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检索条件"任意字段=12th Annual International Conference on Distributed Computing in Sensor Systems, DCOSS 2016"

共 28 条记录，以下是11-20 订阅

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Bounding distributed Energy Balancing Schemes for WSNs via Modular Subgames 12

Bounding Distributed Energy Balancing Schemes for WSNs via M...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Buwaya, Julia Rolim, Jose Univ Geneva Dept Comp Sci Geneva Switzerland

ISBN: (纸本)9781509014590

this paper studies means of archiving energy balance in Wireless sensor Networks (WSNs) as criterion to increase network lifetime. While protocols for balancing energy through centralized computation have been established, effective solutions for more realistic distributed settings are still an open research field. In this work, we present a novel approach for balancing energy in WSNs in a distributed manner by solving a sequence of modular strategic subgames. In addition, we prove theoretical bounds for its solution quality. To the best of our knowledge, we are the first to explicitly provide theoretical bounds for distributed WSN energy balancing schemes. We do so by formulating two specific routing games in which sensor nodes act as strategic agents with interests in energy balance. the first formulated game is a monotone utility game and by exploiting and adapting some existing results, we can prove a meaningful relative bound for its solution value via our distributed modular subgames scheme under realistic conditions. For the second game we provide an absolute bound. We round up our theoretical results by an experimental evaluation, where our modular subgames scheme shows increased performance compared to state-of-the-art algorithms.

关键词： Energy balance

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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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Energy Efficient Data Collection via Supervised In-Network Classification of sensor Data 12

Energy Efficient Data Collection via Supervised In-Network C...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Rossi, Lorenzo A. Krishnamachari, Bhaskar Kuo, C. -C. Jay Univ Southern Calif Ming Hsieh Dept Elect Engn Los Angeles CA 90089 USA

ISBN: (纸本)9781509014590

In wireless sensor networks, data collection (or gathering) is the task of transmitting rounds of measurements of physical phenomena from the sensor nodes to a sink node. We study how to increase the efficiency of data collection via supervised in-network classification of rounds of measurements. We assume that the end users of the data are interested only in rounds characterized by certain patterns. Hence the wireless sensor network uses classification to select the rounds of measurements that are transmitted to the base station. the energy consumption is potentially reduced by avoiding the transmission of rounds of measurements that are not of interest to the end users. Innetwork classification requires distributed feature extraction and transmission. Such tasks can be less or more energy expensive than the transmission of measurements without classification. We provide analytical results and simulations on real data to show requirements and key trade-offs for the design of in-network data classification systems that can improve the collection efficiency. Besides, we study the impact of spatial subsampling of the sensor data (a way to further decrease energy consumption) on the classification performance.

关键词： Classification (of information)

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A Novel distributed SDN-Secured Architecture for the IoT 12

A Novel Distributed SDN-Secured Architecture for the IoT

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Gonzalez, Carlos Flauzac, Olivier Nolot, Florent Jara, Antonio Univ Reims CReSTIC Reims France Univ Appl Sci Western Switzerland Sierre Switzerland

ISBN: (纸本)9781509014590

Due to their rapid evolution, mobile devices demand for more dynamic and flexible networking services. A major challenges of future mobile networks is the increased mobile traffic. With the recent upcoming technologies of network programmability like Software-Defined Network (SDN), it may be integrated to create a new communication platform for Internet of things (IoT). In this work, we present how to determine the effectiveness of an approach to build a new secured network architecture based on SDN and clusters. Our proposed scheme is a starting point for some experiments providing perspective over SDN deployment in a cluster environment. With this aim in mind, we suggest a routing protocol that manages routing tasks over Cluster-SDN. By using network virtualization and OpenFlow technologies to generate virtual nodes, we simulate a prototype system controlled by SDN. With our testbed, we are able to manage 500 things. We can analyze every OpenFlow messages and we have discovered that with a particular flow, the things can exchange information unlike the routing principle.

关键词： SDN Openflow Cluster IoT Ad-hoc

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On the Potential of Data-Based Time Synchronization in Wireless sensor Networks for Condition Monitoring 12

On the Potential of Data-Based Time Synchronization in Wirel...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Haenel, thomas Krampe, Florian Gericke, Christoph Aschenbrucle, Nils Univ Osnabruck Inst Comp Sci Albrechtstr 28 D-49076 Osnabruck Germany Corp Technology Dev Albert Einstein Str 16 D-12489 Berlin Germany

ISBN: (纸本)9781509014590

On trains, predetermined maintenance of wheels requires significant amounts of resources. therefore, it is desirable to replace the scheduled maintenance by a condition-based maintenance strategy, where manual maintenance only takes place when it is actually necessary. For a minimally invasive retrofitting of wagons, a system consisting of a Wireless sensor Network (WSN) powered by energy-harvesting offers the most convenient and least costly solution. However, tight time synchronization and high energy efficiency is essential for a successful realization. Established time synchronization techniques for WSNs do not meet the special requirements for this scenario. Looking for an alternative, we noticed that one of the main components of WSNs, the sensor, has been barely exploited for this problem. We will demonstrate the feasibility of using sensor-data-based time synchronization instead of classical message-based synchronization in wireless networks for the example scenario of on-board wheel diameter measurements on trains. In contrast to popular current time synchronization protocols for WSNs, our approach is compatible with every wireless hardware. We perform a simulative evaluation of our approach on various wireless protocols based on message delay distributions measured on Raspberry Pi.

关键词： Wireless sensor Networks Time Synchronization Condition Monitoring Delay Distribution Wheel Diameter Condition Based Maintenance Data-Based Synchronization

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Maintaining Constructive Interference Using Well-Synchronized sensor Nodes 12

Maintaining Constructive Interference Using Well-Synchronize...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Koenig, Michael Wattenhofer, Roger ETH Distributed Comp Grp Zurich Switzerland

ISBN: (纸本)9781509014590

Traditionally, achieving constructive interference (CI) required specialized timekeeping hardware. Recently, the ability and interest to employ CI distributedly at any time using groups of ordinary single antenna wireless sensor nodes have grown. In this paper, we investigate achieving CI on sensor nodes. We consider the commonly employed IEEE 802.15.4 wireless standard, which uses a chip frequency of 1 MHz. this means signals need to be synchronized with an error below 0.5 microseconds to allow for CI. Hence, excellent clock synchronization between nodes as well as precise transmission timing are required. We implemented and tested a prototype addressing the implementation challenges of synchronizing the nodes' clocks up to a precision of a few hundred nanoseconds and of timing transmissions as accurately as possible. Our results show that, even after multiple minutes of sleep, our approach is able to achieve CI in over 30% of cases, in scenarios in which any influence from the capture effect can be ruled out. this leads to an increase in a packet's chance of arrival to 30-65%, compared to 0-30% when transmitting with either less synchrony or different data payload. Further, we find that 2 senders generally increase the signal power by 2-3 dB and can double the packet reception ratio of weak links.

关键词： sensor nodes

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TAU-FIVE: a Multi-Tiered Architecture for Data Quality and Energy-Sustainability in sensor Networks 12

TAU-FIVE: a Multi-Tiered Architecture for Data Quality and E...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Lawson, Victor J. Ramaswamy, Lakshmish Univ Georgia Dept Comp Sci Athens GA 30602 USA

ISBN: (纸本)9781509014590

Current research on wireless sensor networks "WSNs" in the Internet of things "IoT" has focused on performance, scalability and energy efficiency. Innovations in these areas have many challenges due to the increasing volume of smart device data streams in the internet of Everything "IoE". Data feeds from future IoE systems such as the internet of vehicles, smart homes and smart-cities will need real time consolidation. this merger of technologies will require innovative big data algorithms and architectures that authenticate the data streams. A primary concern is in dynamically quantifying the data quality "DQ" of the streams while constructing real-time metrics to assess the energy efficiency "EE" of these IoE devices. In order to define the relationship between sensor stream DQ and EE, we propose our multi-tiered cloud-service architecture TAU-FIVE. the technical contributions of our framework includes data quality and energy efficiency models based on 7 DQ attributes and multiple reprogrammable smart sensors that dynamically modify and regulate the DQ and EE of a WSN. Our research maintains that WSN's can balance sustainability with quality of service by creating real-time metrics that merge energy usage with data stream integrity. this equilibrium will impact energy awareness in the IoT as the multitude of batch device data streams are integrated with the variety of social and professional networks and evolve into the IoE.

关键词： Data quality cloud computing energy model applications to sensing green networks

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Rethinking the Design of LR-WPAN IoT systems with Software-Defined Networking 12

Rethinking the Design of LR-WPAN IoT Systems with Software-D...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Hakiri, Akram Gokhale, Aniruddha Univ Carthage SYSCOM ENIT FST Bizerte ISSAT Mateur Tunisia CNRS LAAS 7 Ave colonel Roche F-31400 Toulouse France Vanderbilt Univ Dept EECS TISIS Nashville TN USA

ISBN: (纸本)9781509014590

Wireless sensor Networks (WSNs) are becoming a key enabling technology for Internet of things (IoT) by virtue of providing a highly unstructured cloud of wireless devices. Despite these advances, the current Internet architecture is not able to cater to the high volume of new traffic patterns delivered by these smart sensing devices. In this context, Software Defined Networking (SDN) has emerged as an intelligent solution to deliver dramatic improvements in network programmability, agility and flexibility. However, SDN was originally targeted to wired networks deployed in cloud data centers, and does not lend itself well to WSNs due primarily to its higher footprint and lack of WSN programmable interfaces. To address these challenges, this paper describes an approach to realize software-defined wireless sensor networks by introducing a novel SDN-enabled architecture for WSNs that can be used for diverse IoT systems. Specifically, we propose new control plane services for supporting automatic topology discovery, sensor virtualization as well as managing network policies. Additionally, we introduce new customized SDN-enabled flow tables to meet the requirements of sensor network packets. Finally, we introduce a programmable MAC layer to support fine-grained flow processing.

关键词： SDN OpenFlow IoT Wireless sensor Networks TDMA

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Efficient Communications in Wireless sensor Networks Based on Biological Robustness 12

Efficient Communications in Wireless Sensor Networks Based o...

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12th IEEE annual international conference on distributed computing in sensor systems (dcoss)

作者： Nazi, Azade Rajt, Mayank Di Francesco, Mario Ghosh, Preetam Dast, Sajal K. Univ Texas Arlington Dept Comp Sci & Engn Arlington TX 76019 USA Missouri Univ Sci & Tech Dept Comp Sci Rolla MO USA Aalto Univ Dept Comp Sci Espoo Finland Virginia Commonwealth Univ Dept Comp Sci Richmond VA 23284 USA

ISBN: (纸本)9781509014590

Robustness in wireless sensor networks (WSNs) is a critical factor that largely depends on their network topology and on how devices can react to disruptions, including node and link failures. this article presents a novel solution to obtain robust WSNs by exploiting principles of biological robustness at nanoscale. Specifically, we consider Gene Regulatory Networks (GRNs) as a model for the interaction between genes in living organisms. GRNs have evolved over millions of years to provide robustness against adverse factors in cells and their environment. Based on this observation, we apply a method to build robust WSNs, called bio-inspired WSNs, by establishing a correspondence between the topology of GRNs and that of already-deployed WSNs. through simulation in realistic conditions, we demonstrate that bio-inspired WSNs are more reliable than existing solutions for the design of robust WSNs. We also show that communications in bio-inspired WSNs have lower latency as well as lower energy consumption than the state of the art.

关键词： Wireless sensor networks gene regulatory networks bio-inspired nanoscale properties robustness efficient communications performance evaluation

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Smart furniture and technologies for supporting distributed learning groups 17

Smart furniture and technologies for supporting distributed ...

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12th Biannual conference of the Italian SIGCHI Chapter: Towards the Mediterranean, CHItaly 2017

作者： Senis, Martina Atzori, Giovanni Sorrentino, Fabio Spano, Lucio Davide Fenu, Gianni University of Cagliari Cagliari Italy

ISBN: (纸本)9781450352376

Advances in Wireless sensor Networks (WSN) and its combination with IP technology support developers of interactive systems in building integrated experiences. In the same way, people are constantly connected between them using mobile devices. through the IoT era we are going to a fully connected world and it influences the field of Education too. Due to the availability of smartphones, bluetooth beacons and other network devices that enhance the interaction in the classroom, we try to lower the gap between the activities that take place in the physical and in the digital world, taking advantage from implicit inputs and tracking the creation of groups. In this paper, we describe a proof of concept in a blended learning environment setting by detailing both the hardware setup and the general prototype architecture design thus presenting the implemented features and the future work. © 2017 Association for computing Machinery.

关键词： Wireless sensor networks

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