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检索条件"任意字段=6th IEEE International Conference on Distributed Computing in Sensor Systems"

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Scalable integrated routing using prefix labels and distributed hash tables for MANETs

Scalable integrated routing using prefix labels and distribu...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： J.J. Garcia-Luna-Aceves Dhananjay Sampath Computer Engineering Department University of California Santa Cruz CA USA Palo Alto Research Center Inc.orporated Palo Alto CA USA

We present AIR (automatic incremental routing), a unified approach for scalable unicast and multicast routing in mobile ad hoc networks (MANET). In AIR, nodes run a distributed routing algorithm to assign prefix labels to themselves. the labels are assigned such that routing to unicast or multicast destinations is automatic, in that a route from any node to a destination is defined by the node's prefix labels, and incremental, in that no relay node needs to know an entire path to any destination. We verify that AIR provides correct unicast and multicast routing, and present simulation results comparing AIR with AODV, OLSR, MAODV and ODMRP in MANETs. the results from these simulation experiments, as well as from tests carried out in a small testbed running AIR in wireless routers, illustrate that AIR offers substantial performance advantages over traditional unicast and multicast routing protocols, even in the case of small networks.

关键词： Unicast Mobile ad hoc networks Relays Multicast protocols Testing Routing protocols Computer networks Multicast algorithms Mobile communication Media Access Protocol

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Quality estimation based data fusion in wireless sensor networks

Quality estimation based data fusion in wireless sensor netw...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Frederik Hermans Norman Dziengel Jochen Schiller Institute of Computer Science Freie Universität Berlin Berlin Germany

the main purpose of wireless sensor networks (WSNs) is to obtain information about their environment. However, WSNs often produce imprecise and incorrect sensor data, e.g. because of sensor failure or unreliable radio communication. We propose a system for WSN applications that allows to assess the quality of sensor data and further allows to fuse data based on their estimated quality. Our system comprises local and distributed heuristics to estimate the quality of sensor data, with a focus on data accuracy and data consistency. In the fusion step, the most plausible value of the measured quantity is inferred from multiple sensor readings by use of the Dempster-Shafer theory of evidence. Both quality assessment and data fusion are carried out within the network and thus do not rely on a powerful sink node. We demonstrate the effectiveness of our system by means of a wireless game controller for the game Pong, built from multiple sensor nodes. the controller can detect and reject incorrect sensor readings and thus improve the player's control over the in-game paddle.

关键词： Wireless sensor networks sensor systems Fuses sensor fusion Monitoring Quality assessment Face detection Engines Computer science Radio communication

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SecMCL: A Secure Monte Carlo Localization algorithm for mobile sensor networks

SecMCL: A Secure Monte Carlo Localization algorithm for mobi...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Yingpei Zeng Jiannong Cao Jue Hong Shigeng Zhang Li Xie State Key Laboratory of Novel Software Technology Nanjing University Nanjing China Department of Computing Hong Kong Polytechnic University Hong Kong China

Recently with the emergence of mobile sensor networks, localization for such networks has gained much attention, and many localization algorithms have been proposed. Among them the sequential Monte Carlo (SMC) based algorithms are very popular because of their simplicity and efficiency. However, most current SMC-based localization algorithms implicitly assume there is no attacker in the network, which may not be true in real applications. the attackers, if any, may send false information by themselves or through compromised nodes to disturb the localization. In this paper, we present the design and evaluation of a secure Monte Carlo localization algorithm, SecMCL. SecMCL provides authentication to messages and employs a new sampling method to defeat attacks. Simulation results show that SecMCL greatly improves the localization accuracy of existing SMC-based localization method when there are attacks. Also, compared with existing SMC localization method, SecMCL incurs no communication cost (in terms of number of messages) and achieves the same localization accuracy when there is no attack.

关键词： Monte Carlo methods Sliding mode control Algorithm design and analysis Sampling methods Costs Monitoring Global Positioning System Laboratories Computer networks Mobile computing

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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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A multi-rate based router placement scheme for wireless mesh networks

A multi-rate based router placement scheme for wireless mesh...

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Junfang Wang Kan Cai Dharma R. Agrawal Center of Distributed and Mobile Computing Department of Computer Science University of Cincinnati Cincinnati OH USA Department of Computer Science University of British Columbia Vancouver BC Canada

Mesh router (MR) placement is one of the fundamental issues that need to be addressed carefully to achieve a desired performance of a wireless mesh network (WMN). the objective of the MR placement schemes is to systematically determine the minimal number of MRs and their positions while satisfying various constraints, such as coverage, connectivity, traffic demand, etc. this paper explores the solution for placing the MRs with multiple transmission rates, which influence both transmission range and wireless link capacity. In the paper, we first formulate the problem with a mixed integer programming model. We then present a heuristic placement algorithm called ILSearch which takes into account both multiple transmission rates and co-channel interference. the ILSearch consists of two components: (1) Coverage MR determination which greedily exploits the capability of each selected MR to cover mesh clients (MCs); and (2) Relay MR determination that incrementally chooses the additional MRs for traffic relaying through the local search. Our simulation has not only shown that ILSearch can effectively obtain the MR placement that meets all the constraints, but also demonstrated that a MR placement which considers the variable transmission rates outperforms those don't.

关键词： Wireless mesh networks Relays Telecommunication traffic Internet Computer science Traffic control Linear programming Heuristic algorithms Interchannel interference Mesh networks

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Anti-sensornet: Intruders and countermeasure

Anti-sensornet: Intruders and countermeasure

引用

ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Min-You Wu Department of Computer Science and Engineering Shanghai JiaoTong University Shanghai China

this article addresses a new area of sensor networks - the anti-sensornet. though the term anti-sensornet is scattered throughout literature, there is no systematic description of the anti-sensornet. In this article, we provide an introduction to anti-sensornet by analyzing the behaviors of intelligent intruders and the methods used to confront them including hiding sensor networks, enhancing detection capabilities and recovering from successful attacks.

关键词： Wireless sensor networks Delay Resource management Energy consumption Processor scheduling Pricing sensor phenomena and characterization Availability Dynamic scheduling Voltage control

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Multiobjective Routing for Simultaneously Optimizing System Lifetime and Source-to-Sink Delay in Wireless sensor Networks

Multiobjective Routing for Simultaneously Optimizing System ...

引用

international conference on distributed computing systems Workshop

作者： Mahmood R. Minhas Sathish Gopalakrishnan Victor C.M. Leung Department of Electrical & Computer Engineering University of British Columbia Vancouver Canada

We target an interesting problem of simultaneous optimization of lifetime and source-to-sink delay in wireless sensor networks, and present a fuzzy multiobjective online routing algorithm. For a routing request, the proposed routing algorithm finds a path that offers a good balance between the two routing objectives, namely maximizing the network lifetime and minimizing the source-to-sink delay. Fuzzy membership functions and rules are used for designing the cost function for each of the optimization objective and the multiobjective cost aggregation function, respectively. It is shown that the use of fuzzy logic offers a flexible mean of controlling the tradeoff between the two objectives. A set of simulation results were obtained, using numerous topologies and under various parameters, to indicate that the proposed multiobjective routing scheme is able to achieve good lifetime values while maintaining reasonably short end-to-end delay values.

关键词： Routing Wireless sensor networks Delay distributed computing Cost function Fuzzy logic Algorithm design and analysis conferences sensor systems Computer networks

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EDLA Tradeoffs for Wireless sensor Network Target Tracking

EDLA Tradeoffs for Wireless Sensor Network Target Tracking

引用

international conference on distributed computing systems Workshop

作者： Richard Tynan G.M.P. O'Hare M.J. O'Grady Conor Muldoon CLARITY: The Centre for Sensor Web Technologies University College Dublin Belfield Ireland

the number of active nodes in a WSN deployment governs both the longevity of the network and the accuracy of applications using the network's data. As node hibernation techniques become more sophistocated, it is important that an accurate evaluation methodology is employed to ensure fair comparisons across different techniques. Examining both energy and accuracy ensures a claim of increased longevity for a particular technique can be contrasted against its associated drop, if any, in application accuracy. this change can also be as a result of increased latency and the accuracy encapsulates many aspects of WSN performance in one metric. In this work, we detail the first in a series of simulation experiments designed to demonstrate the tradeoffs for a WSN and we employ mobility tracking as the application to benchmark accuracy. Additionally, we demonstrate experimental evidence for a potential adaptive mobility tracking protocol.

关键词： Wireless sensor networks Target tracking Delay Protocols Quality of service distributed computing conferences Educational institutions Performance analysis Network topology

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Adaptive Data Replication for Load Sharing in a sensor Data Center

Adaptive Data Replication for Load Sharing in a Sensor Data ...

引用

international conference on distributed computing systems Workshop

作者： Kyoung-Don Kang Can Basaran Department of Computer Science State University of New york Binghamton USA

Cyber-physical applications need to process a lot of sensor data, for example, to analyze traffic patterns and structural soundness of critical infrastructures. Although the amount of sensor data to process is increasing fast, system support to efficiently store and analyze an extensive amount of sensor data largely lags behind. To efficiently store, retrieve, and process massive sensor data, we are developing a sensor data center (SDC) that supports spatio-temporal sensor data structures and parallel sensor data processing using clustered computational nodes composed of commodity hardware. the SDC sharply contrasts to most existing data centers that do not support spatio-temporal sensor data storage, retrieval, and processing. In this paper, we especially focus on the problem of potential load imbalance due to data access skews that adversely affects the timeliness of parallel sensor data processing. Specifically, we present an adaptive data replication method to address access skews in a SDC. In our performance evaluation performed in a preliminary version of a SDC, our adaptive approach substantially outperforms a baseline that does not support adaptive data replication.

关键词： Acoustic sensors sensor systems Information retrieval Data processing Pattern analysis Data structures Concurrent computing Hardware Memory Performance evaluation

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