiple spacecraft in the mid-orbit constellation

and could be used as a multiple access protocol model for space-based measurement and control and data transmission access networks.

关键词

Keywords

references

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