Editors Recommend
20 March 2024, Volume 5 Issue 1
Special Issue: Satellite Internet Architecture and Related Technologies
Survey on Routing Technology of Mega Constellation
Jiaxin ZHANG, Zhaoyang CHANG, Yilong ZHANG, Rui LI, Kaiwei WANG, Xing ZHANG
2024, 5(1):  2-13.  doi:10.11959/j.issn.2096-8930.2024001
Asbtract ( 58 )   HTML ( 11)   PDF (13421KB) ( 48 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

With the continuous expansion of satellite constellation, this paper analyzed the characteristics of mega constellation, and summarized the capability requirements of routing algorithms for mega constellation from two aspects of networking transmission and service requirements, included reducing signaling overhead, load balancing, fault recovery, and guaranteeing QoS.In addition, it introduced the routing methods, algorithms, and their performances that were applicable to mega constellation.It looked forward to the future related technology directions for mega constellation, included software defined network, area division management, artificial intelligence, and computing power routing, with the aim of providing reference for the construction of 6G satellite Internet.

Virtual Network Embedding Algorithms for Integrated Space-Terrestrial Network
Jiarui FANG, Tingting ZHANG, Yubo ZHAO, Nan WU, Bei LIANG
2024, 5(1):  14-23.  doi:10.11959/j.issn.2096-8930.2024002
Asbtract ( 32 )   HTML ( 8)   PDF (2745KB) ( 30 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

Within the intricate environment of integrated space-terrestrial network, VNE algorithms face novel challenges due to the high variability in user demands, stringent limitations of heterogeneous resources, expansive spatiotemporal scales, and the dynamic nature of network topologies.In light of this, scholars worldwide have delved deeply into the VNE issues pertaining to these networks.This review firstly summarized the three core challenges faced by VNE in these networks based on their characteristics.It then elucidated the current state of research from two major perspectives: scenario modeling and algorithmic solutions, primarily encompassing Quality of Service (QoS) aware VNE, multi-layer cross-domain heterogeneous network VNE, dynamic VNE, and problem-solving algorithms for VNE.Both theoretical and practical strategies to address the VNE challenges in integrated space-terrestrial networks were analyzed in depth.Finally, it provided a foresight into future research directions, aim to offer valuable insights for subsequent studies.

Space-Air-Ground Integrated Network Architecture Based on Mobile Edge Computing
Jian WU, Min JIA, Qing GUO
2024, 5(1):  24-31.  doi:10.11959/j.issn.2096-8930.2024003
Asbtract ( 78 )   HTML ( 25)   PDF (2374KB) ( 84 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

The next generation of wireless communication technologies will enhance the quality of user experience by supporting services such as intelligent transportation, intelligent healthcare, virtual/augmented reality, and more.These emerging services are typically computation-intensive and delay-sensitive, and must meet stringent delay, energy consumption, and reliability requirements that cloud-based services struggle to meet.In order to solve the above problems, mobile edge computing (MEC) technology was proposed to solve the problems of high latency and high bandwidth consumption when sending offloading requests back to the cloud computing centers.As an important research direction of 6G , space-air-ground integrated network (SAGIN) could make up for the huge coverage gap in the world, and had been widely concerned.This paper introduced MEC technology, federated learning technology and artificial intelligence technology into SAGIN to efficiently manage massive and heterogeneous resources in the network, and builded low-delay, low-energy consumption and high-reliability SAGIN to support various emerging services.

QoS Assurance Key Technologies in Space-Ground Heterogeneous Network
Lin LIN, Bin ZHU, Zelin WANG, Guangquan WANG, Haipeng YAO, Tao DONG, Weiying FENG
2024, 5(1):  32-39.  doi:10.11959/j.issn.2096-8930.2024004
Asbtract ( 30 )   HTML ( 10)   PDF (7811KB) ( 25 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

The high dynamics of the topology structure, the high variability of the links between space and ground, and the highly limited network resource in the space-ground heterogeneous network pose significant challenges.To address these challenges, a space-ground heterogeneous joint QoS assurance scheme was proposed based on deep analysis of space-ground heterogeneous network development situation.The cross-domain network resource orchestration, construction of a space-ground QoS system, dynamic policy control of heterogeneous joint QoS, and on-demand adaptation and deployment of space-ground network resources technologies were discussed.

A Space-Air-Ground Integrated Network Caching Method Based on Clustering Algorithm Content Popularity Prediction
Chao QIU, Chenyang WANG
2024, 5(1):  40-47.  doi:10.11959/j.issn.2096-8930.2024005
Asbtract ( 24 )   HTML ( 10)   PDF (1136KB) ( 18 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

This paper proposed a new space-air-ground integrated network caching method, that was, cluster based content caching method.Based on the space-air-ground integrated network architecture, this method used the extracted content features to predict the popularity and used it for cache replacement decision.Content popularity prediction was realized based on dynamic clustering algorithm.This method could effectively reduce the pressure on the ground backbone network and further improve the quality of user experience.It evaluated the performance of our method using the open Douban movie review dataset.This dataset could be used to simulate user requests.Experimental simulation results showed the feasibility and effectiveness of the method.

Design and Analysis of Satellite Internet Simulation and Verification System for Space Remote Sensing Services
Ying TAO, Wei LIU, Lei ZHANG, Zihe GAO, Na ZHOU
2024, 5(1):  48-59.  doi:10.11959/j.issn.2096-8930.2024006
Asbtract ( 45 )   HTML ( 8)   PDF (7810KB) ( 25 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

The architecture of satellite Internet composed of LEO satellites with remote sensing/inter-satellite and satellite-earth networking, on-board edge computing functions, and ground cloud computing centers, and various types of terminals such as sky, near space, space, ground, sea terminals was put forward.The functional architecture of on-board edge computing, included resource layer, virtualization layer, service layer, service management layer and application layer was given.On the basis of proposed the construction method of on-board edge computing simulation and verification system, a satellite Internet simulation and verification system serving space sensing services was designed, and space-based sensing information processing and distribution experiments were carried out.According to the comparison of network resource occupation and user service delay with different information processing and distribution methods, the capability level of satellite Internet for space sensing services under different capability conditions were analyzed.

Studies
LEO Multi-Satellite Coordination and Satellite-Ground Coordination Remote Sensing Communication and Computation Integration Technology
Zhongyuan JIANG, Sen WANG, Qizhou WANG, Xiangyong CAO, Xingsong HOU, Lei LEI, Dongwei SUN, Xinghua LI, Jianfeng MA
2024, 5(1):  60-75.  doi:10.11959/j.issn.2096-8930.2024007
Asbtract ( 102 )   HTML ( 38)   PDF (28854KB) ( 147 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

Firstly, the current situation of satellite remote sensing, communication, and computing systems was systematically analyzed, and the real-time remote sensing dilemma existing in the traditional satellite remote sensing systems and the satellite remote sensing communication integrated system architecture was deeply analyzed.Secondly, a multi-satellite and satellite-ground coordination integrated system architecture for satellite remote sensing, communication, and computation was put forward, and the key components and the working theories modes of the architecture were introduced in detail.Thirdly, the advantages of this architecture were demonstrated and the feasibility of key technologies was systematically clarified.Finally, the simulation and analysis method based on this architecture, which could reach minute-level remote sensing tasks with high timeliness and high potential application value compared with the traditional mode, was elaborated.

Realtime Precise Orbit Determination Technology for LEO Mega-Constellation
Zhen LI, Chuang SHI
2024, 5(1):  76-83.  doi:10.11959/j.issn.2096-8930.2024008
Asbtract ( 51 )   HTML ( 10)   PDF (14148KB) ( 40 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

Supported by GNSS, it analyzed the advantages and disadvantages of solving LEO satellite orbit on the ground or onboard the satellites.The high-fidelity non-conservative force models were applied to the real-time orbit determination algorithm.To separate the kinematic and dynamic orbit determination process had been a great advantage for LEO satellites with much frequent orbital maneuvers.The test results showed that the accuracy of accelerations computed from the radiation pressure and atmospheric drag non-conservation force models were around 5 nm/s2.Use the broadcast ephemeris, the real-time orbit determination algorithm could get an accuracy of 0.8 m in the satellites′ positions and 1.1 mm/s accuracy in the satellites′ velocity.When the real-time precise ephemeris of GNSS satellites were provided, the algorithm could get an accuracy of 8 cm in the LEO satellites′ position and 0.1 mm/s in the velocity.The method for real-time orbit determination and orbit prediction in this paper could be used to support the construction of navigation system with the mega-constellations.

Doppler Positioning Performance of LEO Mega Constellation
Yulu ZHANG, Zhen LI, Chuang SHI, Guifei JING
2024, 5(1):  84-94.  doi:10.11959/j.issn.2096-8930.2024009
Asbtract ( 55 )   HTML ( 11)   PDF (2175KB) ( 47 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

This paper proposed a Doppler-only point-solution algorithm and analyzed the Doppler positioning performance based on the Starlink constellation.The Doppler positioning accuracy was about 3~6 m.To achieve the meter-level positioning accuracy, the satellite position and velocity errors should be within several meters and several centimeters per second, respectively.The ionospheric delay rates of C-band signal would cause about 2 m error in Doppler positioning.The positioning error would increase by dozens of meters if there were no corrections for the tropospheric errors.To ensure convergence in the LEO-based Doppler positioning, the initial receiver position error should be less than 300 km when the satellites orbit at an altitude of 550 km.

Application
Analysis of Satellite Internet Security Risks and Countermeasures
Xin GU, Chao SHAN, Caijun SUN, Ke LI, Min TIAN, Ruiqing WANG
2024, 5(1):  95-101.  doi:10.11959/j.issn.2096-8930.2024010
Asbtract ( 81 )   HTML ( 19)   PDF (2015KB) ( 68 )   Knowledge map   
Figures and Tables | References | Related Articles | Metrics

This paper was commenced with an exploration of the system composition and security events of satellite Internet, conducted a comprehensive assessment of risks associated with entities such as satellites, terminals, ground stations, mission control, and operation center, secondly extends to communication pathways, encompassing access links, inter-satellite links, feeder links, TT&C links, and ground networks, then delved into data-related risks, covering operational data, regulatory content, public privacy, and outbound data, furthermore, addresses challenges posed by emerging technologies.Finally, proposed corresponding countermeasures for potential threats and concludes by outlining crucial research directions for understanding the evolving security landscape of satellite Internet.

Interleaved-LoRa Transmission Schemes for Satellite IoT
Luo Jin, Xia Jiabao, Bai Yang, and Bai Baoming
Online First: 2022-12-27
Research on areal-time simulation system for protocol design and performance evaluation of large-scale satellite networks
CAO Qixuan, SHI Yan, ZHOU Lianwei, DING Xinwang
Online First: 2022-12-27
Application research of the power grid business carrying on low earth orbit broadband satellite network
Zhu Liang, Qi Shaobo, Yang Bo, Xu Bingyu, Li Zifan, Zhang Shijie
Online First: 2022-12-27
Application Status and Analysis of Starlink Constellation
Wang Yu, Li Qing, Li Ke-Jun, Jiang Chang-Lin, Wang Ye, Jiang Yong, Xu Ming-Wei
Online First: 2022-12-27
Key Technologies and Challenges of Satellite Deterministic Network
JI Ruoyu, ZHANG Hengsheng, LIU Meihui, LI He, XU Fangmin, ZHAO Chenglin
Online First: 2022-12-09
2024 Vol.5 No.1
2023 Vol.4 No.4 No.3 No.2 No.1
2022 Vol.3 No.4 No.3 No.2 No.1
2021 Vol.2 No.4 No.3 No.2 No.1
2020 Vol.1 No.2 No.1
Survey on the Development of Space-Integrated-Ground Information Network
Wei WU
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (1): 1-16 doi: 10.11959/j.issn.2096-8930.20200101
Abstract1943)   HTML350)    PDF (1232KB)(2261)    Knowledge map   
Development of Electrically Controlled Liquid Crystal Phased Array Antenna
Wei XIU, Guang YANG, Haiyan TIAN, Chen PANG, Yongzhen LI, Xuesong WANG
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (2): 109-115 doi: 10.11959/j.issn.2096-8930.20200215
Abstract982)   HTML104)    PDF (1746KB)(1769)    Knowledge map   
Analysis of the Starlink Satellite Network Filing Application
Wenhan YANG, Guoliang HUA, Yan FENG, Yuanfu LI, Ranran HOU
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (1): 60-68 doi: 10.11959/j.issn.2096-8930.2021008
Abstract2169)   HTML447)    PDF (1185KB)(1760)    Knowledge map   
Network Architecture and Key Technologies for the Integrated Satellite and Terrestrial Mobile Communication System
Hui XU, Deshan MIAO, Shaoli KANG, Shaohui SUN
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (2): 2-10 doi: 10.11959/j.issn.2096-8930.20200201
Abstract1059)   HTML264)    PDF (1508KB)(1611)    Knowledge map   
Research Status of Space-air-ground Integrated Network and Application Prospects of New Technologies
Xiaokai ZHANG, Daoxing GUO, Bangning ZHANG
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (4): 19-26 doi: 10.11959/j.issn.2096-8930.2021039
Abstract1307)   HTML223)    PDF (963KB)(1274)    Knowledge map   
Development and Prospect of Satellite 5G Technology
Lijun ZHAI, Shuming PAN, Chunting WANG
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (1): 1-10 doi: 10.11959/j.issn.2096-8930.2021001
Abstract1036)   HTML156)    PDF (939KB)(1234)    Knowledge map   
Network Operation,Maintenance and Resource Management in Mega Constellation System
Di ZHOU,Min SHENG,Qi HAO,Jiandong LI,Jianping LIU
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (1): 26-35 doi: 10.11959/j.issn.2096-8930.20200103
Abstract556)   HTML58)    PDF (1417KB)(1203)    Knowledge map   
Survey of Low Earth Orbit Satellite Communication Network Routing Technology
Shuang ZHENG, Xing ZHANG, Wenbo WANG
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (3): 97-105 doi: 10.11959/j.issn.2096-8930.2022037
Abstract823)   HTML178)    PDF (921KB)(1053)    Knowledge map   
Remote Satellites Computing transmission and Key Technologies
lang HuYan, Ying Li, Quan Zhou, Jiayuan Wei, Juanni Liu, Yi Zhang
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (2): 63-71 doi: 10.11959/j.issn.2096-8930.2022022
Abstract385)   HTML48)    PDF (1054KB)(1002)    Knowledge map   
Development Status and Trend of Space Optical Communication Technology
Shaowen LU, Xia HOU, Guotong LI, Jianfeng SUN, Hanghua YU, Weibiao CHEN
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (2): 39-46 doi: 10.11959/j.issn.2096-8930.2022019
Abstract652)   HTML99)    PDF (2383KB)(988)    Knowledge map   
Research on Strategies and Technologies for Resource Management and Control of Heterogeneous Network of High and Low Orbit Satellites
Meirong ZHANG, Mengting HAO, Chuang WANG, Gengxin ZHANG
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (4): 67-74 doi: 10.11959/j.issn.2096-8930.2021045
Abstract609)   HTML106)    PDF (1516KB)(903)    Knowledge map   
Discussion on the Development of Space-Based Information Systems of America
Zhongyu MIAO, Xiaogeng HOU, Hanyu ZHENG, Yuanyuan HAO
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (2): 81-88 doi: 10.11959/j.issn.2096-8930.2022024
Abstract719)   HTML92)    PDF (819KB)(880)    Knowledge map   
Research on the Architecture of Phased Array Antenna of LEO Communication Satellites Based on Hybrid Beamforming
Rong HU, Xiumei LI, Juan DENG, Jun ZHOU, Shujing DONG, Ling LIU, Wenying MA
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (2): 90-97 doi: 10.11959/j.issn.2096-8930.2021025
Abstract938)   HTML68)    PDF (2618KB)(857)    Knowledge map   
Research Prospect of Anti-Jamming Strategy for the Satellite Internet
Chen HAN, Aijun LIU, Kang AN
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (1): 50-55 doi: 10.11959/j.issn.2096-8930.2022007
Abstract421)   HTML64)    PDF (868KB)(832)    Knowledge map   
Research on Satellite Internet Security Protection Based on Zero Trust
Yufei SONG, Wenhui ZHOU, Jiandong LIU, Xinpeng LI
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (3): 15-23 doi: 10.11959/j.issn.2096-8930.2021027
Abstract710)   HTML106)    PDF (1410KB)(825)    Knowledge map   
Beamforming Algorithm of LEO Satellite Communication System
Haiwang WANG, Chenguang HUANG, Cheng ZOU, Fengwei SHAO, Jiachao CHANG, Guotong LI
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (2): 3-11 doi: 10.11959/j.issn.2096-8930.2022015
Abstract513)   HTML106)    PDF (2172KB)(804)    Knowledge map   
SDN-Based Satellite Networks:Progress, Opportunities and Challenges
Dan YANG, Jiang LIU, Ran ZHANG, Fangqi LIU, Man OUYANG, Tao HUANG, Yunjie LIU
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (2): 34-41 doi: 10.11959/j.issn.2096-8930.20200205
Abstract717)   HTML128)    PDF (770KB)(774)    Knowledge map   
The Architecture and Key Technologies of the Internet of Things with Integration of Heaven and Earth and Multi Services
Xiao WEI, Jing ZHANG, Ziao QUAN, Yinuo GUO, Xu FENG
Space-Integrated-Ground Information Networks. 2022 Vol. 3 (3): 3-12 doi: 10.11959/j.issn.2096-8930.2022026
Abstract342)   HTML74)    PDF (2570KB)(763)    Knowledge map   
Analysis on Low-Earth-Orbit Constellation Networking and Adaptability of Ground IP Routing Technology
Ci HE,Yasheng ZHANG,Chenhua SUN,Xudong LI
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (1): 36-41 doi: 10.11959/j.issn.2096-8930.20200104
Abstract369)   HTML53)    PDF (2964KB)(738)    Knowledge map   
On-Board Switching for Space-Integrated-Ground Information Network: Progress and Trends
Hao WU, Shuai WANG, Xiance DENG, Peilong LIU, Kai LIU, Jian YAN
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (2): 2-10 doi: 10.11959/j.issn.2096-8930.2021014
Abstract583)   HTML113)    PDF (877KB)(725)    Knowledge map   
Analysis of the Starlink Satellite Network Filing Application
Wenhan YANG, Guoliang HUA, Yan FENG, Yuanfu LI, Ranran HOU
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (1): 60-68
doi: 10.11959/j.issn.2096-8930.2021008
Abstract( 2169 )   HTML PDF (1185KB) (1760 Knowledge map   
Survey on the Development of Space-Integrated-Ground Information Network
Wei WU
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (1): 1-16
doi: 10.11959/j.issn.2096-8930.20200101
Abstract( 1943 )   HTML PDF (1232KB) (2261 Knowledge map   
Research Status of Space-air-ground Integrated Network and Application Prospects of New Technologies
Xiaokai ZHANG, Daoxing GUO, Bangning ZHANG
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (4): 19-26
doi: 10.11959/j.issn.2096-8930.2021039
Abstract( 1307 )   HTML PDF (963KB) (1274 Knowledge map   
Network Architecture and Key Technologies for the Integrated Satellite and Terrestrial Mobile Communication System
Hui XU, Deshan MIAO, Shaoli KANG, Shaohui SUN
Space-Integrated-Ground Information Networks. 2020 Vol. 1 (2): 2-10
doi: 10.11959/j.issn.2096-8930.20200201
Abstract( 1059 )   HTML PDF (1508KB) (1611 Knowledge map   
Development and Prospect of Satellite 5G Technology
Lijun ZHAI, Shuming PAN, Chunting WANG
Space-Integrated-Ground Information Networks. 2021 Vol. 2 (1): 1-10
doi: 10.11959/j.issn.2096-8930.2021001
Abstract( 1036 )   HTML PDF (939KB) (1234 Knowledge map   
Copyright Information
Competent Unit: Ministry of Industry and Information Technology of the People's Republic of China
Sponsor: Posts & Telecom Press Co., Ltd.
Guiding Unit: China Satellite Network Group Co., Ltd.
Publisher: China InfoCom Media Group
Editor-in-Chief: LU Jun Executive
Editor-in-Chief: WU Wei
Associate Editor-in-Chief: WANG Chunting, LI Jianming, LYU Ziping,ZHU Decheng, SUN Qibin,
LIU Hualu
Director of Editorial Department: NIU Xiaomin
Deputy Director of Editorial Department: ZHAO Lulu
Address: F2, Beiyang Chenguang Building, Shunbatiao No.1 Courtyard, Fengtai District, Beijing, China
Postal Code: 100079
Tel: 010-53879078、53879076、53878187
Distribution Department Tel: 010-52265707
E-mail: sigin@bjxintong.com.cn ISSN 2096-8930
Postal Code: 80-791
ISSN 2096-8930
CN 10-1706/TN
www.j-sigin.com.cn
visited
Total visitors:
Visitors of today:
Now online: