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检索条件"任意字段=9th IEEE International Conference on Distributed Computing in Sensor Systems, DCOSS 2014"

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Adaptive Fuzzy Logic Mobility Management for WSN

Adaptive Fuzzy Logic Mobility Management for WSN

引用

9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Zinonos, Zinon Vassiliou, Vasos Chrysostomou, Chrysostomos Univ Cyprus Dept Comp Sci Nicosia Cyprus Frederick Univ Dept Comp Sci & Engn CY-1036 Nicosia Cyprus

ISBN: (纸本)9781479946181

Mobility management is a crucial problem for wireless mobile communication, especially in industrial wireless sensor networks. Our mobility approach resides on the fact we need to adaptively combine globally available information in order to produce a successful handoff. In this paper, we propose an adaptive fuzzy logic mobility system to support the handoff procedure in industrial wireless sensors. the results clearly show that the proposed adaptive fuzzy logic mobility controller performs better compared to the non-adaptive fuzzy logic controller, in terms of packet loss, power consumption, and on-time triggering.

关键词： adaptive fuzzy logic handoff industrial mobility handoff Fuzzy logic Self tuning Wireless sensor networks Industrial mobility management WSN gene mobility Wireless mobile communication

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On Decentralized In-Network Aggregation in Real-World Scenarios with Crowd Mobility

On Decentralized In-Network Aggregation in Real-World Scenar...

引用

9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Gregorczyk, Michal Pazurkiewicz, Tomasz Iwanicki, Konrad Univ Warsaw Warsaw Poland

ISBN: (纸本)9781479946181

Recently proposed applications for monitoring the behavior of real-world crowds with wireless sensor nodes rely on decentralized in-network aggregation. Although some of the aggregation algorithms for wireless sensor networks seem appealing for such applications, we are not aware of any deployments of these algorithms in real-world scenarios with crowd mobility. As a step toward filling this gap, we thus discuss our experiences with decentralized in-network aggregation from a few such deployments involving up to 177 nodes. We compare two main classes of algorithms for basic aggregates. We show that algorithms based on probabilistic, order- and duplicate-insensitive sketches outperform algorithms based on gradual variance reduction. To this end, however, they have to be adapted considerably to minimize the traffic, latency, and errors of the aggregation process, and to account for some real-world issues. In short, while the algorithms do have a potential for the envisioned crowd-monitoring applications, deploying them is not trivial.

关键词： Decentralized algorithms agglomeration Wireless sensor networks

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Compressive Sensing Based Data Gathering in Clustered Wireless sensor Networks

Compressive Sensing Based Data Gathering in Clustered Wirele...

引用

9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Minh Tuan Nguyen Teague, Keith A. Oklahoma State Univ Sch Elect & Comp Engn Stillwater OK 74078 USA

ISBN: (纸本)9781479946181

In this paper, we study the integration between Compressed Sensing (CS) and clustering methods in Wireless sensor Networks (WSNs) that significantly reduce power consumption for the networks. In theory, a base station (BS) needs to collect M measurements from the network with N sensors, then applies CS to obtain precisely all N sensor readings. In clustered networks, a cluster-head (CH) collects data from non-CH sensors in its cluster, adds all received and its own data and then sends the combined measurement to the BS. We further analyze the clustered network with the measurement matrix created by clustering methods, and formulate the total power consumption. Finally, we suggest the optimal number of clusters for the networks to consume the least power in practice.

关键词： Wireless sensor networks Data Collection Methods Clustering methods measurement matrix Compressed sensing Bahamas Network Power consumption optimum number sensors carbon monosulfide CONTAINMENT SPRAY Cesium

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sensor Localization Via Diversely Polarized Antennas

Sensor Localization Via Diversely Polarized Antennas

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9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Marques Marinho, Marco Antonio de Freitas, Edison Pignaton Carvalho Lustosa da Costa, Joao Paulo de Sousa Junior, Rafael Timoteo Univ Brasilia UnB Dept Elect Engn ENE Brasilia DF Brazil Fed Univ Santa Maria Frederico Westphalen UFSM FW Dept Informat Technol Santa Maria RS Brazil

ISBN: (纸本)9781479946181

Wireless sensor networks (WSNs) are currently employed in a vast number of different applications ranging from home automation and health care to military systems. Although their application may vary greatly, WSNs share a common set of characteristics such as a limited energy supply and simple hardware. A common issue related with the application of WSNs is sensor localization, for some types of applications it is important that the sensors know the relative or absolute position of other sensors in the network, such as surveillance of monitoring networks. If sensors are randomly placed they may resort a wide range of methods such as Global Navigation Satellite systems (GNSS) or received signal strength indicators (RSSI). In this work we present an alternative to relative sensor localization by employed a crossed dipole antenna in the reception and a known polarization in the transmission. the accuracy of the proposed methods is measured trough numerical simulations and results are presented.

关键词： Wireless sensor Networks sensor Localization

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Optimizing Router Nodes Placement for Designing distributed sensor Networks

Optimizing Router Nodes Placement for Designing Distributed ...

引用

9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Mozumdar, Mohammad Ganesan, Arun Daragheh, Alireza Ameri Calif State Univ Long Beach Dept Elect Engn Long Beach CA 90840 USA

ISBN: (纸本)9781479946181

Designing a distributed wireless sensor network can be a difficult effort without using simulation tools. these tools should provide a robust and efficient solution for the problem with quick response time. However, available simulation tools for designing wireless sensor networks are very limited. Authors in [1] proposed an interactive design tool based on Dijkstra's algorithm which can assist rapid design of sensor network. However, it has a very high execution time when the network size is relatively large, i.e. n >= 50. Moreover, it produces a suboptimal solution with large number of router nodes. In this paper, we present efficient and robust synthesis algorithms which exclusively reduce run time for large networks as much as 1000% and also produce a synthesized network with a reduced number of router nodes as much as 150% in comparison to similar previous works.

关键词： wireless sensor network router placement synthesis algorithm

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Capturing Semantics of Energy Meter

Capturing Semantics of Energy Meter

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9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Dasgupta, Ranjan Dey, Sounak Basu, Anupam Tata Consultancy Serv Ltd Innovat Lab Kolkata India Indian Inst Technol Dept Comp Sci Kharagpur 721302 W Bengal India

ISBN: (纸本)9781479946181

Numerous sensors are involved in sensing almost everything around us in a cyber-physical system. they generate heterogeneous data which are diverse in format and protocol. Prevailing standards formally define sensor data encodings and provide syntactic interoperability but failed to provide semantic capability required for searching, reasoning, querying on sensors and their observations. the paper extends ieee SUMO and Ontosensor to create an ontological structure that captures various sensor concepts and their relationships. It logically classifies sensor information into four major sensor knowledge representation (1) hierarchy (2) data (3) function and (4) data exchange. the proposed sensor ontology has been extended for energy meter as an energy sensor. the represented semantic can be captured through Protege 4.3.0 and subsequently by OWL-XML. Reasoning on the sensor data can be carried out using SWRL.

关键词： Taxonomy Knowledge Representation Syntactic Semantic Interoperability Concept Relationship Ontology CPS IoT ieee SUMO Ontosensor sensorML

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FlashTrack: A Fast, In-network Tracking System for sensor Networks

FlashTrack: A Fast, In-network Tracking System for Sensor Ne...

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9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Jiang, Hao Zhai, Jiannan Hallstrom, Jason O. Clemson Univ Sch Comp Clemson SC 29631 USA

ISBN: (纸本)9781479946181

We revisit the classic object tracking problem with a novel and effective, yet straightforward distributed solution for resource-lean devices. the difficulty of object tracking lies in the mismatch between the limited computational capacity of typical sensor nodes and the processing requirements of typical tracking algorithms. In this paper, we introduce an in-network system for tracking mobile objects using resource-lean sensors. the system is based on a distributed, dynamically-scoped tracking algorithm which alters the event detection region and reporting rate based on object speed. A leader node records the detected samples across the event region and estimates the object's location in situ. We study the performance of our tracking implementation on an 80-node testbed. the results show that it achieves high performance, even for very fast objects, and is readily implemented on resource-lean sensors. While the area is well-studied, the unique combination of algorithmic features represents a significant addition to the literature.

关键词： distributed Algorithm Network Protocol Object Tracking Wireless sensor Networks Network protocols distributed algorithms tracking objects Wireless sensor networks TRACKING SYSTEM sensor networks tracking sensors

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Cooperative Modulation Diversity Applied to Heterogeneous Wireless sensor Networks

Cooperative Modulation Diversity Applied to Heterogeneous Wi...

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9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Sousa, Marcelo Portela Araujo Lopes, Waslon Terllizzie Madeiro, Francisco Alencar, Marcelo S. Fed Inst Paraiba IFPB Campina Grande PB Brazil Inst Adv Studies Commun Iecom Campina Grande PB Brazil Fed Univ Campina Grande UFCG Campina Grande PB Brazil Univ Pernambuco Polytech Sch Pernambuco Recife PE Brazil

ISBN: (纸本)9781479946181

the technology of Wireless sensor Networks (WSNs) has been applied to automatic monitoring systems, and used in a wide variety of environments. In this paper, the authors evaluate the performance of a cooperative technique, applied to heterogeneous WSNs. the main contribution is the analysis of the impacts between the energy factor, the channel Signal-to-Noise Ratio (SNR) and the packet loss rate. the analysis also considers the energy consumption aspect. the cooperative modulation diversity performance is evaluated for different propagation scenarios and for two values of interleaving depth (K). A large value for K, leads the network to present lower values of packet lost rate. Some limiting conditions are obtained and the retransmission algorithm is discussed.

关键词： Wireless sensor networks energy factor signal to noise ratios Potassium automatic monitoring

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Modelling and Performance Analysis of Wireless sensor Networks Using Process Mining Techniques: ContikiMAC use case

Modelling and Performance Analysis of Wireless Sensor Networ...

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9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Despaux, Francois Song, Ye-Qiong Lahmadi, Abdelkader Univ Lorraine LORIA F-54500 Vandoeuvre Les Nancy France

ISBN: (纸本)9781479946181

In the current protocol stack for Internet of things in general and wireless sensor network in particular, many devices rely on the ContikiMAC protocol at their MAC layer. this protocol is widely used and enabled by default for several industrial environments and time sensitive monitoring and control applications. However, few work exists regarding the performance of this protocol because it lacks of an underlying theoretical model for analysing its performance. In this paper, we propose a novel approach relying on process mining technique that aims to obtain a Markov chain model for networks running the ContikiMAC protocol. In particular, we present a comprehensive specification of the protocol and a Markov chain model obtained through the analysis and instrumentation of its reference implementation. We used the obtained Markov chain to analyze and estimate the end to end delay distribution for a multi-hops transmission with static routing. the approach can also be extended to a wide range of protocols.

关键词： MAC Protocols Markov chain Process Mining Network performance

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Dimensioning of Wireless sensor and Actuator Networks for Guaranteed Delivery Time

Dimensioning of Wireless Sensor and Actuator Networks for Gu...

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9th ieee international conference on distributed computing in sensor systems (dcoss)

作者： Suriyachai, Petcharat Prince Songkla Univ Fac Engn Dept Comp Engn Hat Yai Thailand

ISBN: (纸本)9781479946181

Wireless sensor and actuator network (WSAN) applications are used in many critical scenarios. For instance, upon receiving an over-threshold pressure value, the control station of a gas separation plant issues a command to corresponding actuators to close gas valves to prevent a fire accident. In such control-loop systems, messages must be transported reliably within a tight deadline. this paper presents two components: a new network dimensioning method and a simple MAC protocol, to support control-loop systems in WSANs. the dimensioning method is used to specify the worst-case network topology, traffic and node forwarding rates prior to a network deployment. the MAC protocol is designed to ensure that the specifications and design assumptions are not violated in a subsequent deployment. the experimental evaluation clearly indicates that messages are delivered within the guaranteed delay bound.

关键词： Medium Access Control (MAC) Protocol Network Dimensioning Performance Control Quality of Services Time-critical Applications Wireless sensor Networks Wireless sensor and Actuator Networks Quality of service DIMENSIONING Wireless sensor networks MAC protocol Methotrexate-Actinomycin-Chlorambucil Regimen actuators control ring control station Messages delivery date wireless

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