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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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Maintaining Constructive Interference Using Well-Synchronized sensor Nodes 12

Maintaining Constructive Interference Using Well-Synchronize...

引用

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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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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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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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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(POSTER) Wireless Multi-sensor Hardware Platform to Enhance Smart Lighting Solutions 20

(POSTER) Wireless Multi-Sensor Hardware Platform to Enhance ...

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20th annual international conference on distributed computing in Smart sensor systems and the Internet of things (dcoss-IoT)

作者： Gomes, Joao Correia, Diogo Resende, Carlos Moreira, Waldir Filipe, Jorge Silva, Carlos Sousa, Antonio Fraunhofer Portugal AICOS Porto Portugal Tridon Portugal Vila Nova De Gaia Portugal

ISBN: (纸本)9798350369458;9798350369441

Smart lighting solutions bring benefits in terms of energy usage and users' well-being. However, their use is not widespread due to high installation and maintenance costs. the current manual commissioning procedure is one of the main human and time-consuming tasks, so its automation is expected to reduce the overall installation cost. Considering this, we propose the Lite4More device, a Bluetooth Low Energy (BLE) based sensor platform that supports the commissioning procedure and is backwards compatible with Digital Addressable Lighting Interface (DALI) devices. the Lite4More device produces sensor data that can feed algorithms to automate the commissioning of lighting infrastructures, namely luminaire localisation and groups and scene creation. the hardware platform was validated in both lab and real office environments. the preliminary results show that Lite4More device sensors are suitable for feeding luminaire localisation and group creation algorithms, and the considered communication technology is viable for smart lighting solutions.

关键词： Lighting Infrastructure Commissioning BLE Multi-sensor Device Smart Lighting

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Adaptive Secrecy Amplification With Radio Channel Key Extraction 14

Adaptive Secrecy Amplification With Radio Channel Key Extrac...

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14th annual international conference on distributed computing in sensor systems (dcoss)

作者： Nemec, Lukas Ostadal, Radim Matyas, Vashek Svenda, Petr Masaryk Univ Fac Informat Ctr Res Cryptog & Secur Brno Czech Republic

ISBN: (纸本)9781538654705

Wireless sensor networks with a large number of cheap low-power interconnected devices bring up challenging tasks when considering the security of their communications. Our paper addresses the issue how cryptographic link keys between communicating sensor nodes can be continuously re-secured even in presence of an attacker who can read the memory of captured nodes. distributed sensor systems enable us to use two different approaches to link key (re-)establishment - secrecy amplification and key extraction from radio channel fading. A secrecy amplification protocol lets a group of neighboring nodes cooperate together to re-secure previously compromised link keys using the non-compromised paths, and previous research showed the ability of secrecy amplification protocols to improve the security of a network from 50% of compromised link keys to 90% of secure keys. Key extraction then exploits radio channel properties to generate secret bits shared between two radio-enabled devices. We propose to combine secrecy amplification and key extraction into a dynamic protocol, where every node will dynamically decide what approach provides a greater benefit, considering the probability of getting the link key re-secured and the resources available. In principle, the more standard traffic messages are exchanged on a given link, the more beneficiary is the usage of key extractions. And less busy links then rely on secrecy amplification(1).

关键词： adaptive autonomous cryptography distributed protocol security wireless radio communication

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A Novel Strategy under Charger Capture Attack in Wireless Rechargeable sensor Networks 16

A Novel Strategy under Charger Capture Attack in Wireless Re...

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16th annual international conference on distributed computing in sensor systems (dcoss)

作者： Yu, Nan Wang, Xiaoyu Dai, Haipeng Chen, Guihai Nanjing Univ State Key Lab Novel Software Technol Nanjing 210024 Jiangsu Peoples R China

ISBN: (纸本)9781728143514

In this paper, we consider the problem of designing a novel ATTack scheme under charger cApture attaCK(ATTACK) in wireless rechargeable sensor networks. that is, there are a number of wireless chargers with directional antenna and rechargeable directional devices deployed in the 2D plane. An intelligent adversary selects a limited number of chargers to be captured and adjust the compromised chargers' power factor such that the overall attacking utility of devices is maximized. To solve our ATTACK problem, we investigate an attacking algorithm with a constant approximation ratio with lightweight timing complexity. We conduct simulation experiments to verify the performance of our proposed attacking algorithm. the results shows that our proposed attacking algorithm can outperform the comparison algorithm by 69.95%.

关键词： Approximation algorithms

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distributed and Scalable Context Reasoning in a Home Environment 12

Distributed and Scalable Context Reasoning in a Home Environ...

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12th annual IEEE international conference on Sensing, Communication, and Networking - Workshops (SECON Workshops)

作者： Irene, S. Pitchiah, R. C DAC Madras Tamil Nadu India DeitY New Delhi India

ISBN: (纸本)9781467373319

Context is the brain of ubiquitous computing. All the intelligence to the ubiquitous system comes from the knowledge of the context. the context is obtained after the processing and reasoning of different sensor data. these sensors are physically distributed in real world. With the advancement in sensing, processing and communication technologies, a distributed processing and reasoning has become a reality. In this paper we proposes a scalable and distributed context reasoning architecture that can be used in large scale environment. It also explains the use of the architecture to recognize higher level human activities in a home environment. the uncertainty in activity context is handled using Bayesian Network.

关键词： Bayes methods Cognition Computer architecture conferences Context Robot sensing systems Uncertainty

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