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Detection and Localization sensor Assignment with Exact and Fuzzy Locations

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5th ieee international conference on distributed computing in sensor systems

作者： Rowaihy, Hosam Johnson, Matthew P. Pizzocaro, Diego Bar-Noy, Amotz Kaplan, Lance La Porta, Thomas Preece, Alun Penn State Univ Dept Comp Sci & Engn University Pk PA 16802 USA CUNY Grad Ctr Dept Comp Sci New York NY 10017 USA Cardiff Univ Sch Comp Sci Cardiff CF10 3AX S Glam Wales US Army Res Lab Adelphi MD 20783 USA

ISBN: (纸本)9783642020841

sensor networks introduce new resource allocation problems in which sensors need to be assigned to the tasks they best help. Such problems have been previously studied in simplified models in which utility from multiple sensors is assumed to combine additively. In this paper we study more complex utility models, focusing on two particular applications: event detection and target localization. We develop distributed algorithms to assign directional sensors of different types to multiple simultaneous tasks using exact location information. We extend our algorithms by introducing the concept of fuzzy location which may be desirable to reduce computational overhead and/or to preserve location privacy. We show that our schemes perform well using both exact or fuzzy location information.

关键词： Location

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Secure wireless multimedia sensor networks: A survey

Secure wireless multimedia sensor networks: A survey

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3rd international conference on Mobile Ubiquitous computing, systems, Services, and Technologies, UBICOMM 2009

作者： Grieco, Luigi Alfredo Boggia, Gennaro Sicari, Sabrina Colombo, Pietro Dipartimento di Elettrotecnica ed Elettronica Politecnico di Bari Bari Italy Dipartimento di Informatica e Comunicazione Università degli studi dell'Insubria Varese Italy

ISBN: (纸本)9780769538341

Wireless Multimedia sensor Networks (WMSNs) are used in many application domains, such as surveillance systems, telemedicine and so on. In order to ensure a broad deployment of such innovative services, strict requirements on security, privacy, and distributed processing of multimedia contents should be satisfied, taking also into account the limited technological resources (in term of energy, computation, bandwidth, and storage) of sensor nodes. Thus, with respect to classic Wireless sensor Networks, the achievement of these goals is more challenging due to the presence of multimedia data, which usually requires complex compression and aggregation algorithms. In order to provide a unifying synthesis on the last achievements, this survey summarizes the main findings on secure WMSNs proposed in the literature and forecasts future perspectives of such a technology. © 2009 ieee.

关键词： Surveys

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LSAP: Low storage authentication protocol for cluster-based wireless sensor networks

LSAP: Low storage authentication protocol for cluster-based ...

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2009 international conference on Cyber-Enabled distributed computing and Knowledge Discovery, CyberC '09

作者： Chen, Zhikui Shao, Zhuang Huang, Xiaodi Liu, Yang Software School Dalian University of Technology Dalian Liaoning China School of Busmess and Information Technology Charles Sturt University Australia

ISBN: (纸本)9781424452187

The cluster-based routing of wireless sensor networks (WSNs) requires secure, robust protocols for wireless communication. Unfortunately, existing protocols are unsuitable due to the limited storage space of nodes. Although symmetric-key-based solutions have been available, all of them suffer from possible severe attacks, and the problem of limited storage space. These issues are truly critical in WSNs. In this paper, a Low Storage Authentication Protocol (LSAP) is introduced to reduce the size requirement of authenticated keys, and thus to save the storage space. Moreover, security flaws are effectively avoided in the proposed protocol. Building upon a double-level key chain mechanism and Message Authentication Code (MAC), the proposed LSAP includes two authentication phases: Base Station-node (BS-node) broadcast, and cluster head-member node. A quantitative analysis demonstrates that our proposed approach can balance the requirements of security and storage space. © 2009 ieee.

关键词： Authentication

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Precision time synchronization using ieee 1588 for wireless sensor networks

Precision time synchronization using IEEE 1588 for wireless ...

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7th ieee/IFIP international conference on Embedded and Ubiquitous computing, EUC 2009

作者： Cho, Hyuntae Jung, Jeonsu Cho, Bongrae Jin, Youngwoo Lee, Seung-Woo Baek, Yunju Dept. of Computer Engineering Pusan National University Busan Korea Republic of BcN Division NoC Technology Team ETRI Daejeon Korea Republic of

ISBN: (纸本)9780769538235

Wireless sensor networks are evolving from relatively undemanding applications to applications which have stronger requirements. The coordination of distributed entities and events requires time synchronization. Although a number of methods have been studied for WSNs, some applications require high precision time synchronization. Precision time synchronization enables a variety of extensions of applications. The ieee 1588 precision time protocol (PTP) provides a standard method to synchronize devices in a network with sub-microsecond precision. This paper deals with precision time synchronization using ieee 1588 over wireless sensor networks. Precision time synchronization using ieee 1588 provides compatibility between heterogeneous systems in WSNs. This paper also presents experiments and performance evaluation of precision time synchronization in WSNs. Our result established a method for nodes in a network to maintain their clocks to within a 200 nanosecond offset from the reference clock of a master node. © 2009 ieee.

关键词： sensor nodes

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CyberC 2009 - international conference on Cyber-Enabled distributed computing and Knowledge Discovery

CyberC 2009 - International Conference on Cyber-Enabled Dist...

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2009 international conference on Cyber-Enabled distributed computing and Knowledge Discovery, CyberC '09

ISBN: (纸本)9781424452187

The proceedings contain 70 papers. The topics discussed include: an adaptive rate control mechanism for congestion avoidance in wireless body area networks;a new attribute reduction algorithm dealing with the incomplete information system;an effective multi-classifier strategy for attributes matching in heterogeneous databases;the application of the data mining based on adaptive immune algorithm for power transformer fault diagnosis;a novel cross layer design approach for video transmission over wireless ad hoc networks;exponential random geometric graph process models for mobile wireless networks;the implementation and performance analysis of mobile multicast in WLAN environments;time synchronization with fast asynchronous diffusion in wireless sensor network;towards service composition middleware embedded in web browser;and secure mobile agent protocol by using signcryption schemes.

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D-bridge: A platform for developing low-cost WSN product solutions

D-bridge: A platform for developing low-cost WSN product sol...

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6th international conference on Networked Sensing systems, INSS2009

作者： Gordon, Dawud Beigl, Michael Distributed and Ubiquitous Computing Technical University of Braunschweig Germany

ISBN: (纸本)9781424463145

Today the construction of wireless sensing systems requires the use of rather high-priced pieces of hardware and the assembly of these hardware parts (wireless transmission core, sensor module, gateway device), as well as the implementation of the according software (sensor mote software, gateway software, end user software). This makes overall development and the thereby resulting product costly in terms of both time and money. With the D-Bridge concept that we present in this paper we will show an approach that is much cheaper than any other solution in terms of hardware and development costs. This D-Bridge is a combination of a gateway between the wireless sensor network and the IP network which also includes a Web-based application server at the wireless sensor network appliance's location. ©2009 ieee.

关键词： sensor nodes

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Performance of Bulk Data Dissemination in Wireless sensor Networks

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5th ieee international conference on distributed computing in sensor systems

作者： Dong, Wei Chen, Chun Liu, Xue Bu, Jiajun Liu, Yunhao Zhejiang Univ Coll Comp Sci Zhejiang Key Lab Serv Robots Hangzhou Zhejiang Peoples R China McGill Univ Sch Comp Sci Montreal PQ H3A 2T5 Canada Hong Kong Univ Sci & Technol Dept Comp Sci Kowloon Peoples R China

ISBN: (纸本)9783642020841

Wireless sensor networks (WSNs) have recently gained a great deal of attention as a topic of research, with a wide range of applications being explored. Bulk data dissemination is a basic building block for sensor network applications. The problem of designing efficient bulk data dissemination protocols has been addressed in a number of recent studies. The problem of mathematically analyzing the performance of these protocols, however, has not been addressed sufficiently in the literature. In this work, we show a way of analyzing mathematically the performance of bulk data dissemination protocols in WSNs. Our model can be applied to general networks by use of the shortest propagation path. Our model is accurate by considering topological information, impact of contention, and impact of pipelining. We validate the analytical results through detailed simulations, and we find the analytical results fit well with the simulation results. Further, we demonstrate that the analytical results can be used to aid protocol design for performance optimizations, e.g., page size tuning for shortening the completion time.

关键词： Wireless sensor networks

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Mote-Based Online Anomaly Detection Using Echo State Networks

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5th ieee international conference on distributed computing in sensor systems

作者： Chang, Marcus Terzis, Andreas Bonnet, Philippe Univ Copenhagen Dept Comp Sci Copenhagen Denmark Johns Hopkins Univ Dept Comp Sci Baltimore MD 21218 USA

ISBN: (纸本)9783642020841

sensor networks deployed for scientific data acquisition must inspect measurements for faults and events of interest. Doing so is crucial to ensure the relevance and correctness of the collected data. In this work we unify fault and event detection under a general anomaly detection framework. We use machine learning techniques to classify measurements that resemble a training set as normal and measurements that significantly deviate from that set as anomalies. Furthermore, we aim at an anomaly detection framework that can be implemented on motes, thereby allowing them to continue collecting scientifically-relevant data even in the absence of network connectivity. The general consensus thus far has been that learning-based techniques are too resource intensive to be implemented on mote-class devices. In this paper, we challenge this belief We implement an anomaly detection algorithm using Echo State Networks (ESN), a family of sparse neural networks, on a mote-class device and show that its accuracy is comparable to a PC-based implementation. Furthermore, we show that ESNs detect more faults and have fewer false positives than rule-based fault detection mechanisms. More importantly, while rule-based fault detection algorithms generate false negatives and misclassify events as faults, ESNs are general, correctly identifying a wide variety of anomalies.

关键词： Anomaly detection Real-time Wireless sensor Networks

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Automated and Holistic Design of Intelligent and distributed Integrated sensor systems with Self-x Properties for Applications in Vision, Robotics, Smart Environments, and Culinary Assistance systems

Automated and Holistic Design of Intelligent and Distributed...

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15th international conference on Neuro-Information Processing

作者： Koenig, Andreas TU Kaiserslautern Inst Integrated Sensor Syst D-67663 Kaiserslautern Germany

ISBN: (纸本)9783642030390

The ongoing advance in micro technologies gives rise to increasingly versatile and capable sensors as well as unprecedented computational power and communication options in diminishing scale. The notion of smart dust summarizes ubiquitous computing and sensing application systems, which can serve for local as well as global information acquisition and decision making. For off-the-shelf-nodes, and even more for dedicated physical designs, the system design process becomes increasingly challenging and potentially intractable. Automated design methods emerging for intelligent systems are introduced as a remedy. These considerations will be extended to variations, that multiple system instances have to face in real-world applications and potential compensation by incorporation of self-x properties. These concepts are elucidated for the case of reconfigurable and evolvable sensor electronics. Finally, an application perspective of the presented approach for integrated distributed sensing in home automation, assisted living, and in particular, smart kitchen applications, denoted as culinary assistance systems will be presented.

关键词： Ubiquitous computing

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Energy-efficient deployment of distributed mobile sensor networks using fuzzy logic systems

Energy-efficient deployment of distributed mobile sensor net...

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international conference on Advances in computing, Control and Telecommunication Technologies, ACT 2009

作者： Mathur, Rahul Sharma, Manoj Kumar Misra, Abhinav Baveja, Deep University Institute of Engineering and Technology Panjab University Chandigarh India

ISBN: (纸本)9780769539157

Deterministic deployment of distributed sensor networks (DSNs) is sometimes impractical in situations where a global map of the environment is either unavailable or of little use because the environment is dynamic or hostile. One way to deal with such situations is to randomly scatter sensor nodes in the area of interest. However, the deployment carried out in such a way is generally far from optimal and the resulting uneven node topology can lead to poor utilization of the available sensors and a short network lifetime. This paper proposes an energy-efficient self-organizing technique based on fuzzy logic systems (FLSs) for enhancing the coverage of a DSN after an initial random placement of sensors. Fuzzy logic has been applied previously to the deployment of DSNs and was successful to overcome most of the limitations of other algorithms. However, sensor's present remaining energy level was not considered in decision making and therefore the method was not very power-aware. Since the self-deployment process is very energy consuming and energy is the main operating constraint, it is necessary to utilize the limited energy of each sensor in a relatively fair fashion. Simulation results show that our approach not only achieves a fast and stable deployment that maximizes coverage but also optimizes the overall energy consumption during deployment, thereby prolonging the lifespan of the network. © 2009 ieee.

关键词： Energy efficiency

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