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A Model for Reliable Uplink Transmissions in LoRaWAN 15

A Model for Reliable Uplink Transmissions in LoRaWAN

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

作者： Khan, Furqan Hameed Jurdak, Raja Portmann, Marius Univ Queensland Sch ITEE Brisbane Qld Australia CSIRO Data61 Distributed Sensing Syst Brisbane Qld Australia

ISBN: (纸本)9781728105703

Long range wide area networks (LoRaWAN) technology provides a simple solution to enable low-cost services for low power internet-of-things (IoT) networks in various applications. the current evaluation of LoRaWAN networks relies on simulations or early testing, which are typically time-consuming and prevent effective exploration of the design space. this paper proposes an analytical model to calculate the delay and energy consumed for reliable Uplink (UL) data delivery in Class A LoRaWAN. the analytical model is evaluated using a real network test-bed as well as simulation experiments based on the ns-3 LoRaWAN module. the resulting comparison confirms that the model accurately estimates the delay and energy consumed in the considered environment. the value of the model is demonstrated via its application to evaluate the impact of the number of end-devices and the maximum number of data frame retransmissions on delay and energy consumed for the confirmed UL data delivery in LoRaWAN networks. the model can be used to optimize different transmission parameters in future LoRaWAN networks.

关键词： LoRaWAN Delay Energy Performance Modelling

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A Location-based and Hierarchical Framework for Fast Consensus in Blockchain Networks

A Location-based and Hierarchical Framework for Fast Consens...

引用

ieee international conference on Hot Information-Centric Networking (HotICN)

作者： Hao Guo Wanxin Li Mark Nejad School of Software Northwestern Polytechnical University China University of Delaware U.S.A.

ISBN: (纸本)9781665405508

Blockchain-based IoT systems can manage IoT devices and achieve a high level of data integrity, security, and provenance. However, incorporating the existing consensus protocols in many IoT systems limits scalability and leads to high computational cost and network latency. We propose a hierar-chical and location-aware consensus protocol for IoI-blockchain applications inspired by the original Raft protocol to address these limitations. the proposed consensus protocol generates the consensus candidate groups based on nodes' individual reputation and distance information to elect the leader in each sub-layer blockchain and uses our threshold signature scheme to reach global consensus. Experimental results show that the proposed consensus protocol is scalable for large IoT applications and significantly reduces the communication cost, network latency, and agreement time by more than 50% compared with the Raft protocol for consensus processing.

关键词： Costs distributed ledger Scalability Data integrity Information-centric networking Prototypes Consensus algorithm

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the Energy-Data Dual Coverage in Battery-free sensor Networks 39

The Energy-Data Dual Coverage in Battery-free Sensor Network...

引用

39th ieee international conference on distributed computing systems (ICDCS)

作者： Shi, Tuo Cai, Zhipeng Li, Jianzhong Gao, Hong Harbin Inst Technol Harbin Peoples R China Georgia State Univ Atlanta GA 30303 USA

ISBN: (纸本)9781728125190

Battery-free sensor network is a new network architecture in which battery-free nodes can harvest energy from the ambient environment and the network lifetime is unlimited in terms of energy. However, the unbalanced ambient energy distribution results in a low data coverage quality of the battery-free sensor network. In this paper, we want to deploy artificial power stations in the monitored region, improve the energy distribution and achieve the energy-data dual coverage. We have investigated two energy-data dual coverage problems in this paper to meet different user requirements. We have proved that these two problems are at least NP-Hard. Two approximated algorithms are proposed accordingly to solve these two problems. the ratio bound and time complexity of these two algorithms are analyzed. Furthermore, extensive simulations are carried out to evaluate the performance of the algorithms. the experimental results show that the algorithms are effective and efficient.

关键词： Power generation Monitoring Batteries Approximation algorithms Wireless sensor networks Energy resources Hardware

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A Wireless sensor Network for remote monitoring of Photovoltaic panel: Aggregation, calibration and implementation 4

A Wireless Sensor Network for remote monitoring of Photovolt...

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4th international conference on Electrical and Information Technologies, ICEIT 2020

作者： Kaissari, Soufiane El Attaoui, Amina Jilbab, Abdelillah Bourouhou, Abdennaser Mohammed v University in Rabat Electronics Sensors Systems and NanoBiotechnologies STIS Center ENSET Morocco

ISBN: (数字)9781728143415

ISBN: (纸本)9781728143415

this work describes an implementation of a Wireless sensor Network-based system for real-time remote monitoring of photovoltaic (PV) panel. this proposed system consists on three parts: (a) sensor node, which contains five sensors, namely: ambient temperature, relative humidity, panel temperature, that has been calibrated in a certified laboratory, as well as a wind and light sensors. (b) the base station that transmits the aggregation data from sensor node to the user interface, and (c) the user interface application performed with LabVIEW. the wireless communication between the base station and the sensor node was ensured by a low cost, efficient, and low power consumption transceiver. the measurements obtained from the PV panel were transmitted using a new customize hybrid transmission mode that combines (a) the temporal mode (b) the request mode, and (c) the event mode. the proposed system successfully provides real-time monitoring of the PV panel to follow-up and failure diagnosis. © 2020 ieee.

关键词： Calibration

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An Efficient Trajectory-based Routing using Virtual Coordinates for Low-Power WSNs with Mobile Sinks 15

An Efficient Trajectory-based Routing using Virtual Coordina...

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

作者： Cao, Xiaofei Madria, Sanjay Missouri Univ Sci & Technol Dept Comp Sci Rolla MO 65409 USA

ISBN: (纸本)9781728105703

We present a trajectory-based routing (TBR) protocol, which efficiently routes data to a mobile sink on the shortest path in Wireless sensor Networks (WSNs). Using the idea of vector images (sensors representing pixels), we use two kinds of geometric shapes, hyperbola and arc as the smallest elements within the shortest routing path. Our protocol let sink nodes transmit the compressed routing request to source nodes through a routing path. Each individual node uses the DV-Hop (Distance Vector Hop) of the virtual anchor nodes as the dictionary which helps in efficiently decipher a compressed routing request. Finally, the routing path is distributed to each individual node within the path. the mobile sink can integrate updated routing path to the existing active path by sending new requests. Our protocol relaxes the constraints such as use of nodes' GPS information, the reliability of nodes, and also, places no restrictions on the sink's moving speed and direction. Using a WSN test-bed, and simulations on TOSSIM, we show that our trajectory-based routing protocol using DV-Hop is faster, reliable against node failures, provide location anonymity of nodes, and transmits less routing packets than two other known approaches.

关键词： Mobile sink Trajectory-based routing Wireless sensor networks

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Compact Fault Dictionaries for Efficient sensor Fault Diagnosis in IoT-enabled CPSs 4

Compact Fault Dictionaries for Efficient Sensor Fault Diagno...

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4th ieee international conference on Smart Internet of things, SmartIoT 2020

作者： Viktoros, Stavros A. Michael, Maria K. Polycarpou, Marios M. Dept. of Electrical and Computer Engineering Kios Research and Inovation Centre of Excellence University of Cyprus Cyprus

ISBN: (数字)9781728165141

ISBN: (纸本)9781728165141

the recent advances in the area of Internet-of-things (IoT) have allowed for the implementation of complex large-scale Cyber-Physical systems (CPSs). this phenomenon calls for efficient and scalable solutions for the new challenges being introduced. sensor fault diagnosis has emerged as a priority in various IoT-enabled CPSs, especially for critical infrastructure applications where multiple IoT devices might be in use. In this work, we examine the problem of building a compact fault dictionary which allows for efficient real-Time model-based multiple sensor fault detection and isolation. the problem under consideration is formulated as a combinatorial set problem and then efficiently encoded using Zero-suppressed binary Decision Diagrams (ZDDs), which are specialized data structures based on Boolean theory. the proposed approach is highly scalable with respect to the total number of sensor fault scenarios considered. Using the respective ZDD as a fault dictionary reduces the memory requirements by several orders of magnitude when compared to the conventional approach. this is achieved while allowing the fault isolation process to occur in linear time to the size of the dictionary. Our experimental results show that it takes between 0.002s to 0.012s for performing the fault isolation process in the range of tested systems. © 2020 ieee.

关键词： Cyber Physical System

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PotatoScanner - A Mobile Delay Tolerant Wireless sensor Node for Smart Farming Applications 15

PotatoScanner - A Mobile Delay Tolerant Wireless Sensor Node...

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

作者： Gernert, Bjoern Schlichter, Jan Wolf, Lars Tech Univ Carolo Wilhelmina Braunschweig Inst Operating Syst & Comp Networks Braunschweig Germany

ISBN: (纸本)9781728105703

Smart Farming has the goal to support farmers in their various activities, i.e., achieve best results in quality and quantity of their products, with low and efficient resource usage, working in sustainable manners etc. For that, a lot of information is needed, e.g., about the current state of the monitored agricultural area. Typically this requires a large number of sensors which collect important sensor data at predefined intervals. For further evaluation such data is usually processed in a central place, for which it must first be transferred from the field to a data sink at the farm premises. Cellular networks could be used for such data transmissions, but the network deployment in rural areas is costly with less likely revenues. thus, mobile operators are not eager to roll out their networks in rural areas so that they are often not well covered. In this paper we introduce PotatoScanner, a mobile Delay Tolerant Wireless sensor Node (DTWSN) that closes this gap and acts with the help of a field sprayer as a data mule for the collected data. In addition, PotatoScanner itself has sensors to obtain further information about the cultivated field. the paper provides an overview of the overall system and analyses the measurement data obtained in real operation over the past two years 2017 and 2018.

关键词： wireless sensor networks delay tolerant networking wireless sensor nodes smart farming precision farming field sprayer

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Design and Implementation of Internet of things+UAV Flight Monitoring and Management System

Design and Implementation of Internet of Things+UAV Flight M...

引用

ieee international conference on Automation, Electronics and Electrical Engineering (AUTEEE)

作者： Ning Baifeng Zhang Ke Shenzhen Power Supply Bureau Co. Ltd. Shenzhen China China Southern Power Grid Shenzhen Digital Power Grid Research Institute Co. Ltd Shenzhen China

ISBN: (纸本)9781665428408

In the application of Internet of things, UAV (Unmanned aerial vehicle) can be used in wireless image acquisition system, farmland information acquisition system, traffic monitoring system, infrared monitoring system and so on. With the extensive application of unmanned aerial vehicles in production and life, the need for effective supervision of unmanned aerial vehicles is increasingly urgent. According to the task requirements of UAV flight monitoring and control, an Internet of things+UAV flight monitoring and management system is designed. the system realizes the functions of real-time acquisition of navigation parameters, on-line adjustment of flight control parameters, track planning and echo, data storage and analysis, etc., and provides favorable guarantee for over-the-horizon flight. Providing UAV with flight monitoring, aviation meteorology, planning management, aviation information, airspace management, system management and other services can ensure UAV to fly safely and orderly.

关键词： Wireless communication Wireless sensor networks Navigation Instruments Memory Autonomous aerial vehicles Real-time systems

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Using the I2C bus to set up Long Range Wired sensor and Actuator Networks in Smart Buildings 4

Using the I2C bus to set up Long Range Wired Sensor and Actu...

引用

4th ieee international conference on computing, Communications and Security (ICCCS)

作者： Addabbo, Tommaso Fort, Ada Mugnaini, Marco Parrino, Stefano Pozzebon, Alessandro Vignoli, Valerio Univ Siena Dept Informat Engn & Math Siena Italy

ISBN: (纸本)9781728108759

the Inter Integrated Circuit (I2C) is one of the most common standards for serial data transmission between micro controllers, microprocessors and peripheral devices. Nowadays, many off-the-shelf devices are provided with an I2C interface, that can be then the easiest way to connect them to other devices through a wired connection, regardless from their features. While the setup of intelligent distributed architectures for Smart Buildings based on wireless communication channels may be straightforward, the chance to set up local area wired networks based on the I2C bus may be of great interest for example in case of noisy environments. Nevertheless, I2C is characterized by a very short range, with transmission distances generally lower than 10 m. the aim of this paper is then to suggest the use of the I2C bus for the realization of wired local area sensor and actuator networks, setting up a multi-Master and multi-Slave network architecture with transmission ranges up to 100 m. For this reason, the paper focuses on the problem of parasitic capacitances, proposing a possible hardware solution to deploy such a kind of architecture based on the use of ad-hoc components. At the same time, in order to propose a flexible architecture, the paper describes a novel solution to allow the transparent connection to the network of additional devices, avoiding the risk for address conflict.

关键词： Wired Networks sensor and Actuators I2C Serial Connection Smart Buildings

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A Generic Clique Based distributed Caching Approach For Wireless IoT Networks 4

A Generic Clique Based Distributed Caching Approach For Wire...

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4th international conference on Computer Science and Engineering (UBMK)

作者： Najmuldeen, Mustafa Gormus, Sedat Karadeniz Tech Univ Comp Engn Trabzon Turkey

ISBN: (纸本)9781728139647

In this paper, a distributed storage solution is presented with the aim of reducing the impact of wireless IoT traffic on the Internet backbone. this reduction is achieved by storing the sensor data within the wireless IoT network using codes with Maximum Distance Separable (MDS) properties. To achieve an efficient in-network distributed storage solution, the wireless IoT network is partitioned into groups of disjoint cliques with minimum overlap. Furthermore, the reliability aspects of this storage solution is improved by configuring the cliques in a way that the link outages are minimized.

关键词： IoT MDS Codes distributed Storage Cliques RPL

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