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

共 6276 条记录，以下是161-170 订阅

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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

引用

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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Improving Energy Conservation Using Bulk Transmission over High-Power Radios in sensor Networks

Improving Energy Conservation Using Bulk Transmission over H...

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28th international conference on distributed computing systems

作者： Sengul, Cigdem Bakht, Mehedi Harris, Albert, III Abdelzaher, Tarek Kravets, Robin ASAP/INRIA UIUC CReSIS-KU

ISBN: (纸本)9781424431748

Low power radios, such as the CC2420, have been widely popular with recent sensor platforms. this paper explores the potential for energy savings from adding a high-power high-bandwidth, radio to current sensor platforms. High-bandwidth radios consume more power but significantly reduce the time for transmissions. Consequently, they offer net savings in total communication energy when there is enough data to offset wake-up energy overhead. the analysis on energy characteristics of several ieee 802.11 radios show that a feasible crossover point exists (in terms of data size) after which energy savings are possible. Based on this analysis, we present a bulk data transmission protocol for dual radio systems. the results of simulations and prototype implementation show significant energy savings at the expense of introducing acceptable delay.

关键词： Energy conservation

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distributed Effect Evaluation Algorithm of Computer English Online Platform based on Hibernate Task-based Data Architecture

Distributed Effect Evaluation Algorithm of Computer English ...

引用

6th international conference on Intelligent computing and Control systems, ICICCS 2022

作者： Wang, Taofeng Guangdong Heyuan Vocational Technology Institute Guangdong 517000 China

ISBN: (纸本)9781665410359

distributed Effect Evaluation Algorithm of the computer English online platform based on Hibernate Task-based Data Architecture is studied in this paper. the image file generated by the CIAB method does not store the state of the system before shutdown. Using this image file to restore, the system will cause inconsistencies between the fast startup and the normal startup system. Hence, to deal with this challenge, the Hibernate framework is combined. Using a specific pattern in a specific application, scenario can obtain a code structure with a clear structure, easy to extend and understand, and is applied to the effect evaluation algorithm into the platform construction. through the testing under different scenarios, the performance is validated. © 2022 ieee.

关键词： Computer architecture

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Construction of Connected Dominating Sets in Large-Scale MANETs Exploiting Self-Stabilization

Construction of Connected Dominating Sets in Large-Scale MAN...

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7th ieee international conference on distributed computing in sensor systems (DCOSS)

作者： Unterschuetz, Stefan Turau, Volker Hamburg Univ Technol Inst Telemat Hamburg Germany

ISBN: (纸本)9781457705137

Available algorithms for the distributed construction of connected dominating sets in mobile ad hoc networks are inapplicable or suffer from a high complexity. this is mainly due to the resource-restricted nature of wireless devices, such as sensor nodes, and the error-prone character of the communication medium. this work introduces and evaluates a new local, probabilistic self-stabilizing algorithm providing fault-tolerance and scalability for networks of high density.

关键词： Ad hoc networks Algorithm design and analysis Fault tolerance Fault tolerant systems Mobile computing Protocols Scalability communication medium connected dominating sets construction distributed construction error-prone character fault tolerance fault-to

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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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Efficient graph planarization in sensor networks and local routing algorithm

Efficient graph planarization in sensor networks and local r...

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8th ieee international conference on distributed computing in sensor systems (DCOSS)/IWSN/WiSARN/PWSN

作者： Huc, Florian Jarry, Aubin Leone, Pierre Rolim, Jose Ecole Polytech Fed Lausanne LPD CH-1015 Lausanne Switzerland Univ Geneva Dept Comp Sci Geneva Switzerland

ISBN: (纸本)9780769547077

In this paper, we propose an efficient planarization algorithm and a routing algorithm dedicated to Unit Disk Graphs whose nodes are localized using the Virtual Raw Anchor Coordinate system (VRAC). Our first algorithm computes a planar 2-spanner under light constraints on the edge lengths and induces a total exchange of at most 6n node identifiers. Its total computational complexity is O(n Delta), with Delta the maximum degree of the communication graph. the second algorithm that we present is a simple and efficient algorithm to route messages in this planar graph that requires routing tables with only three entries. We support these theoretical results by simulations showing the robustness of our algorithms when the coordinates are inaccurate.

关键词： Routing algorithms planning drawings PLANARISATION efficient algorithm Inaccurate sensor networks Coordinates Ganglia Communication Research

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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...

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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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Random Gossip Processes in Smartphone Peer-to-Peer Networks 15

Random Gossip Processes in Smartphone Peer-to-Peer Networks

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15th Annual international conference on distributed computing in sensor systems (DCOSS)

作者： Newport, Calvin Weaver, Alex Georgetown Univ Washington DC 20057 USA

ISBN: (纸本)9781728105703

In this paper, we study random gossip processes in communication models that describe the peer-to-peer networking functionality included in standard smartphone operating systems. these processes are well-understood in standard peer-to-peer network models, but little is known about their behavior in models that abstract the smartphone peer-to-peer setting. With this in mind, we begin by studying a simple random gossip process in the synchronous mobile telephone model (the most common abstraction used to study smartphone peer-to-peer systems). We prove that the simple process is actually more efficient than the best-known gossip algorithm in the mobile telephone model, which required complicated coordination among the nodes in the network. We then introduce a novel variation of the mobile telephone model that removes the synchronized round assumption, shrinking the gap between theory and practice. We prove that simple random gossip processes still converge in this setting and that information spreading still improves along with graph connectivity.

关键词： gossip distributed algorithms peer-to-peer networks

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Optimal Deployment of Dense WSN for Error Bounded Air Pollution Mapping 12

Optimal Deployment of Dense WSN for Error Bounded Air Pollut...

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12th ieee Annual international conference on distributed computing in sensor systems (DCOSS)

作者： Boubrima, Ahmed Bechkit, Walid Rivano, Herve Univ Lyon Inria INSA Lyon CITI F-69621 Villeurbanne France

ISBN: (纸本)9781509014590

Air pollution has become a major issue of modern megalopolis because of industrial emissions and increasing urbanization along with traffic jams and heating/cooling of buildings. Monitoring urban air quality is therefore required by municipalities and by the civil society. Current monitoring systems rely on reference sensing stations that are precise but massive, costly and therefore seldom. In this ongoing work, we focus on an alternative or complementary approach, using a network of low cost and autonomic wireless sensors, allowing for a finer spatiotemporal granularity of air quality sensing. We tackle the optimization problem of sensor deployment and propose an integer programming model, which allows to find the optimal network topology while ensuring air quality monitoring with a high precision and the minimum financial cost. Most of existing deployment models of wireless sensor networks are generic and assume that sensors have a given detection range. this assumption does not fit pollutant concentrations sensing. Our model takes into account interpolation methods to place sensors in such a way that pollution concentration is estimated with a bounded error at locations where no sensor is deployed.

关键词： Air quality monitoring Wireless sensor networks deployment error bounded mapping

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