Secrecy analysis for orthogonal time frequency space technique based LEO satellite communication by Zan LI, Junfan HU, Bing LI, Jia SHI, Jiangbo SI

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Research on Performance of Covert Wireless Communication over Uplink LEO Satellite-Terrestrial Network by ZENG Shulei, CAO Bin

Subjects: “…LEO satellite communication network…”
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Security decision method for the edge of multi-layer satellite network based on reinforcement learning by Peiliang ZUO, Shaolong HOU, Chao GUO, Hua JIANG, Wenbo WANG

Subjects: “…multi-layer satellite network…”
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Architecture Design and Key Technologies Analysis of LEO Satellite Mega-Constellations by Zihe GAO, Haipeng YAO, Lei ZHANG, Yulin SHI, Fu WANG, Ying TAO

“…The large number of network elements in the mega-constellations pose a severe challenge to the existing network architecture and technical system.Based on the concept and characteristics of constellation architecture, combined with the development of domestic and foreign satellite constellations and technology prediction, a multi-layer and multi-domain hybrid intelligent cooperative network architecture was proposed, which consist of four layers (perception plane, data plane, control plane, intelligent management plane) and three layers (resource layer, transport layer, service layer) , the architecture of constellation network management and control, technology reference model and protocol architecture were designed.At the same time, accorded to the construction and development trend of constellation, this paper expounded and analyzed the evolution trend of the key technologies, such as constellation network addressing and routing, network robust agile guarantee, differentiated service bearing, end-to-end reliable transmission, etc.The research results could support the development and construction of LEO giant constellation network in our country.…”
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Implementation Method of GEO and LEO Satellite Tracking Compatible Flat-Plate Antenna by Jian CHEN, Zhengqian ZHANG, Xinsheng MA, Ting CHAO, Gangtao GUO

“…In order to improve the portability, disassembly and usability of the satellite communication antenna products in the fi eld, a GEO and LEO satellite tracking compatible fl at-plate antenna implementation method was proposed, the micro strip array antenna was integrated with the radio frequency channel, and the radio frequency of the antenna was fl at and integrated, combined with the high density multi-layer vertical interconnection technology, the whole machine was small in size, light in weight and low in power consumption, and the tracking control unit could satisfi ed the requirements of GEO Beacon and carrier tracking, also could satisfi ed the LEO analysis and the program guidance tracking.The antenna did not need manual assembly and disassembly, and could be used for satellite communication with onebutton deployment.high-precision tracking and stable communication could be achieved for GEO, MEO and LEO satellite.…”
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Network Simulation of Low Earth Orbit Satellite Communication System Based on SNS3 by WU Fengwei, LIU Chuan, SHANG Dan, GENG Min

“…On the basis of SNS3, by constructing an accurate satellite orbit model, physical layer link model and network protocol model, an antenna model suitable for LEO satellite communication system was proposed and designed, and a network simulation platform suitable for low-orbit satellite communication was built, which realized the comprehensive simulation of low-orbit satellite communication network. …”
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Manual 2009 de los Reglamentos del Empleo que Regulan a los Empleadores y Trabajadores Agrícolas de Florida: Ley del Derecho-a-Saber [Estatal] by Fritz Roka, Michael Olexa, Katherine Smallwood, Leo Polopolus, Carol Fountain

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Manual 2009 de los Reglamentos del Empleo que Regulan a los Empleadores y Trabajadores Agrícolas de Florida: Ley del Derecho-a-Saber [Estatal] by Fritz Roka, Michael Olexa, Katherine Smallwood, Leo Polopolus, Carol Fountain

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A Critical Review on the Book Islamic Political Philosophy in West by Mohammad Hossein Badamchi

“…This hidden agenda of the book deviates its interpretation of Leo Strauss’s reading of Alfarabi and evaluation of other Western studies of Islamic political philosophy.…”
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Efficient authentication scheme for double-layer satellite network by Hui ZHU, Heng WU, Haiqiang ZHAO, Yuqing ZHAO, Hui LI

“…To solve the issue of networking authentication among GEO and LEO satellites in double-layer satellite network,a secure and efficient authenticated key agreement scheme was proposed.Based on symmetric encryption,the proposed scheme can achieve trust establishment and secure communication between satellites without the trusted third party.Meanwhile,considering characteristics of highly unified clock and predictable satellite trajectory in satellite networks,a pre-calculation method was designed,which can effectively improve the authentication efficiency of satellite networking.Moreover,formal proof and security analysis demonstrate that the scheme can satisfy various security requirements during satellite networking.Performance analysis and simulation results show that the scheme has low computation and communication overhead,which can achieve the authentication of satellite networking in resource-limited scenarios.…”
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Manual 2009 de los Reglamentos del Empleo que Regulan a los Empleadores y Trabajadores Agrícolas de Florida: Plan de Emergencia y el Derecho-a-Saber de la Comunidad [Estatal] by Fritz Roka, Michael Olexa, Katherine Smallwood, Leo Polopolus, Carol Fountain

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Manual 2009 de los Reglamentos del Empleo que Regulan a los Empleadores y Trabajadores Agrícolas de Florida: Plan de Emergencia y el Derecho-a-Saber de la Comunidad [Estatal] by Fritz Roka, Michael Olexa, Katherine Smallwood, Leo Polopolus, Carol Fountain

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The first-layer frescoes in the dome of the Rotunda of Saint George in Sofia by Zakharova Anna

“…The paper reviews the dating and meaning of the first-layer frescoes in Saint George Rotunda in Sofia. …”
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Design of double layer satellite constellation based on distributed satellite clusters by Ji JIANG, Mugen PENG, Wenbo WANG

“…Nowadays,the land communication system is unable to support the complex information needs,and realizing global seamless coverage and high capacity through space information network is anticipated.The existing satellite network is mainly composed of single satellite constellation,which absents the cooperation between the low earth orbit (LEO) satellites and geostationary orbit (GEO) satellites.A double-layer satellite constellation based on distributed satellite clusters was proposed,in which the infrastructure layer was composed of LEO satellites,the communication between LEO satellites was accomplished over inter-satellite links (ISL),and GEO satellites enhance the performance of coverage in low and middle latitudes.As simulation results show,the proposed approach can realize excellent global multiple coverage only relying on the deployment of satellite earth stations in China.…”
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Research on Wavelength Algorithm for Cross-Layer Routing in Software Defi ned Satellite Optical Network by Hai LI, Shanghong ZHAO, Yongjun LI, Cong PENG

“…In response to the difficulty of satellite network management and maintenance and the urgent need for large-capacity data transmission, a software-defi ned satellite optical network cross-layer wavelength routing algorithm based on ant colony algorithm (SDNCLRWA) was proposed.The algorithm took delay and available wavelength rate as heuristic functions, and designed a two-stage cross-layer wavelength routing mechanism to reduced routing hops and network congestion rate.First, it was routed in the LEO satellite single-layer network.The MEO satellite network was used for routing only when the routing fails or the routing hop count was too high.The simulation was carried out under the software-defi ned satellite optical network architecture and the results showed that the SDNCL-RWA algorithm proposed was better than the traditional Dijkstra+FF algorithm and the wavelength routing ant colony algorithm (ACO+FF) in terms of network blocking rate and average routing hops.…”
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Modelling Adhesive Using Non-Linear Truss Elements in Mode I Delamination Problems by Maedeh Ranjbar, Gordan Jelenić, Leo Škec

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Early Economic Evaluation Demonstrates That Noncomputerized Tomography Robotic-Assisted Surgery Is Cost-Effective in Patients Undergoing Unicompartmental Knee Arthroplasty at High-... by Leo M. Nherera, Sanjay Verma, Paul Trueman, Simon Jennings

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Adipocyte Atrophy Mimicking Signet Ring Cell Carcinoma of the Gallbladder by Benjamin van Haeringen, Leo Francis, Emily Olive, Daniel James

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The Data Artifacts Glossary: a community-based repository for bias on health datasets by Rodrigo R. Gameiro, Naira Link Woite, Christopher M. Sauer, Sicheng Hao, Chrystinne Oliveira Fernandes, Anna E. Premo, Alice Rangel Teixeira, Isabelle Resli, An-Kwok Ian Wong, Leo Anthony Celi

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Rethinking CIGS solar cells for rear illumination applications by Léo Choubrac, Fabien Pineau, Eugène Bertin, Ludovic Arzel, Nicolas Barreau

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