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检索条件"任意字段=5th IEEE International Conference on Distributed Computing in Sensor Systems"

共 5709 条记录，以下是4341-4350 订阅

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Fast, Seamless Rekeying In Wireless sensor Networks

Fast, Seamless Rekeying In Wireless Sensor Networks

引用

international conference on distributed computing systems Workshop

作者： Subir Biswas Md Mahbubul Haque Saeed Rashwand Jelena Misic Department of Computer Science University of Manitoba Winnipeg MAN Canada

We extend the probabilistic key-based approach for wireless sensor networks concerning the slow rekeying and path key reestablishment processes. By introducing a novel, energy efficient, distributed, and faster scheme, we attempt to replace the existing ordinary rekeying method of probabilistic key management scheme through a deterministic algorithm that works on both the base station and on each communicating pair of sensor nodes. the node predetermines the backup link key for a future key revocation and switches to the backup key when needed without further interrupting the base station or the key server. this scheme assures high level of security in rekeying operation, and at the same time reduces the rekeying cost very significantly.

关键词： Wireless sensor networks Base stations Data security Communication system control distributed computing conferences Computer science Energy efficiency Energy management Switches

来源：评论

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On the Connected k-Coverage Problem in Heterogeneous sensor Nets: the Curse of Randomness and Heterogeneity

On the Connected k-Coverage Problem in Heterogeneous Sensor ...

引用

ieee international conference on distributed computing systems

作者： Habib M. Amman John Giudici Wireless Sensor and Mobile Ad-Hoc Networks (WiSeMAN) Research Lab Department of Computer Science Hofstra University Hempstead NY 11549 USA

ISBN: (纸本)9781424444816

Coverage is an essential task in sensor deployment for the design of wireless sensor networks. While most existing studies on coverage consider homogeneous sensors, the deployment of heterogeneous sensors represents more accurately the network design for real-world applications. In this paper, we focus on the problem of connected k-coverage in heterogeneous wireless sensor networks. Precisely, we distinguish two deployment strategies, where heterogeneous sensors are either randomly or pseudo-randomly distributed in afield. While the first deployment approach considers a single layer of heterogeneous sensors, the second one proposes a multi-tier architecture of heterogeneous sensors to better address the problems introduced by pure randomness and heterogeneity.

关键词： Random Number Generators sensors Wireless sensor networks Coverage Heterogeneous sensor placement multi-tier deployment Network design one layer

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Protecting Neighbor Discovery Against Node Compromises in sensor Networks

Protecting Neighbor Discovery Against Node Compromises in Se...

引用

ieee international conference on distributed computing systems

作者： Donggang Liu iSec Laboratory CSE Department The University of Texas at Arlington

ISBN: (纸本)9781424444816

the neighborhood information has been frequently used by protocols such as routing in sensor networks. Many methods have been proposed to protect such information in hostile environments. However, these methods can only protect neighbor relations between benign nodes. A compromised node can easily circumvent them and setup false neighbor relations with sensor nodes in many places, impacting the network at a large scale. this paper presents a theoretic model for neighbor discovery in sensor networks and describes a fundamental security limitation and a generic attack against this model. the paper then proposes an efficient and localized solution based on a security property achievable during sensor deployment. this technique provides a threshold security guarantee in dealing with compromised sensor nodes. the analytical and simulation studies show that the technique is practical and effective for sensor networks.

关键词： sensor networks Neighbor sensor placement Ganglia Network routing

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A Robust Method for computing Truth-to-Track Assignments

A Robust Method for Computing Truth-to-Track Assignments

引用

12th international conference on Information Fusion

作者： Silbert, Mark NAVAIR Air 4 5 3 3 Patuxent River MD USA

ISBN: (纸本)9780982443804

Multi-sensor, multi-target tracking is the process of tracking one or more targets given periodic measurement reports of the target locations from one or more sensors. When there are many targets and/or the target density is high, this can be a complex problem. Because of the complexity, it is useful to measure how well the multi-target tracking system is performing. there are many ways to measure the performance but usually no one single measure can encompass the overall performance. Much work has been done on defining useful metrics such as tracking accuracy, track purity, and track continuity. Before any of these metrics can be applied, one must first determine the identity of the target tracks, i.e., the target being tracked by each track. Determining which track corresponds to which target is called the truth-to-track assignment problem. In the past, this assignment has been accomplished using local cost or global cost minimization techniques. While these techniques are useful when using real data, we will show that the assignments it produces can be less than ideal. In the cases where the measurement reports can be identified, such as in computer simulation, we will describe a much more powerful technique, called Report-Identity Based (RIB) assignment that is much more robust and objective. Furthermore, RIB assignment can be applied equally well to both report-to-track and track-to-track tracking systems. the paper will describe how it can be used for all types of tracking systems.

关键词： Multi-target tracking performance Multi-sensor tracking performance truth-to-track assignment report-identity based assignment data fusion tracking performance

来源：评论

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Serial distributed Detection Performance Analysis in Wireless sensor Networks under Noisy Channel

Serial Distributed Detection Performance Analysis in Wireles...

引用

international conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Liping Yin Ying Wang Dian-wu Yue College of Information Science and Technology Dalian Maritime University Dalian China National Mobile Communications Research Laboratory Southeast University Nanjing Nanjing China

In this paper, we consider the performance of serial distributed detection in wireless sensor networks (WSNs) under the assumption that the local decisions made by sensors are transmitted over noisy channels. Different from the parallel fusion, where the local results are directly sent to the fusion center, in serial fusion, local results are transmitted to the fusion center through multi-hop, short-range communications. We derive a fusion decision rule for serial signal detection, which takes the channel noise into account. And the simulation results show that the performance of serial distributed detection is inferior to that of parallel distributed detection, especially when the number of sensors is large. However, serial distributed detection utilizes short-range, multi-hop transmission, so it can be used as an energy-efficient distributed detection scheme for wireless sensor networks.

关键词： Performance analysis Wireless sensor networks sensor fusion Energy efficiency Relays sensor phenomena and characterization Educational institutions Information science Signal detection Spread spectrum communication

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2008 5th ieee international conference on Mobile Ad Hoc and sensor systems, MASS 2008

2008 5th IEEE International Conference on Mobile Ad Hoc and ...

引用

2008 5th ieee international conference on Mobile Ad-Hoc and sensor systems, MASS 2008

ISBN: (纸本)9781424425754

the proceedings contain 129 papers. the topics discussed include: data gathering capacity of large scale multihop wireless networks;progressive joint coding, estimation and transmission censoring in energy-centric wireless data gathering networks;towards a self-organizing stochastic-communications paradigm for wireless ad-hoc/sensor networks;a linear message distributed multicast algorithm with guaranteed directional communication lifetime in WANETs;moving multiple sinks through wireless sensor networks for lifetime maximization;the benefits of directional antennas in heterogeneous wireless ad-hoc networks;stateless and guaranteed geometric routing on virtual coordinate systems;cluster-based data transmission protocol in delay-tolerant mobile networks;and border landmark selection and applications in self-configurable wireless networks.

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distributed particle filtering for large scale dynamical systems

Distributed particle filtering for large scale dynamical sys...

引用

ieee international conference on Multi Topic

作者： Arash Mohammadi Amir Asif Department of Computer Science and Engineering York University Toronto ONT Canada

the paper proposes a near-optimal, distributed implementation of the particle filter for large scale dynamical systems with sparse measurements, as in wireless sensor networks (WSN) and power distribution systems. Compared to the centralized approach, the distributed implementation of the particle filter is computationally efficient and provides considerable transmission bandwidth savings due to a significant decrease in information exchange between the neighbouring nodes. In our test simulations, the performance of the distributed implementation is almost indistinguishable from the centralized particle filter.

关键词： Filtering Large-scale systems Particle filters Wireless sensor networks Power measurement Particle measurements Power distribution distributed computing Bandwidth Testing

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A Straightforward Path Routing in Wireless Ad Hoc sensor Networks

A Straightforward Path Routing in Wireless Ad Hoc Sensor Net...

引用

international conference on distributed computing systems Workshop

作者： Zhen Jiang Junchao Ma Wei Lou Jie Wu Computer Science Department West Chester University West Chester PA USA Department of Computing Hong Kong Polytechnic University Hong Kong China Department of Computer Science & Engineering Florida Atlantic University Boca Raton FL USA

Building a ldquostraightforwardrdquo path in wireless ad hoc sensor networks (WASNs) not only avoids wasting energy in detours, but also incurs less interference in other transmissions when fewer nodes are involved in the transmission. this plays an important role in recent WASN applications that require a streaming service to deliver large amount of data. In this paper, we extend our early work on the straightforward path routing in WASNs in the presence of the ldquolocal minimardquo, where the routing is blocked due to the lack of available forwarding successors. We bring some new insights of the safety information model for a forwarding routing that is limited in the request zone. A new routing is proposed to make a more intelligent decision in greedy advance and achieve more straightforward paths. the experimental results show substantial improvements of our approach compared with the best result known to date.

关键词： Wireless sensor networks Routing distributed computing Interference Safety USA Councils Computer networks Intelligent sensors conferences sensor systems

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Restructuring object-oriented distributed systems: An impact-driven approach

Restructuring object-oriented distributed systems: An impact...

引用

ieee international conference on Intelligent Computer Communication and Processing (ICCP)

作者： Dan C. Cosma Radu Marinescu Loose Research Group Politehnica University of Timişoara Romania

distributed applications address the needs of heterogeneous networks of human activities, therefore they must consist of balanced, relatively autonomous intercommunicating components. Unfortunately, real-world systems do often not follow these requirements, or their architecture gets degraded in time by many ad-hoc changes. Consequently, these systems have to go frequently through the costly and oftentimes manually-performed operation of restructuring services and their inter-connections. this paper introduces a restructuring technique for distributed systems that supports an architect in performing a cost-aware analysis of various restructuring scenarios. the technique enables the engineer/architect to explore and evaluate the impact of the restructuring process at a fine-grained level, by providing both a forecast of the restructuring outcome, and the projected cost of the process itself. the approach described is mainly based on a suite of novel coupling metrics, a new algorithm that builds the forecast of the restructured architecture, and a formula for computing the cost. the approach was successfully applied on a commercial distributed framework implemented using RMI and in this paper we summarize the findings and the practical experience. Although the technique was developed for the specific case of distributed systems, we are confident that it can be easily generalized to a larger class of applications.

关键词： Application software Costs Humans Network servers Degradation Performance analysis Computer architecture Joining processes Context Java

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distributed Optimization Based on Utility with Delay Constraints in Wireless sensor Networks

Distributed Optimization Based on Utility with Delay Constra...

引用

international conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Shengbin Liao Wenqing Cheng Wei Liu Zongkai Yang Department of Electronics and Information Engineering Huazhong University of Science and Technology China Engineering and Research Center of Information and Technology on Education Huazhong Normal University China

Delay requirement becomes a key problem for the time sensitive applications in wireless sensor networks besides the power conservation issue. this paper proposes a novel network utility maximization (NUM) model with constrained delay for real-time applications in wireless sensor networks. By using dual decomposition techniques, we present a distributed iterative price and rate adaption algorithm which converges to the global optimal solution. the presented algorithm can jointly control congestion and contention while meeting the delay requirement of each flow in the network. Numerical results validate our arguments.

关键词： Constraint optimization Wireless sensor networks Costs Utility programs Power engineering and energy Iterative algorithms Delay Educational technology Power engineering education Electronic mail

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