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ACM SIGCOMM 2006 - Conference on Applications, Technologies, Architectures, and Protocols for computer Communication

作者： Frei, Stefan May, Martin Fiedler, Ulrich Plattner, Bernhard Computer Engineering and Networks Laboratory ETH Zurich Switzerland

ISBN: (纸本)1595935711

The security level of networks and systems is determined by the software vulnerabilities of its elements. Defending against large scale attacks requires a quantitative understanding of the vulnerability lifecycle. Specifically, one has to understand how exploitation and remediation of vulnerabilities, as well as the distribution of information thereof is handled by *** this paper, we examine how vulnerabilities are handled in large-scale, analyzing more than 80,000 security advisories published since 1995. Based on this information, we quantify the performance of the security industry as a whole. We discover trends and discuss their implications. We quantify the gap between exploit and patch availability and provide an analytical representation of our data which lays the foundation for further analysis and risk management. Copyright 2006 ACM.

关键词： Intrusion detection

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Multi-hop network tomography: Path reconstruction and per-hop arrival time estimation from partial information 12

Multi-hop network tomography: Path reconstruction and per-ho...

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12th Joint International Conference on Measurement and Modeling of computer Systems, ACM SIGMETRICS/Performance 2012

作者： Keller, Matthias Beutel, Jan Thiele, Lothar Computer Engineering and Networks Laboratory ETH Zurich Switzerland

ISBN: (纸本)9781450310970

In the context of low-power wireless sensor networks, this paper presents multi-hop network tomography (MNT), a novel, non-intrusive algorithm for reconstructing the path, the per-hop arrival order, and the per-hop arrival time of individual packets at runtime. While explicitly transmitting this information over the radio would negatively impact the performance of the system under investigation, information is instead reconstructed after packets have been received at the sink. © 2012 Authors.

关键词： Wireless sensor networks

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Poster abstract: Mitigating erroneous wake-ups 15

Poster abstract: Mitigating erroneous wake-ups

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15th ACM Conference on Embedded Networked Sensor Systems, SenSys 2017

作者： Sutton, Felix Beutel, Jan Thiele, Lothar Computer Engineering and Networks Laboratory ETH Zurich Switzerland

ISBN: (纸本)9781450354592

We propose a novel method for mitigating erroneous wake-ups that are commonly associated with ultra-low power wake-up receivers. Recent research in low-power protocols has demonstrated significant improvements in energy-efficiency by employing ultra-low power wake-up receivers. However, due to the low-complexity receiver structures adopted, wake-up receivers are susceptible to external interference, which can cause the detection of non-existent wake-ups. The occurrence of these erroneous wake-ups wastes precious energy resources, thereby negating the potential energy savings in employing wake-up receivers. We address this challenging problem by extracting time-domain features from the output of the wake-up receiver, and construct a classifier to distinguish between correct and erroneous wake-ups. We describe the design of the proposed wake-up classifier and present preliminary results. © 2017 Association for Computing Machinery.

关键词： Potential energy

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Towards SDN Based Queuing Delay Estimation

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China Communications 2016年第3期13卷 27-36页

作者： MA Haiyan YAN Jinyao Panagiotis Georgopoulos Bernhard Plattner Faculty of Science and Technology Communication University of China Computer Engineering and Networks Laboratory Swiss Federal Institute of Technology Zurich (ETH Zurich)

As one of Qo S(Quality of Service) metrics, delay is critical important to delay sensitive applications, such as interactive video, network game and online surgery. In this paper, we exploit SDN(Software Defined Networking) advantages to solve delay Qo S problem. Our work mainly focuses on SDN based queuing delay estimation with real traffic and end-to-end delay control. First, we propose a queuing estimation model and extended it for end-to-end delay of the whole path. It is proved to be feasible and accurate with experimental results in SDN environment. Second, in order to demonstrate the use of our proposed model, we also implement an end-to-end delay control application in SDN. It fulfills specific delay Qo S requirements by dynamically switching flows to a suitable queue based on estimation results and delay requirements.

关键词： autonomic Qo S dynamic model delay performance SDN

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ARTIFICIAL INTELLIGENCE(AI)-DRIVEN SPECTRUM MANAGEMENT

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China Communications 2020年第2期17卷 I0001-I0003页

作者： Zan Li Zhiguo Ding Jia Shi Walid Saad Lie-Liang Yang the State Key Laboratory of Integrated Services Networks(ISN) School of Telecommunications EngineeringXidian University 不详 the State Key Laboratory of Integrated Services Networks(ISN) the Department of Electrical and Computer Engineering at Virginia Tech

Recent advances in communication and networking technologies are leading to a plethora of novel wireless services that range from unmanned aerial vehicle(UAV)communication to smart cognitive networks and massive Internet of Things(IoT)*** these emerging applications over the fifth generation(5G)of wireless cellular systems requires meeting numerous challenges pertaining to spectrum sharing and *** fact,most 5G applications will be highly reliant on intelligent spectrum management techniques,which should adapt to dynamic network environments while also guaranteeing high reliability and high quality-of-experience(QoE).

关键词： IoT spectrum guarantee

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Towards an intelligent photonic system

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Science China(Information Sciences) 2020年第6期63卷 80-96页

作者： Weiwen ZOU Bowen MA Shaofu XU Xiuting ZOU Xingjun WANG State Key Laboratory of Advanced Optical Communication Systems and Networks Intelligent Microwave Lightwave Integration Innovation Center (iMLic) Department of Electronic EngineeringShanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer Science Peking University

The emerging intelligence technologies represented by deep learning have broadened their applications to various fields. Beyond the conventional electronics-based processing systems, the convergence of photonics and artificial intelligence(AI) technology enhances the performance and learning ability of AI. In this review, we propose the concept of an intelligent photonic system(IPS), illustrating it as a developing architecture with three different versions. For each version of IPS, we review several representative *** we discuss the challenges towards an IPS and provide some prospects for the future development.

关键词： intelligent photonic system deep learning artificial intelligence optical neural network neuromorphic photonics

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Quantum qubit-optical cavity node: Effects of the temperature and coupling strengths on the cavity Fock-state distribution occupation probability and entropy of the subsystems using Dicke model

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Results in Physics 2025年 72卷

作者： Barhoumi, Mohamed Bassoli, Riccardo Fitzek, Frank H.P. Laboratory of Condensed Matter and Nanosciences (LMCN) Department of Physics Faculty of Sciences of Monastir University of Monastir Environment Street Monastir 5019 Tunisia Institut Supérieur d'Informatique et de Mathématiques de Monastir (ISIMM) University of Monastir Avenue de la Corniche Monastir 5000 Tunisia Deutsche Telekom Chair of Communication Networks Institute of Communication Technology Faculty of Electrical and Computer Engineering Technische Universität Dresden Dresden Germany Centre for Tactile Internet with Human-in-the-Loop (CeTI) Cluster of Excellence Dresden Germany Quantum Communication Networks (QCNets) research group Institute of Communication Technology Faculty of Electrical and Computer Engineering Technische Universität Dresden Dresden Germany

One of the most attractive systems for scalable quantum processing is the trapped atom in the optical cavity, which is easily manipulable with lasers. The qubit cavity system represents an attractive structure for quantum optics, with possibilities for applications in quantum detecting, quantum computation, and quantum communication. In addition, the investigation of the cavity-atom system under temperature is a fundamental concept in quantum optics and quantum information science. Here we continue in this quantum way, investigating different qubit(s)-cavity systems (where we increase the numbers of the qubit inside the optical cavity from one to four). Using the Dicke model, we calculate the probability of occupation of the ground state of the cavity 〈aˆ^†aˆ〉 and the expectation values 〈J_z〉 for each system. We find that these probabilities increase as the coupling strength C_s increases. This leads to reaching the ultra-strong coupling regime, which depends on the number of qubits. To describe the quantum state, we examine the cavity Wigner function WF as a function of the coupling strength C_s. Under the same parameters (e.g. C_s and the dissipation rates), we find that the separation of the quantum state in the WFs representation is different from one system to another. Furthermore, since understanding these kinds of systems is very important in order to improve the quantum network system, we study the entropy S of the subsystems (such as S of qubit) in each system. Also, we move beyond by studying the effect of the temperature on the Fock-state distribution occupation probability and entropy of the subsystems. Our results present another step to understanding the qubit(s)-cavity interaction to improve the performance of future quantum networks based on this system. Where the interplay between temperature, coupling strengths, and the Fock-state occupation probabilities contributes significantly to the understandi

关键词： Cavity Dicke model Quantum communication networks Quantum nodes Quantum state Qubit Qubit–cavity system Temperature

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Secure Two-Party Distance Computation Protocol Based on Privacy Homomorphism and Scalar Product in Wireless Sensor networks

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Tsinghua Science and Technology 2016年第4期21卷 385-396页

作者： Haiping Huang Tianhe Gong Ping Chen Reza Malekian Tao Chen Nanjing University of Posts and Telecommunications Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Department of Electrical Electronic and Computer EngineeringUniversity of Pretoria

Numerous privacy-preserving issues have emerged along with the fast development of the Internet of Things. In addressing privacy protection problems in Wireless Sensor networks （WSN）, secure multi-party computation is considered vital, where obtaining the Euclidian distance between two nodes with no disclosure of either side＇s secrets has become the focus of location-privacy-related applications. This paper proposes a novel Privacy-Preserving Scalar Product Protocol （PPSPP） for wireless sensor networks. Based on PPSPP, we then propose a Homomorphic-Encryption-based Euclidean Distance Protocol （HEEDP） without third parties. This protocol can achieve secure distance computation between two sensor nodes. Correctness proofs of PPSPP and HEEDP are provided, followed by security validation and analysis. Performance evaluations via comparisons among similar protocols demonstrate that HEEDP is superior; it is most efficient in terms of both communication and computation on a wide range of data types, especially in wireless sensor networks.

关键词： secure two-party computation privacy-preserving wireless sensor networks scalar product distancecalculation privacy homomorphism

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Platform synthesis and partitioning of real-time tasks for energy efficiency

Platform synthesis and partitioning of real-time tasks for e...

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作者： Chen, Jian-Jia Thiele, Lothar Germany Computer Engineering and Networks Laboratory ETH Zurich Switzerland

Energy-efficient and power-aware designs have played important roles in modern computing systems to reduce the power bills for server systems or prolong the lifetime of embedded devices. Moreover, systems with multiple heterogeneous processing units have been widely adopted to enhance the computing capability or reduce the power consumption. This work explores how to synthesize a heterogeneous multiprocessor platform or select processing units with the partitioning of real-time tasks so that the energy consumption is minimized. Given a set of processing unit types, characterized by the power consumption for maintaining activeness and executing jobs, this paper proposes an efficient and effective algorithm to allocate processing units with energy-efficient task partitioning. When the constraint on the numbers of allocated processing units is not specified, we show that the algorithm is with a (1+lnn)-approximation factor, in worst cases, for processing unit types with a variety of power consumption models, where n is the number of tasks. The approximation factor is asymptotically optimal for polynomial-time approximation algorithms unless P=NP. Moreover, we also present how to deal with specified maximal numbers of allocated processing units to minimize the energy consumption. Simulation results show that the proposed algorithm is effective for energy consumption minimization. © 2010 Elsevier B.V. All rights reserved.

关键词： Energy efficiency

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Demo abstract: A testbed for long-range lora communication 18

Demo abstract: A testbed for long-range lora communication

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18th ACM/IEEE International Conference on Information Processing in Sensor networks, IPSN 2019

作者： Trüb, Roman Da Forno, Reto Gsell, Tonio Beutel, Jan Thiele, Lothar Computer Engineering and Networks Laboratory ETH Zurich Zurich Switzerland

ISBN: (纸本)9781450362849

Designing and testing low-power wireless communication protocols often requires experimental deployments on real hardware in realistic settings. Infrastructure testbeds have the advantage that they allow reproducible results using different network configurations. However, most testbeds are either in- or outdoor only and do not span long and short ranges at the same time. In this work, we present an extension to the popular FlockLab testbed on a campus-scale in order to better support testing of long-range communciation, for example using the LoRa modulation. Different to existing LoRa test networks where specific protocol layers are fixed, we support custom modification above the physical hardware (above PHY) which allows the development and testing of alternative full custom MAC layers that are not based on LoRaWAN. © 2019 Copyright held by the owner/author(s).

关键词： Testbeds

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