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International Symposium on Wireless Personal Multimedia Communications (WPMC)

作者： Yu Huang Liang Jin Kaizhi Huang Lu Liu Xiaolei Kang National Digital Switching System Engineering and Technological R&D Center Zhengzhou P.R. China

ISBN: (纸本)9781509053773

The simple structure of compressed sensing (CS) lead to low complexity encryption, which is fascinating for nodes with limited resources in the wireless network. In this paper, we analyze the performance of the encryption method based on compressed sensing, and prove that the encryption can achieve the information theory security. The effect of the sparsity and the signal noise ratio (SNr) on the encryption method are explored. The security and robustness of the encryption method are analyzed by a passive eavesdropper and an active attacker. Under the rayleigh fading channels, simulation results show that the security performance of the encryption increases as the sparsity decreases, and the SNr increases. In addition, the encryption approach is valid in preventing access from an active attacker based on the computation attack, which is consistent with the theory analysis.

关键词： Encryption Sensors Sparse matrices Wireless sensor networks Compressed sensing Wireless communication Communication system security

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A Novel Communication Mechanism Based on Node potential Multi-path routing

A Novel Communication Mechanism Based on Node potential Mult...

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International Symposium on Optoelectronic technology and Application 2016(OTA 2016)——Conf.15 Optical Communication and Optical Network

作者： Youjun Bu Chuanhao Zhang YiMing Jiang Zheng Zhang National Digital Switching System Engineering& Technological R&D Center Railway Police College

Withthe network scales rapidly and new network applications emerge frequently, bandwidth supply for today’s Internet could not catch up with the rapidincreasing requirements. Unfortunately, irrational

ISBN: (纸本)9781510607743

关键词： multi-path loop-free routing traffic engineering resource allocation multi-path Traffic engineering resource utilization traffic network Network routing network applications network links Web resources

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Structural measures of clustering quality on graph samples

Structural measures of clustering quality on graph samples

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International Conference on Advances in Social Network Analysis and Mining, ASONAM

作者： Jianpeng Zhang Yulong Pei George H. L. Fletcher Mykola Pechenizkiy Eindhoven University of Technology Eindhoven the Netherlands National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

ISBN: (纸本)9781509028474

due to the growing presence of large-scale and streaming graphs such as social networks, graph sampling and clustering play an important role in many real-world applications. One key aspect of graph clustering is the evaluation of cluster quality. However, little attention has been paid to evaluation measures for clustering quality on samples of graphs. As first steps towards appropriate evaluation of clustering methods on sampled graphs, in this work we present two novel evaluation measures for graph clustering called δ-precision and δ-recall. These measures effectively reflect the match quality of the clusters in the sampled graph with respect to the ground-truth clusters in the original graph. We show in extensive experiments on various benchmarks that our proposed metrics are practical and effective for graph clustering evaluation.

关键词： Measurement Clustering algorithms Benchmark testing Partitioning algorithms Algorithm design and analysis Social network services Color

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Efficient protocol design for device-to-device communication in ultra dense networks

Efficient protocol design for device-to-device communication...

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IEEE International Symposium on Intelligent Signal Processing and Communication systems (ISPACS)

作者： Baofeng Ji Yidan Wang Bingbing Xing Yi Wang Kang Song Chunguo Li rui Zhao Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China School of Information Science and Engineering Southeast University Nanjing China College of Information Engineering Henan University of Science and Technology Luoyang China School of Electronics and Communication Engineering Zhengzhou University of Aeronautics Zhengzhou China China National Digital Switching System Engineering Technological R&D Center Zhengzhou China School of Electronic and Information Engineering Qingdao University Qingdao China College of Information Science and Engineering Huaqiao University Xiamen China

Focused on the requirement of Gigabit level throughput of 5G networks, two typical backhaul solutions in ultra-dense networks architectures are investigated. Moreover, an efficient protocol scheme was designed for device-to-device communication in ultra-dense networks on the basis of the two backhaul network architectures. The different devices can implement communication directly through multi-hop relay without macro base stations forwarding. Additionally, according to the characteristics of millimeter-wave coverage in ultra-dense networks, the paper presents the millimeter-wave dynamic bandwidth improvement mechanism of multi-user communication. Simulation results show that the effectiveness of the proposed scheme and correctness of the protocol analysis compared with the traditional mechanism, which can be seen that the proposed scheme improve the bit error rate (BEr) performance effectively.

关键词： Bandwidth Throughput Computer architecture Millimeter wave communication Microprocessors Protocols

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SdN-based Path Hopping Communication against Eavesdropping attack

SDN-based Path Hopping Communication against Eavesdropping a...

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International Symposium on Optoelectronic technology and Application 2016(OTA 2016)——Conf.15 Optical Communication and Optical Network

作者： Chuanhao Zhang Zheng Zhao Youjun Bu Railway Police College National Digital Switching System Engineering & Technological R&D Center Zhengzhou Science and Technology Institute

Network eavesdropping is one of the most popular meansused by cyber attackers, whichhas been a severe threat to network communication security. Attackers could capture and analyze network communicatio

ISBN: (纸本)9781510607743

关键词： SdN Eavesdropping Moving Target defense (MTd) Path Hopping

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Baseband OFdM phase modulation system for visible light communication

Baseband OFDM phase modulation system for visible light comm...

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International Conference on Information Science and technology (ICIST)

作者： Gui-Teng Xie Hong-Yi Yu Yi-Jun Zhu National Digital Switching System Engineering &Technological R&D Center (NDSC) Henan (450000) China System Engineering &Technological R&D Center (NDSC) Henan China

In the visible light communication (VLC) orthogonal frequency-division multiplexing (OFdM) systems, the peak-to-average power ratio (PAPr) of OFdM signals is the primary concern of the transmission performance. In order to obtain low PAPr signals, we report and experimentally demonstrate a phase modulated OFdM system. The system can be reach 1.2Gbit/s under the standard illuminance level. And the bit-error ratio (BEr) of the received data is under 3.8 × 10 -3 , which is within the limit of common forward error correction (FEC) coding. The transmission distance can be reach 1.5m, which is the most remarkable in VLC OFdM systems.

关键词： Phase modulation Light emitting diodes Peak to average power ratio receivers Lighting

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The European reference Genome Atlas: piloting a decentralised approach to equitable biodiversity genomics

NPJ Biodiversity

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NPJ Biodiversity 2024年第1期3卷 28页

作者： Mc Cartney, Ann M. Formenti, Giulio Mouton, Alice de Panis, diego Marins, Luísa S. Leitão, Henrique G. diedericks, Genevieve Kirangwa, Joseph Morselli, Marco Salces-Ortiz, Judit Escudero, Nuria Iannucci, Alessio Natali, Chiara Svardal, Hannes Fernández, rosa de Pooter, Tim Joris, Geert Strazisar, Mojca Wood, Jonathan M. d. Herron, Katie E. Seehausen, Ole Watts, Phillip C. Shaw, Felix davey, robert P. Minotto, Alice Fernández, José M. Böhne, Astrid Alegria, Carla Alioto, Tyler Alves, Paulo C. Amorim, Isabel r. Aury, Jean-Marc Backstrom, Niclas Baldrian, Petr Baltrunaite, Laima Barta, Endre Bedhom, Bertrand Belser, Caroline Bergsten, Johannes Bertrand, Laurie Bilandija, Helena Binzer-Panchal, Mahesh Bista, Iliana Blaxter, Mark Borges, Paulo A. V. dias, Guilherme Borges Bosse, Mirte Brown, Tom Bruggmann, rémy Buena-Atienza, Elena Burgin, Josephine Buzan, Elena Cariani, Alessia Casadei, Nicolas Chiara, Matteo Chozas, Sergio Jr, Fedor Čiampor Crottini, Angelica Cruaud, Corinne Cruz, Fernando dalen, Love Biase, Alessiode delcampo, Javier delic, Teo dennis, Aliceb. derks, Martijn F. L. diroma, Maria Angela djan, Mihajla duprat, Simone Eleftheriadi, Klara Feulner, Philine G. d. Flot, Jean-François Forni, Giobbe Fosso, Bruno Fournier, Pascal Fournier-Chambrillon, Christine Gabaldon, Toni Garg, Shilpa Gissi, Carmela Giupponi, Luca Gomez-Garrido, Jessica González, Josefa Grilo, Miguel L. Grüning, Björn Guerin, Thomas Guiglielmoni, Nadege Gut, Marta Haesler, Marcel P. Hahn, Christoph Halpern, Balint Harrison, Peter W. Heintz, Julia Hindrikson, Maris Höglund, Jacob Howe, Kerstin Hughes, Graham M. Istace, Benjamin Cock, Mark J. Janžekovič, Franc Jonsson, Zophonias O. Joye-dind, Sagane Koskimäki, Janne J. Krystufek, Boris Kubacka, Justyna Kuhl, Heiner Kusza, Szilvia Labadie, Karine Lähteenaro, Meri Lantz, Henrik Lavrinienko, Anton Leclère, Lucas Lopes, ricardo Jorge Madsen, Ole Magdelenat, Ghislaine Magoga, Giulia Manousaki, Tereza Mappes, Tapio Marques, Joao Pedro redondo, Gemma I. Martinez Maumus, Florian McCarthy, Shane A. M Genomics Institute University of California SantaCruz CA United States TheVertebrate Genome Laboratory The Rockefeller University NewYork NY United States Department of Biology University of Florence Sesto Fiorentino Italy InBios-Conservation Genetics Laboratory University of Liege Liege Belgium Leibniz Institut für Zoo und Wildtierforschung Berlin Germany Berlin Center for Genomics in Biodiversity Research Berlin Germany Department of Biology University of Antwerp Antwerp Belgium Institute of Zoology University of Cologne Cologne Germany Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma Italy Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra Barcelona Spain Naturalis Biodiversity Center Leiden Netherlands Neuromics Support Facility VIB Center for Molecular Neurology VIB Antwerp Belgium Neuromics Support Facility Department of Biomedical SciencesUniversity ofAntwerp Antwerp Belgium Tree of Life WellcomeSanger Institute Cambridge Hinxton United Kingdom School of Biology and Environmental Science University College Dublin Belfield Ireland Aquatic Ecology & Evolution Institute of Ecology & Evolution University of Bern Bern Switzerland Department of Fish Ecology & Evolution Eawag Kastanienbaum Switzerland Department of Biological and Environmental Science University of Jyvaskyla Jyvaskyla Finland The EarlhamInstitute NorwichResearchPark Norwich United Kingdom Digital Science London United Kingdom Barcelona Supercomputing Center Spanish National Bioinformatics Institute ELIXIR Spain Getafe Spain Leibniz Institute for the Analysis of Biodiversity Change Museum Koenig Bonn Bonn Germany CE3C—Centre for Ecology Evolution and Environmental Changes & CHANGE—Global Change and Sustainability Institute Faculdade de Ciências Universidade de Lisboa Campo Grande Lisboa Portugal Centro Nacional de Análisis Genómico (CNAG) Barcelona Spain Universitat de Barcelona (UB) Barcelona Spain CIBIO Cen

A genomic database of all Earth’s eukaryotic species could contribute to many scientific discoveries;however, only a tiny fraction of species have genomic information available. In 2018, scientists across the world united under the Earth BioGenome Project (EBP), aiming to produce a database of highquality reference genomes containing all ~1.5 million recognized eukaryotic species. As the European node of the EBP, the European reference Genome Atlas (ErGA) sought to implement a new decentralised, equitable and inclusive model for producing reference genomes. For this, ErGA launched a Pilot Project establishing the first distributed reference genome production infrastructure and testing it on 98 eukaryotic species from 33 European countries. Here we outline the infrastructure and explore its effectiveness for scaling high-quality reference genome production, whilst considering equity and inclusion. The outcomes and lessons learned provide a solid foundation for ErGA while offering key learnings to other transnational, national genomic resource projects and the EBP. © The Author(s) 2024, corrected publication 2024.

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Energy Efficiency Analysis of Cellular Networks with Cooperative relays via Stochastic Geometry

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China Communications 2015年第9期12卷 112-121页

作者： Zhang Zhiwei Li Yunzhou Huang Kaizhi Zhou Shidong Wang Jing State Key Laboratory on Microwave and Digital Communications Tsinghua National Laboratory for Information Science and Technology Tsinghua University China National Digital Switching System Engineering and Technological R&D Center

Cooperative relaying is a promising technology that can improve the spectral and energy efficiency of cellular networks. However, the deployed relays consume a lot of energy and system resources. To improve the energy efficiency of the relay-assisted cellular networks, this paper considers the use of energy harvesting(EH) on relay nodes. A random sleeping strategy is also introduced in macro base stations(MBS) as a possible method to reduce energy consumption. In this paper, an analytical model is proposed to investigate the energy efficiency of cellular networks with EH relays and sleep mode strategy. Numerical results confirm a significant energy efficiency gain of the proposed networks comparing to the cellular networks with non-EH relays and MBSs without sleep mode strategy. The effects of the density and transmit power of MBSs on energy efficiency are also given through simulations.

关键词： cooperative relay energy efficiency stochastic geometry energy harvesting

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An Incentive Mechanism design View in Hybrid Access Control in Small Cell Networks

An Incentive Mechanism Design View in Hybrid Access Control ...

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IEEE Vehicular technology Conference

作者： Youming Sun Fenggang Sun Jinlong Wang Yuli Zhang Kailing Yao National Digital Switching System Engineering & Technological Research Center College of Communications Engineering PLA University of Science and Technology

ISBN: (纸本)9781509016990

In this paper, we investigate the hybrid access control in two-tier small cell networks from the perspective of incentive mechanism design, considering macro base station's private information. We formulate this problem as a Stackelberg game. To be specific, the macro base station (MBS) and small cell base stations (SBSs) are modeled as a leader with specific payoff preference and followers, respectively. A subsidy mechanism is adopted by MBS. Only when the SBS can provide acceptable service level for macro user (MUE), then MBS handovers MUE to SBS and provides subsidy to SBS;otherwise, MBS serves MUE by itself. We consider the impacts of MBS's private information on the final equilibrium of the proposed game. Theoretical analysis and simulation results show it is better for MBS to broadcast the private information to get more payoff from the perspective of incentive mechanism design.

关键词： mechanism design PPP1r12A gene main bang suppression STYrENE-BUTAdIENE-STYrENE BLOCK COPOLYMEr BASE STATION subsidy Perspective access control incentives Biological neural networks macro commands

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MU-MIMO aided secure transmission in cognitive downlink heterogeneous cellular networks

MU-MIMO aided secure transmission in cognitive downlink hete...

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International Symposium on Wireless Personal Multimedia Communications (WPMC)

作者： Xiaohui Qi Kaizhi Huang Zhihao Zhong National Digital Switching System Engineering & Technological Research Center Zhengzhou P. R. China

ISBN: (纸本)9781509053773

Cognitive heterogeneous cellular networks (CHCNs) and multi-user multiple-input multiple-output (MU-MIMO) are both promising technologies in the future network where wireless transmissions are inherently vulnerable to security breaches. Under an interference constraint set by the primary user, this study examines the impact of MU-MIMO technology on secure communication between cognitive base stations (BSs) and cognitive users (CUs) in downlink underlay CHCNs. First, based on stochastic geometry, we describe a CHCN model under a threshold-based protocols, and derive the expressions of the connection outage probability and achievable ergodic rate of the CUs. Second, the secrecy outage probability (SOP) of the CUs in the presence of non-colluding eavesdroppers as well as the lower bound of SOP for the CU in the presence of colluding eavesdroppers are given, respectively. Finally, the impacts of antenna system, eavesdropper density, eavesdropper case, and the received signal-to-interference-plus-noise-ratio threshold for security as well as reliability performance are analyzed, respectively.

关键词： Interference Copper Signal to noise ratio Wireless communication Security Communication system security Protocols

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