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Asynchronous Gossip in Smartphone Peer-to-Peer Networks 17

Asynchronous Gossip in Smartphone Peer-to-Peer Networks

引用

17th Annual ieee international conference on distributed computing in sensor systems (ieee dcoss)

作者： Newport, Calvin Weaver, Alex Zheng, Chaodong Georgetown Univ Washington DC 20007 USA Nanjing Univ Nanjing Peoples R China

ISBN: (纸本)9781665439299

In this paper, we study gossip algorithms in communication models that describe the peer-to-peer networking functionality included in most standard smartphone operating systems. We begin by describing and analyzing a new synchronous gossip algorithm in this setting that features both a faster round complexity and simpler operation than the best-known existing solutions. We also prove a new lower bound on the rounds required to solve gossip that resolves a minor open question by establishing that existing synchronous solutions are within logarithmic factors of optimal. We then adapt our synchronous algorithm to produce a novel gossip strategy for an asynchronous model that directly captures the interface of a standard smartphone peer-to-peer networking library (enabling algorithms described in this model to be easily implemented on real phones). Using new analysis techniques, we prove that this asynchronous strategy efficiently solves gossip. This is the first known efficient asynchronous information dissemination result for the smartphone peer-to-peer setting. We argue that our new strategy can be used to implement effective information spreading subroutines in real world smartphone peer-to-peer network applications, and that the analytical tools we developed to analyze it can be leveraged to produce other broadly useful algorithmic strategies for this increasingly important setting.

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

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A Wireless sensor Network Testbed for Event Detection in Smart Homes

A Wireless Sensor Network Testbed for Event Detection in Sma...

引用

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

作者： Mekikis, Prodromos-Vasileios Athanasiou, George Fischione, Carlo KTH Royal Inst Technol Sch Elect Engn SE-10044 Stockholm Sweden

ISBN: (纸本)9780769550411

In smart homes, it is essential to reliably detect events including water leakages. A control action, such as shutting the water pipes, relies on reliable event detection. In this demo, a wireless sensor network for detection and localization of events in smart homes is presented. The demo is based on novel distributed detection-estimation and localization algorithms. A graphical user interface to visualize in real-time the network status is developed. Upon a detected event, the user is alerted through a Twitter notification. In the experiments the false alarm probability is improved by 30% and the average relative localization error is 1.7%.

关键词： building management systems graphical user interfaces pipelines social networking (online) wireless sensor networks

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How Different Transceiver Hardware Effects Concurrent Transmissions in WSNs 14

How Different Transceiver Hardware Effects Concurrent Transm...

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

作者： von Zengen, Georg Baumstark, Alexander Willecke, Alexander Kulau, Ulf Wolf, Lars C. Tech Univ Carolo Wilhelmina Braunschweig Inst Operating Syst & Comp Networks Braunschweig Germany

ISBN: (纸本)9781538654705

The efficiency and effectiveness of network flooding protocols has recently been shown by many publications as well as real world deployments. One notable protocol is Glossy which combines Concurrent Transmission (CT) with Constructive Interference (CI). A drawback of Glossy is that up to now it has only been implemented and evaluated for one type of radio transceiver. In this paper we first present the Glossy implementation for an AT86RF233 radio transceiver which simplifies the packet forwarding due to a shared receive and transmit buffer. We evaluate our implementation against the original Glossy implementation in a minimalist setup as well as in a real world testbed. However, we observed a noticeable difference in the timing accuracy of the transceiver chips but without adverse effects on the network's performance. For this reason, in the second part of this paper we provide a deeper investigation by using Software Defined Radios to emulate concurrent transmission for different types of transceivers. This work confirms the general benefit of constructive interference but also shows its limitations. Moreover, we give novel insight into hardware dependability of constructive interference in concurrent transmissions.

关键词： Protocols Transceivers Wireless sensor networks Interference ieee 802.15 Standard Packet loss

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Passive target tracking: Application with mobile devices using an indoors WSN Future Internet testbed

Passive target tracking: Application with mobile devices usi...

引用

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

作者： Marios, Karagiannis Konstantinos, Chantzis Sotiris, Nikoletseas Jose, Rolim Ctr Univ Informat Geneva Switzerland Res Acad Comp Technol Inst CTI Patras Greece Univ Patras GR-26110 Patras Greece

ISBN: (纸本)9781457705137

In this paper, we describe the implementation of applying and testing the "Lightweight Target Tracking using Passive Traces algorithm" [1] on a FIRE wireless sensors testbed located in the Theoretical Computer Science/sensors Lab in Geneva, Switzerland. We provide information about the hardware installation and configuration, the changes we did to the algorithm to adapt it to a real testbed as well as the tools we implemented to operate the network and receive feedback from the algorithm's operation. Finally, we discuss the performance evaluation findings of our implementation.

关键词： FIRE wireless sensor testbed Internet Internet Mobile communication Robots sensors Software Target tracking Wireless sensor networks indoor WSN indoor communication lightweight target tracking mobile device mobile radio passive target tracking passive tra

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Component-Average based distributed Seismic Tomography in sensor Networks

Component-Average based Distributed Seismic Tomography in Se...

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

作者： Kamath, Goutham Shi, Lei Song, Wen-Zhan Georgia State Univ Dept Comp Sci Atlanta GA 30303 USA

ISBN: (纸本)9780769550411

Existing volcano instrumentation and monitoring system use centralized approach for data collection and image reconstruction and they lack the capability of obtaining real time information. A new distributed method is required which can obtain a high resolution seismic tomography in real time. In this paper, we present a component-average distributed multi-resolution evolving tomography algorithm for processing data and inverting volcano tomography in the network, while avoiding centralized computation and costly data collection. The new algorithm distributes the computational burden to sensor nodes and performs real time tomographic inversion under constraints of network resources. We implemented and evaluated the algorithm in a customized simulator using synthetic data. The experiment results validate that our proposed algorithm not only balances the computation load but also achieves high data loss tolerance.(1)

关键词： distributed computing Seismic Tomography sensor Network

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Irida: A real-time Wireless sensor Network visualization feedback protocol

Irida: A real-time Wireless Sensor Network visualization fee...

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

作者： Karagiannis, Marios Dallinge, Laetitia Rolim, Jose Ctr Univ Informat Geneva Switzerland

ISBN: (纸本)9780769547077

In this paper, we describe the implementation of a real time visualization and feedback system for Wireless sensor Network algorithms. The system is based on a fixed hardware testbed, which is deployed on a vertical flat surface and a feedback loop system that takes information about the current state of the network and projects this state, in a visual way, on the surface itself using a video projector. The protocol used is open and simple to use, and can be easily adapted for different hardware configurations. We call our system Irida.

关键词： Wireless sensor Networks Data Visualization Tools Visualization Protocol Visual Feedback

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Network-Aware AutoML Framework for Software-Defined sensor Networks 17

Network-Aware AutoML Framework for Software-Defined Sensor N...

引用

17th Annual ieee international conference on distributed computing in sensor systems (ieee dcoss)

作者： Horsanali, Emre Yigit, Yagmur Secinti, Gokhan Karameseoglu, Aytac Canberk, Berk Istanbul Tech Univ Dept Comp Engn Istanbul Turkey BTS Grp Istanbul Turkey Istanbul Tech Univ Dept AI & Data Engn Istanbul Turkey

ISBN: (纸本)9781665439299

As the current detection solutions of distributed denial of service attacks (DDoS) need additional infrastructures to handle high aggregate data rates, they are not suitable for sensor networks or the internet of things. Besides, the security architecture of software-defined sensor networks needs to pay attention to the vulnerabilities of both software-defined networks and sensor networks. In this paper, we propose a networka-ware automated machine learning (AutoML) framework, which detects DDoS attacks in software-defined sensor networks. Our framework selects an ideal machine learning algorithm to detect DDoS attacks in network-constrained environments, using the metrics such as variable traffic load, heterogeneous traffic rate, and detection time while preventing over-fitting. Our contributions are two-fold: (i) we first investigate the trade-off between the efficiency of ML algorithms and network/traffic state in the scope of DDoS detection. (ii) we design and implement a software architecture containing open-source network tools, with the deployment of multiple ML algorithms. Lastly, we show that under the denial of service attacks, our framework ensures the traffic packets are still delivered within the network with additional delays.

关键词： Automated Machine Learning (AutoML) Sofware-defined sensor Networks (SDSN) distributed Denial-of-Service (DDoS)

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Information-driven sensor Selection for Energy-Efficient Human Motion Tracking

Information-driven Sensor Selection for Energy-Efficient Hum...

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

作者： Tham, Chen-Khong Han, Mingding Natl Univ Singapore Dept Elect & Comp Engn Singapore 117548 Singapore

ISBN: (纸本)9780769550411

In this paper, we address the issue of human motion tracking in a smart space using a wireless sensor network with a small number of ultrasonic sensors. Ultrasonic sensing is preferable in situations where video monitoring is prohibited due to privacy concerns or is ruled out due to its higher cost and energy consumption. Unlike other common tracking techniques, the schemes proposed in this paper do not require the tracked person to wear a tag. In order to conserve energy, a single ultrasonic sensor that provides maximum information gain is selected. We use the Extended Kalman Filter (EKF) which provides robust state estimates from noisy signals as well as an uncertainty measure in the form of the state covariance, and propose the use of a process model which copes better with missed detections compared to the commonly used constant velocity process model. We propose two sensor selection schemes: (i) Current Node sensor Selection (CNSS), and (ii) distributed Neighbourhood node sensor Election (DNSE), and evaluate their performance in terms of tracking accuracy, target detection ratio and sensor network lifetime.

关键词： Kalman filters nonlinear filters object detection target tracking ultrasonic equipment wireless sensor networks

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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...

引用

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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Threat Modelling of IoT systems Using distributed Ledger Technologies and IOTA 17

Threat Modelling of IoT Systems Using Distributed Ledger Tec...

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17th Annual ieee international conference on distributed computing in sensor systems (ieee dcoss)

作者： Damianou, Amalia Khan, M. Amir Angelopoulos, Constantinos Marios Katos, Vasilios Bournemouth Univ Poole Dorset England

ISBN: (纸本)9781665439299

Internet of Things has emerged as a key technological enabler for broader socio-technical and socio-economic paradigms, such as smart cities and Circular Economy. However, IoT systems are characterised by constraints and limitations which in order to be overcome they need to be deployed in conjunction and in synergy with other emerging ICT. distributed Ledger Technologies (DLT) can help overcome challenges pertaining to data immutability, timeliness and security. However, the use of DLT does not satisfactorily mitigate security risks and vulnerabilities per se and currently cybersecurity aspects of IoT systems are addressed in a fragmented way. Furthermore, the conflict between the resource demanding Blockchains and the highly constrained nature of IoT devices hinders implementation efforts of corresponding systems. We consider networked systems that comprise both IoT and DLT technologies via the prism of Intelligent Transportation systems (ITS). We elicit a three-tier threat model identifying attack vectors at the Device, the Network and the DLT layers. The identified attacks are then ranked by using the DREAD ranking scheme. The use of the threat model is demonstrated on a novel proof-of-concept IoT networked system implemented using the IOTA Tangle distributed ledger, where it helps to critically appraise the design of the system against the most critical attacks. Furthermore, the developed system is among the first in the literature to demonstrate the synergy of IoT and DLT on actual constrained embedded devices. The performance evaluation provides insights showing that such systems can be efficient and suitable for real-life deployment.

关键词： distributed Ledger Technologies Internet of Things Intelligent Vehicles

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