Special Issue: Architecture of Space-Integrated-Ground Information Network

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For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select 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, 1 (2): 2-10.   DOI: 10.11959/j.issn.2096-8930.20200201 Abstract （1022）   HTML （257）    PDF（pc） （1508KB）（1505）       Knowledge map    Save The fl exible and reconfi gurable network architecture for the integrated satellite and terrestrial mobile communication system was proposed based on analyzed the scenarios and requirements.And the integrated satellite and terrestrial mobile communication system could realized the reconstruction of network functions and ensured the deterministic service capability of the network.A unifi ed transmission mechanism and the mobility management mechanism for the integrated satellite and terrestrial mobile communication system was proposed to realized efficient transmission and improved network resource management effi ciency. Table and Figures | Reference | Related Articles | Metrics Select Communication and Security Integrated Space-Earth Heterogeneous Network Architecture Xiaoning ZHANG, Lidong ZHU Space-Integrated-Ground Information Networks    2020, 1 (2): 11-16.   DOI: 10.11959/j.issn.2096-8930.20200202 Abstract （474）   HTML （67）    PDF（pc） （1343KB）（587）       Knowledge map    Save To achieve the integration of space information networks and high-speed rail, ship and civil aviation private communication networks, this article proposes to leverage the mechanism of identifi er and locator separation to construct the communication and security integrated space-earth heterogeneous network architecture.The proposed network architecture included four network layers (i.e., space-earth heterogeneous network service layer, space-earth heterogeneous network traffi c layer, space-earth heterogeneous network routing layer and space-earth heterogeneous network access layer) and fi ve network identifi ers (i.e., service identifi er, traffi c identifi er, routing identifi er, access identifi er and host identifi er).With the method of effi cient network identifi er mapping, the communication and security integrated requirement for space information networks and ground private communication networks could be guaranteed. Table and Figures | Reference | Related Articles | Metrics Select Spatial Computing Interconnection Network Architecture Based on Hybrid Orbit Networking Jianping HU, Jie SUN, Huizhong XU, Ting LI Space-Integrated-Ground Information Networks    2020, 1 (2): 17-21.   DOI: 10.11959/j.issn.2096-8930.20200203 Abstract （242）   HTML （37）    PDF（pc） （1714KB）（479）       Knowledge map    Save In view of the current development trend of building a unifi ed, integrated, and hybrid orbital space information network in various countries around the world, as well as the ineffi ciency and delay caused by the existing satellite systems relying on ground information processing, a space computing interconnection network architecture based on hybrid orbital networking was proposed, which unifi ed the existing separate satellite networks in a set of architecture, integrated the existing satellite networks through inter satellite links and on-satellite processing to realize the interconnection and effi cient processing of the entire space information network.It made the future space network not only a channel for information, but also a platform for information processing, improved the information processing capacity and operating effi ciency of the spatial information network, and meet the needs of a large number of node information interaction and processing between the world and the earth in the future. Table and Figures | Reference | Related Articles | Metrics Select Research on Space-Based Integrated Internet of Things Architecture and Interference Analysis Gengxin ZHANG, Xiaojin DING, Zhicheng QU Space-Integrated-Ground Information Networks    2020, 1 (2): 22-33.   DOI: 10.11959/j.issn.2096-8930.20200204 Abstract （450）   HTML （58）    PDF（pc） （3432KB）（440）       Knowledge map    Save Considering “internet of everything” of the future internet of things (IoT), the space-based integrated IoT architecture was designed, and the interference scenarios of the coexistence of satellite and ground was analyzed, with the aid of analyzing the architectures of the spatial information network and space-based access network.Specifi cally, fi rstly, relying on both the integration of satellite network and ground network, and the advanced design concept of decoupling control and data, a spacebased satellite IoT architecture was designed in the presence of the specifi c characteristics of access network and terminals, which included space-based backbone network, space-based access network, ground-based IoT, core network and multimodal IoT terminals.Moreover, the process of space-based control plane was also given.Secondly, interference analysis was carried out for satellite spectrum sharing scenario and satellite-ground spectrum sharing scenario respectively, and preliminary analysis results were presented. Table and Figures | Reference | Related Articles | Metrics Select 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, 1 (2): 34-41.   DOI: 10.11959/j.issn.2096-8930.20200205 Abstract （711）   HTML （128）    PDF（pc） （770KB）（750）       Knowledge map    Save The current research status of SDN-based satellite communication networks was investigated, the SDN-based satellite communication network architecture and related key technical solutions was introduced and discussed; The opportunities and challenges faced by SDN-based satellite networks were discussed. Table and Figures | Reference | Related Articles | Metrics Select Multiple Addressing Coordination and Switching Technology in Space-Integrated-Ground Information Network Wenlan DIAO, Jianping AN, Yu ZHANG, Han HU Space-Integrated-Ground Information Networks    2020, 1 (2): 42-47.   DOI: 10.11959/j.issn.2096-8930.20200206 Abstract （284）   HTML （39）    PDF（pc） （1152KB）（288）       Knowledge map    Save The construction requirements and deployment status of the space-integrated-ground integrated information network was analyzed, and the diffi culties in the integration of satellite network and internet was discussed.To tackle the problems of complex network structure, high dynamic topology, diffi cult data compatibility and limited satellite resources, a multi addressing coordination and switching technology based on IP address, ID identifi cation and content name was proposed.In particular, a multi addressing datagram format was designed, and the multi addressing route forwarding mechanism was extended.It could realized the interconnection of heterogeneous networks, the stability of mobile communication, the compatible switching of polymorphic data, and the effi cient routing with low power consumption of satellites. Table and Figures | Reference | Related Articles | Metrics Select Research on In-Network Caching Mechanisms for Space-Integrated-Ground Content Delivery Service Yang CAO, Yufeng ZHU, Junfeng LV, Tao JIANG, Peng GAO, Dongchen ZHANG Space-Integrated-Ground Information Networks    2020, 1 (2): 48-56.   DOI: 10.11959/j.issn.2096-8930.20200207 Abstract （205）   HTML （16）    PDF（pc） （2028KB）（574）       Knowledge map    Save In view of the problem of satellite mobility and terrestrial network resource constraints, a pre-placement strategy for terrestrial network content based on named data networking was proposed; Then, local content requests under the coverage of multiple base stations was fully considered.Based on the diff erence in distribution, a content distribution strategy based on fairness in satellite networks was proposed.The numerical results showed that the proposed content pre-placement strategy was eff ective in terms of satellite network content injection.In addition, in terms of satellite network content distribution, the proposed fair-based content distribution strategy could maximized content satisfaction. Table and Figures | Reference | Related Articles | Metrics Select Traffic Prediction of Space-Integrated-Ground Information Network Based on Improved LSTM Algorithm Chengsheng PAN, Yufu WANG, Li YANG Space-Integrated-Ground Information Networks    2020, 1 (2): 57-65.   DOI: 10.11959/j.issn.2096-8930.20200208 Abstract （399）   HTML （21）    PDF（pc） （1628KB）（312）       Knowledge map    Save The space-integrated-ground information network is easy to interrupt and the traffi c fl uctuation is not stable due to the problems of high traffi c burst and topological time-varying, which makes the traffi c prediction diffi cult much higher than the ground.In order to solve this problem, an improved LSTM algorithm was put forward.Firstly, the traffi c autocorrelation was judged by analyzd the infl uence of the lag variable of traffi c sequence on the predicted value; Secondly, the noise and breakpoint of the training set were eliminated by replacing the interruption with the predicted value; Finally, Dropout algorithm was used to reduce the impact of noise and neural network over fi tting, and accurately predict the traffi c data of the integrated intelligent network.The simulation results showed that in OPNET simulation environment, compared with other algorithms, the accuracy of this algorithm was improved by 59.21%, and the training speed of the algorithm was improved by 11.11%, which could provide eff ective data support for the overall scheduling of the integrated intelligent network. Table and Figures | Reference | Related Articles | Metrics Select Space-Terrestrial Integrated Multi-Identifier Network with Endogenous Security Guohua WEI, Hui LI, Yongjie BAI, Gengxin LI, Kaixuan XING Space-Integrated-Ground Information Networks    2020, 1 (2): 66-72.   DOI: 10.11959/j.issn.2096-8930.20200209 Abstract （493）   HTML （33）    PDF（pc） （2547KB）（490）       Knowledge map    Save A novel network architecture, named space-terrestrial integrated multi-identifi er network (STI-MIN) was proposed, which was suitable for the environment of space-terrestrial integrated situation.In the following passage, the fundamental theory, Space-Terrestrial integrated routing strategy, identifi er management system and endogenous security mechanism of STI-MIN were depicted.Then prototype experiment progress was summarized and the merit of STI-MIN by comparing with traditional network was analyzed. Table and Figures | Reference | Related Articles | Metrics Select Physical Layer Security Schemes in Space-Integrated-Ground Information Network Fangshu MA, Yan WANG, Guowei ZHANG, Yuxin CHENG Space-Integrated-Ground Information Networks    2020, 1 (2): 73-80.   DOI: 10.11959/j.issn.2096-8930.20200210 Abstract （326）   HTML （33）    PDF（pc） （1572KB）（567）       Knowledge map    Save Firstly, the current mainstream technologies of physical layer security were summarized and the relevant technical indicators were introduced; Then, the research on physical layer security in three typical scenarios of the space-integrated-ground information network was summarized; Finally, problems need to be solved for the physical layer security of the three typical scenarios were proposed, and feasible schemes were discussed. Table and Figures | Reference | Related Articles | Metrics Select Design Conception and Simulation of Space Information Network Structure Based on Community Structure Zhongmin PEI, Lintao REN, Wei XIONG, Zhangkai LUO Space-Integrated-Ground Information Networks    2020, 1 (2): 81-86.   DOI: 10.11959/j.issn.2096-8930.20200211 Abstract （192）   HTML （17）    PDF（pc） （1501KB）（116）       Knowledge map    Save Focusing on the integrated development of satellite business, based on the idea of clustering and complex network theories and methods, a design concept of space information network structure based on community structure was proposed and a virtual network with 237 nodes in 6 communities was generated with STK software.Serval static parameters such as degree distribution, betweenness, and clustering coeffi cient in the network were analyzed.The connection rules and structural characteristics of the space information network were revealed. Table and Figures | Reference | Related Articles | Metrics Select Network Planning Method and Simulation Analysis for Large-Scale Low Earth Orbit Satellite Constellation Networks Lixiang LIU, Shuaijun LIU Space-Integrated-Ground Information Networks    2020, 1 (2): 87-94.   DOI: 10.11959/j.issn.2096-8930.20200212 Abstract （436）   HTML （49）    PDF（pc） （1712KB）（436）       Knowledge map    Save Thanks to the advantages of global coverage, high capacity and low latency, the large-scale LEO satellite constellation networks has become a hot spot for global development.However, planning methods and simulation modeling research for LS-LEOSCN has not been well studied.This paper focused on the following two issues, namely how to evaluate a given LSLEOSCN, and how to design or optimize a constellation network.Three key indicators for evaluating the performance of LSLEOSCN were established, namely network coverage (CT), system throughput (ST) and round-trip time (RTT).Further, the satellite constellation deployment (SCD), gateway station deployment (GSD) were analyzed and designed in the integrated network evaluation and planning (NEaP) platform for LS-LEOSCN.The simulation results showed that the designed NEaP platform could support the development of LS-LEOSCN evaluation and planning. 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