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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1-10 订阅

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Proceedings - 12th annual international conference on distributed computing in sensor systems, dcoss 2016

Proceedings - 12th Annual International Conference on Distri...

引用

12th annual international conference on distributed computing in sensor systems, dcoss 2016

ISBN: (纸本)9781509014590

the proceedings contain 39 papers. the topics discussed include: SenseWit: pervasive floorplan generation based on only inertial sensing;undervolting in real world WSN applications: a long-term study;designing a cloud-based infrastructure for spectrum sensing: a case study for indoor spaces;energy efficient data collection via supervised in-network classification of sensor data;tree-structured linear approximation for data compression over WSNs;TransTrack: tracking multiple targets by sensing their zone transitions;unsupervised interesting places discovery in location-based social sensing;WiFi-ID: human identification using WiFi signal;error bounds for localization with noise diversity;LLSF: low latency scheduling function for 6TiSCH Networks;COIN: system architecture for programmable connected devices;model transition planning in participatory sensing cold start;optimal deployment of dense WSN for error bounded air pollution mapping;using human social sensors for robust event location detection;and round trip time based adaptive congestion control with CoAP for sensor network.

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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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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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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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Round Trip Time based Adaptive Congestion Control with CoAP for sensor Network 12

Round Trip Time based Adaptive Congestion Control with CoAP ...

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

作者： Lee, Jung June Chung, Sung Min Lee, Byungjun Kim, Kyung Tae Youn, Hee Yong Sungkyunkwan Univ Coll Software Suwon South Korea

ISBN: (纸本)9781509014590

Constrained Application Protocol (CoAP) was developed to support the communication between resource constrained nodes via low-power links. As an Internet protocol, CoAP needs congestion control primarily to stabilize the networking operation. In this paper we propose a new round trip time based adaptive congestion control scheme, which improves CoAP by utilizing the retransmission count information in estimating the retransmission timeout. An experiment is conducted based on Californium CoAP framework and real devices. It shows that the proposed scheme significantly improves CoAP in terms of throughput and rate of successful transaction.

关键词： Adaptive Congestion Control CoAP Round Trip Time Retransmission Timeout sensor Network

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Towards Detecting WiFi Aggregated Interference for Wireless sensors based on Traffic Modelling 12

Towards Detecting WiFi Aggregated Interference for Wireless ...

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

作者： Dhanapala, Indika S. A. Marfieviei, Ramona Agrawal, Piyush Peseh, Dirk Cork Inst Technol Nimbus Ctr Embedded Syst Res Cork Ireland United Technol Res Ctr Cork Ireland

ISBN: (纸本)9781509014590

We present a technique to identify transmission timing for IEEE802.15.4 based Wireless sensor Networks (WSNs) in the presence of WiFi interference. Our technique is based on modeling WiFi traffic with a Modulated Markov Poisson Process (MMPP) model in order to enable us to predict when WiFi transmissions take place and avoid them. We have evaluated the accuracy of our model in a small test-bed. Results are promising and suggest that our approach can increase the reliability of IEEE802.15.4 transmissions.

关键词： Wireless sensor Networks Cognitive Radio Traffic Modelling Interference Detection

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Influence of Topology-Fluctuations on Self-Stabilizing Algorithms 12

Influence of Topology-Fluctuations on Self-Stabilizing Algor...

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

作者： Lohs, Stefan Nolte, Joerg Siegemund, Gerry Turau, Volker BTU Cottbus Senftenberg Distributed Syst Operating Syst Grp Senftenberg Germany Hamburg Univ Technolgy Inst Telemat Hamburg Germany

ISBN: (纸本)9781509014590

Self-stabilizing systems have in theory the unique and provable ability, to always return to a valid system state even in the face of failures. these properties are certainly desirable for domains like wireless ad-hoc networks with numerous unpredictable faults. Unfortunately, the time in which the system returns to a valid state is not predictable and potentially unbound. the failure rate typically depends on physical phenomena and in self-stabilizing systems each node tries to react to failures in an inherently adaptive fashion by the cyclic observation of the states of its neighbors. When state changes are either too quick or too slow the system might never reach a state that is sufficiently stable for a specific task. In this paper, we investigate the influences of the error rate on the (stability) convergence time on the basis of topology information acquired in real network experiments. this allows us to asses the asymptotic behavior of relevant self-stabilizing algorithms in typical wireless networks.

关键词： Failure analysis

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Modeling Optimal Dynamic Scheduling for Energy-aware Workload Distribution in Wireless sensor Networks 12

Modeling Optimal Dynamic Scheduling for Energy-aware Workloa...

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

作者： Yu, Wanli Huang, Yanqiu Garcia-Ortiz, Alberto Univ Bremen Inst Electrodynam & Microelect D-28359 Bremen Germany

ISBN: (纸本)9781509014590

Energy-aware workload distribution becomes crucial for extending the lifetime of wireless sensor networks (WSNs) in complex applications as those in Internet-of-things or in-network DSP processing scenarios. Today static workload schedules are well understood, while dynamic schedules (i.e., with multiple partitions) remain unexplored. this paper models the dynamic scheduling by considering both the communication and computation energy consumption. It formulates a series of (integer) linear programming problems to characterize the optimal scheduling strategies. Surprisingly, even 2-partition scheduling can provide the maximum gains. Besides the interest to evaluate the optimality of on-line heuristics for dynamic scheduling, the reported off-line strategies can be immediately applied to WSN applications.

关键词： Wireless sensor networks

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Spectral Human Flow Counting with RSSI in Wireless sensor Networks 12

Spectral Human Flow Counting with RSSI in Wireless Sensor Ne...

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

作者： Doong, Shing H. ShuTe Univ Dept Informat Management Kaohsiung Taiwan

ISBN: (纸本)9781509014590

Human flow counting is a fundamental task in public space management. Counting flow correctly may help prevent overcrowding hazards and improve public safety. this study proposes an automated device-free flow counting system by exploiting radio frequency irregularity in a wireless sensor network. As people pass through the line-of-sight between transmitters and receivers, radio frequency transmission is disturbed and received signal strength indicator (RSSI) fluctuates at the receiving ends. Using RSSI fluctuation series, the system infers flow size without patrons' carrying any special devices. A wireless sensor network with HBE-Zigbex motes (IEEE 802.15.4) is set up to conduct experiments. Besides the mean and standard deviation of RSSI fluctuation series, Fourier spectral features are also employed as predictors of a machine learning algorithm. Experimental results show that spectral features improve the prediction accuracy significantly. the proposed method thus provides an alternative solution for the flow counting problem in addition to other video based solutions.

关键词： Flow counting RSSI spectral features wireless sensor network

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Adaptive consensus-based distributed Kalman filter for WSNs with random link failures 12

Adaptive consensus-based distributed Kalman filter for WSNs ...

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

作者： Alonso-Roman, Daniel Beferull-Lozano, Baltasar Univ Agder Dept Informat & Commun Technol N-4879 Grimstad Norway

ISBN: (纸本)9781509014590

Wireless sensor Networks have emerged as a very powerful tool for the monitoring and control, over large areas, of diverse phenomena. One of the most appealing properties of these networks is their potentiality to perform complex tasks in a total distributed fashion, without requiring a central entity. In this scenario, where nodes are constrained to use only local information and communicate with one-hop neighbors, iterative consensus algorithms are extensively used due to their simplicity. In this work, we propose the design of a consensus-based distributed Kalman filter for state estimation, in a sensor network whose connections are subject to random failures. As a result of this unreliability, the agreement value of the consensus process is a random variable. Under these conditions, we ensure that the estimator is unbiased, and adaptively compute the gain of the filter by considering the statistical properties of the consensus process. To the best of our knowledge, this is the first time that the design of a consensus-based distributed Kalman filter is addressed by considering the random error introduced by the consensus process. We present some numerical results that confirm the validity of our approach.

关键词： Bandpass filters

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