基于波束成形的低轨卫星物联网接入技术

谢旭旭; 丁晓进; 洪涛; 张更新

doi:10.11959/j.issn.2096-8930.2023007

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基于波束成形的低轨卫星物联网接入技术

研究 | 更新时间：2024-06-03

- 基于波束成形的低轨卫星物联网接入技术
- LEO Satellite Internet of Things Access Technology Based on Beamforming
- 天地一体化信息网络 2023年4卷第1期页码：59-65
- 作者机构：
- 作者简介：
  
  [ "谢旭旭（1999-），男，南京邮电大学通信与信息工程学院博士生，主要研究方向为空间信息网络、卫星通信等" ]
  [ "丁晓进（1981-），男，南京邮电大学通信与信息工程学院副教授，主要研究方向为频谱感知、卫星通信等" ]
  [ "洪涛（1982-），男，南京邮电大学通信与信息工程学院副教授，主要研究方向为多天线收发系统、卫星通信等" ]
  [ "张更新（1967-），男，南京邮电大学通信与信息工程学院教授，主要研究方向为空间信息网络、卫星通信等" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(U21A20450);江苏省前沿引领技术基础研究专项;Jiangsu Province Basic Research Project(BK20192002);江苏省研究生科研与实践创新计划项目;The Postgraduate Research and Practice Innovation Program of Jiangsu Province Under Grant(KYCX22_0940)
- DOI：10.11959/j.issn.2096-8930.2023007
  中图分类号： TP927.2
- 网络出版日期：2023-03，
  
  纸质出版日期：2023-03-20
- 稿件说明：
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谢旭旭, 丁晓进, 洪涛, 等. 基于波束成形的低轨卫星物联网接入技术[J]. 天地一体化信息网络, 2023,4(1):59-65.

Xuxu XIE, Xiaojin DING, Tao HONG, et al. LEO Satellite Internet of Things Access Technology Based on Beamforming[J]. Space-integrated-ground information networks, 2023, 4(1): 59-65.
谢旭旭, 丁晓进, 洪涛, 等. 基于波束成形的低轨卫星物联网接入技术[J]. 天地一体化信息网络, 2023,4(1):59-65. DOI： 10.11959/j.issn.2096-8930.2023007.

Xuxu XIE, Xiaojin DING, Tao HONG, et al. LEO Satellite Internet of Things Access Technology Based on Beamforming[J]. Space-integrated-ground information networks, 2023, 4(1): 59-65. DOI： 10.11959/j.issn.2096-8930.2023007.

摘要

融合地面物联网与卫星物联网，实现万物互联愿景，是未来天地融合网络发展的必然趋势。卫星物联网作为地面物联网强有力的补充，能够解决地面物联网服务范围受限的缺陷，但随着物联网规模的扩大，卫星载荷有限的难题会逐渐突出，将导致卫星难以满足日益增加的终端数目的通信需求。多输入多输出（MIMO）技术是地面5G的关键技术，也是6G卫星通信中的重要研究方向，考虑将MIMO中的波束成形技术引入低轨卫星物联网，实现空域资源的充分利用，从而达到提高系统容量的目的。针对波束成形技术的实施条件和卫星物联网的特征，讨论若干相关研究内容，包括信道模型、波束成形准则、单星负载均衡接入技术和面向干扰抑制的多星协作波束成形接入技术。

Abstract

The integration of terrestrial communication and satellite communication for internet of things (IoT) is the inevitable trend of the development of wireless communication network

to achieve the vision of the connection of everything.As a supplement to terrestrial IoT

satellite IoT can make up the fl aws of terrestrial IoT.However

with the expansion of IoT scale

it will be diffi cult for satellites to meet the communication needs of increasing number of IoT terminals

because the problem of limited satellite load will become increasingly prominent.Multiple-input multiple-output (MIMO) technology is the key technology of terrestrial 5G

and also an important research direction of satellite communication in the future 6G.The beamforming(BF) technology was introduced in MIMO into the low earth orbit (LEO) satellite based IoT

to made full use of spatial resources and signifi cantly improved system capacity.In view of the implementation conditions of BF technology and the characteristics of satellite IoT

several related issues were discussed

included channel model

BF criterions

load balancing access technology of one satellite and cooperative BF access technology of several satellites.

关键词

Keywords

references

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