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检索条件"任意字段=8th IEEE International Conference on Distributed Computing in Sensor Systems, DCOSS 2012"

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Inherent security benefits of analog network coding for the detection of byzantine attacks in multi-hop wireless networks

Inherent security benefits of analog network coding for the ...

引用

8th ieee international conference on Mobile Ad-hoc and sensor systems, MASS 2011

作者： Pandit, Vaibhav Jun, Jung Hyun Agrawal, Dharma P. School of Computing Sciences and Informatics Center for Distributed and Mobile Computing University of Cincinnati Cincinnati OH 45221-0030 United States

ISBN: (纸本)9780769544694

Modern multi-hop wireless networks employ a number of sophisticated schemes to secure the network against hostile attacks. However, constant improvements in any security mechanism is matched by ever increasing sophisticated attacks. therefore, there is a constant need to develop innovative schemes, especially for applications where the integrity of the message is vital. Attacks from trusted byzantine nodes that belong to the network itself are particularly challenging, as these nodes have a hidden malicious component and have complete access to the network resources. Previous works have studied these attacks and countermeasures for multi-hop networks and on networks capable of performing Network Coding. In this paper, we identify an inherent security benefit of Analog Network Coding and show how it can be used to design a novel Dual Non-adjacent Watchdog scheme that can detect a set of malicious byzantine attacks. © 2011 ieee.

关键词： Network coding

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Irida: A Real-Time Wireless sensor Network Visualization Feedback Protocol

Irida: A Real-Time Wireless Sensor Network Visualization Fee...

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international conference on distributed computing in sensor systems (dcoss)

作者： Marios Karagiannis Laetitia Dallinge Jose Rolim Centre Universitaire d'Informatique Geneva Switzerland

In this paper, we describe the implementation of a real time visualization and feedback system for Wireless sensor Network algorithms. the system is based on a fixed hardware test bed, which is deployed on a vertical flat surface and a feedback loop system that takes information about the current state of the network and projects this state, in a visual way, on the surface itself using a video projector. the protocol used is open and simple to use, and can be easily adapted for different hardware configurations. We call our system Irida.

关键词： Wireless sensor networks Protocols Visualization Data visualization Hardware Heart beat Wireless communication

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BTDFS: B+ Tree-Based distributed File Storing Mechanism for Improving Small File Storage 24

BTDFS: B+ Tree-Based Distributed File Storing Mechanism for ...

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24th ieee international conference on High Performance computing and Communications, 8th ieee international conference on Data Science and systems, 20th ieee international conference on Smart City and 8th ieee international conference on Dependability in sensor, Cloud and Big Data systems and Application, HPCC/DSS/SmartCity/DependSys 2022

作者： Zhang, Jingyu Tian, Jiachen Luo, Lailong School of Computer and Communication Engineering Changsha University of Science and Technology Changsha China School of Systems Engineering National University of Defense Technology Science and Technology on Information Systems Engineering Laboratory Changsha China

ISBN: (纸本)9798350319934

Hadoop is currently the most popular big data processing architecture, which provides a processing framework for managing and analyzing massive data. Hadoop distributed File System (HDFS) is the core component for storing data in the Hadoop systems. It performs well when storing and managing large-sized files. However, it shows extremely bad performance when dealing with a large number of small files, which is reflected in the consumption of a large amount of memory space of the NameNode node and the low efficiency of accessing small files. Archive file is proposed to solve this problem. It combines small files into larger merged files for storage, and uses index files to record the relevant information of small files in the merged files. However, archive files (e.g., Hadoop Archive, MapFile) all require additional processing and multiple I/O operations to obtain index information before actually accessing the file content, which reduces the efficiency of file access. this paper proposes a novel distributed file storing mechanism called B+ Tree-Based distributed File Storing mechanism (BTDFS), which combines a large number of small files into a merged file, records the index information of the small files in the merged file, and organizes the index information into a B+ tree for storage. Using BTDFS, while reducing the metadata consumption of the NameNode node, improves the access performance of a single small file with additional abilities, which provides convenience for analyzing a large number of small files. Finally, this paper designs corresponding experiments for the proposed BTDFS, and tests and analyzes the memory usage in N ameN ode and the access performance of small files. the experimental results show that the proposed BTDFS can effectively reduce the memory usage of the NameNode, and the efficiency of accessing small files is improved compared with state-of-the-art methods. © 2022 ieee.

关键词： Digital storage

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Work in Progress: Resourse-Aware Fault Localization in Large sensor Networks

Work in Progress: Resourse-Aware Fault Localization in Large...

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international conference on distributed computing in sensor systems (dcoss)

作者： Richard Mietz Kay Romer Institute of Computer Engineering University of Lübeck Lubeck Germany

sensor networks are exposed to hostile environments that may cause failures of single nodes and communication links which affect the whole network. Localizing the cause of the problem in space and time requires to collect diagnostic data from the network. Due to resource and energy constraints, however, it is not possible to continuously collect detailed diagnostic data from all nodes. We therefore propose an incremental approach where first data is logged to flash memory and later the user can pose a sequence of diagnostic queries with decreasing scope and increasing level of detail to pinpoint the cause of the problem.

关键词： Ash Wireless sensor networks Monitoring Delay Graphical user interfaces Data mining Memory management

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A programming model for context-aware applications in large-scale pervasive systems

A programming model for context-aware applications in large-...

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2012 ieee 8th international conference on Wireless and Mobile computing, Networking and Communications, WiMob 2012

作者： Sehic, Sanjin Li, Fei Nastic, Stefan Dustdar, Schahram Distributed Systems Group Information Systems Institute Vienna University of Technology Argentinierstrasse 8/184-1 A-1040 Vienna Austria

ISBN: (纸本)9781467314305

In recent years, new business and research opportunities have been increasingly emerging in the field of large-scale context-aware pervasive systems (e.g. pervasive health-care, city traffic monitoring, environmental monitoring, smart grids). these large-scale pervasive systems are characterized by the need to employ large number of context sources, process massive amounts of real-time context data, provide services to numerous context-aware applications, and cope with higher volatility of the environment. this paper proposes the Origins Model - a programming model for context-aware applications in large-scale pervasive systems. In the Origins Model, an origin is an abstraction of any source of context information. Origins are universal, discoverable, composable, migratable, and replicable components that are associated with type and meta-information. they create an adequate foundation for the development of context-aware applications. Based on them, four processing operations are defined in the Origins Model: filter, infer, aggregate, and compose. As such, these operations provide a powerful mechanism to express a rich set of processing schemes in context-aware applications. Based on the Origins Model, we present the Origins Toolkit - a proof-of-concept implementation developed using the Scala programming language and the Akka toolkit to provide a distributed, scalable, and fault-tolerant solution. © 2012 ieee.

关键词： Real time systems

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IWCMC 2012 - 8th international Wireless Communications and Mobile computing conference

IWCMC 2012 - 8th International Wireless Communications and M...

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8th ieee international Wireless Communications and Mobile computing conference, IWCMC 2012

ISBN: (纸本)9781457713781

the proceedings contain 207 papers. the topics discussed include: distributed collaborative beamforming with minimum overhead for local scattering environments;a new application level link aggregation and its implementation on android terminals;base stations locations optimization in an airport environment using genetic algorithms;a distributed DNS traffic monitoring system;real-time analysis of critical nodes in network cores;online anomaly detection by using N-gram model and growing hierarchical self-organizing maps;efficient resource allocation for wireless virtualization using time-space division;disease tracking service in urban areas;a generic cross-layer architecture for autonomic network management with network wide knowledge;constructing data gathering tree to maximize the lifetime of unreliable wireless sensor network under delay constraint;and cross device fingerprint-based positioning using 3D ray tracing.

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A Testing Framework for Discovering Vulnerabilities in 6LoWPAN Networks

A Testing Framework for Discovering Vulnerabilities in 6LoWP...

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international conference on distributed computing in sensor systems (dcoss)

作者： Abdelkader Lahmadi Cesar Brandin Olivier Festor LORIA Université de Lorraine Vandoeuvre-les-Nancy France Villers-les-Nancy France

In this work, we present the process of identifying potential vulnerabilities in 6LoWPAN enabled networks through fuzzing. the 6LowPAN protocol has been designed by the IETF as an adaptation layer of IPv6 for Low power and lossy networks. the fuzzing process is build upon the Scapy packets manipulation library. It provides different mutation algorithms to be applied on 6LoWPAN protocol messages to assess its implementations security and robustness. the protocol behaviors are described using an XML format to define different testing scenarios.

关键词： Protocols ieee 802.15 Standards XML Testing Engines Decoding Security

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An Antenna Selection Algorithm for TDOA Location Method in distributed Multi-Antenna System

An Antenna Selection Algorithm for TDOA Location Method in D...

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8th international conference on Wireless Communications, Networking and Mobile computing (WiCOM)

作者： Zhu, Xiaoxuan China Sci & Technol Exchange Ctr Minist Sci & Technol Beijing Peoples R China

ISBN: (纸本)9781612846835;9781612846828

Wireless location has received increasing attention in the last decade, and the introduction of distributed multi-antenna in 4G system has brought in extra information for high accuracy location. In this paper, a novel antenna selection algorithm in distributed multi-antenna system is proposed. By analyzing the least square error of TDOA location method and its relationship with locations of antennas utilized, factors are designed to indicate this relationship, and then we can find the most proper antennas to locate the MS. Simulation results show that the proposed antenna selection algorithm outperforms the traditional methods, which indicates our antenna selection algorithm can be applied in distributed multi-antenna systems effectively.

关键词： multi-antenna TDOA antenna selection location algorithm

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distributed Subspace Projection in Wireless sensor Networks Using Computational Codes

Distributed Subspace Projection in Wireless Sensor Networks ...

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international conference on distributed computing in sensor systems (dcoss)

作者： Xabier Insausti Pedro M. Crespo Baltasar Beferull-Lozano CEIT TECNUN University of Navarra Donostia San Sebastian Spain IRTIC Universidad de Valencia Paterna Valencia Spain

In this paper, we develop a new power-efficient algorithm for Wireless sensor Networks (WSN) in order to obtain, in a distributed manner, the Projection of an observed sampled spatial field on a subspace of lower dimension. this is an important problem that is motivated in various applications where there are well defined subspaces of interest (e.g. spectral maps in cognitive radios). As opposed to traditional Gossip Algorithms used for subspace projection assuming separation of channel coding and computation, our algorithm combines Computational Coding and a modification of existing Gossip Algorithms, achieving important savings in convergence time and yielding an exponential decrease in energy consumption as the size of the network increases.

关键词： Vectors Wireless sensor networks Convergence Master-slave Encoding Topology Algorithm design and analysis

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Battlefield-of-things and its Implications in Modern Day Battlefield 8

Battlefield-of-Things and its Implications in Modern Day Bat...

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8th ieee international conference on Computational Intelligence and computing Research (ieee ICCIC)

作者： Varghese, Vincent Nene, Manisha J. Def Inst Adv Technol Dept Comp Sci Pune Maharashtra India

ISBN: (纸本)9781509066216

the study in this paper accentuates the significant role of proliferation in communication, computation, and sensor technologies;and enumerates the paradigm shift in the battlefield environment where the objective is to win a decisive battle. the contribution of this paper is twofold. First, the concept of Battlefield-of-things (BoTs) is proposed. It integrates the utilisation of multi-layered system architecture for communication, remote deployments of manned-unmanned resources into a cohesive and coordinated fighting force. Second, to study & inter-relate the factors those affect the deployment of technology based on different dimensions in the battlefield;hierarchy and interpretation of distributed networks, its critical effect on decision making. the study states the implications of deployment of BoTs in a generic battlefield scenario. the paper concludes with the fact that the implications of deployment of BoTs has the potential to lead to faster and effective decision making, while enabling the dominance in Command, Control, Intelligence, Surveillance, Targeting, Acquisition;and Reconnaissance (C4ISTAR) with superiority in battlefield management. the future work urges the research community with the challenges envisaged.

关键词： Battlefield-of-things battlefield management wireless sensor networks computational intelligence cyber physical systems situational awareness(SA) OODA loop C4ISTAR

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