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Recent advancements related to device to device (D2D) communication make it possible for a transmitting node to dynamically select the interface to be used for data transfers locally, without traversing any network infrastructure. In this scenario, a controller is identified, whose goal is to manage the D2D connection after its establishment. The software defined networking paradigm makes it possible...
This paper proposes two non-uniform quantization schemes and also introduces an implementation system based on Software Defined Radio (SDR) consisting of GNU Radio and Universal Software defined Radio Peripheral (USRP) to sense a spectrum. In cognitive radio (CR) systems, detection and error probability are representative indicators of system performance. These performance indicators are influenced...
Accessing the Internet through Wi-Fi networks offers an inexpensive alternative for offloading data from mobile broadband connections. Businesses such as fast food restaurants, coffee shops, hotels, and airports, provide complimentary Internet access to their customers through Wi-Fi networks. Clients can connect to the Wi-Fi hotspot using different wireless devices. However, network administrators...
This paper describes and verifies a method of implementing bit error rate (BER) calculation for FPGA-based physical layer security techniques for Software Defined Radio (SDR). Specifically, we describe an independent source signal processing architecture for an efficient calculation of BER for wireless communication modules across the transmitter and receiver nodes. The source components at the transmitter...
The increased popularity of IEEE 802.11 LANs (WLANs) in residential (home) environments leads to dense, unplanned and thus chaotic deployments. Access Points (APs) are frequently deployed unfavorably in terms of radio coverage and use interfering frequency/power settings. In fact, in some parts of a one's apartment the usage of the neighbor's AP might be preferred as it might provide better signal...
In this paper, we presented the design of low-cost, compact and wireless 12 lead Electrocardiogram analog front-end (AFE) system using TI ADS 1198. ECG analog front-end (AFE) systems are designed with ASICs or custom designed ICs which are too expensive to be used. The main components of a conventional ECG system include instrumentation amplifiers, operational amplifiers that implement active filters...
This paper presents the ongoing work of applying the project-based learning approach to teaching IoT technologies in an advanced embedded networking course, which is offered to electrical and computer engineering students. The emphasis of this course is on teaching the prominent wireless networking technologies IEEE 802.11 (WiFi) for the IoT and the development of the IoT applications. Microcontrollers...
In order to solve the problem of ECG signal detection, wireless sensor network is designed with ZigBee technology. This article describes the details of the system structure, the design of hardware and software and the communication methods. we can realize wireless detection of human ECG signal through the wireless sensor system. Design the host computer software system based on Qt framework can achieve...
In view of short distance, inaccurate counting and slow speed of the intelligent meter reading system, the design scheme of a remote intelligent meter reading system based on GPRS is put forward. The hardware of system mainly includes four parts: GPRS wireless communication module, concentrator, collector, and monitoring center. The communication layer adopts double layer structure, the upper layer...
A tele-monitoring system, based on a soft transducer network, developed by students of the Course "Measurements on Communications Network" (MRC), at the Department of Electrical Engineering and Information Technology, University of Naples Federico II, is presented. This project is the result of an innovative education approach for (i) overcoming specialization of single Courses on different...
This article describes the methods and tools to verify the location of nodes in wireless sensor networks. Software product that allows to analyze the positioning based on the distance with different algorithms is proposed. As a result of simulation the next statistical output variables are defined: percentage of nodes, which have position determined; minimum, maximum and average error in assessing...
Time synchronization, aiming to provide a common timescale among distributed sensor nodes, is a key enabling technology for many applications, such as collaborative condition monitoring and localization detection. Due to the complexity of time synchronization in wireless sensor networks, the Discrete Event Simulator is recommended to adopt resulting from the feature that the behavior of a complex...
This paper presents a technique to integrate wireless field devices using WirelessHART and ISA100.11a technologies into a condition monitoring system based on Wonderware InTouch software. The proposed integration brings the data from a field site with digital multi-device networking for automatic data collection to support the condition monitoring of instruments or smart connected equipment in preparation...
Precision time synchronization is critical for distributed sensing, and coordinated actuation in various low-range wireless applications in Internet of Things and Robotics. The state-of-the-art time synchronization protocol however, known as Precision Time Protocol (PTP) is designed for wired networks. In this work, we make an effort to enable PTP for Low Range Wireless Personal Area Networks (LR-WPAN)...
This paper presents the design and implementation of an Internet of Thing (IoT)-based system for indoor localization using Bluetooth Low Energy (BLE) technology. Our solution consists of two main systems: an acquisition system and a central server, under the Client-Server paradigm and the IoT philosophy. We report the development of different modules: measurement (Bluetooth beacons), data aggregation...
The study presents a multi-disciplinary application of the Internet of Things (IoT) benefiting both the engineering and music community. A music composition algorithm based on a finite-state machine was designed to receive and manipulate wind turbine voltage output data into a musically aesthetic composition. The algorithm adapts common western music theory and imposes these limitations on the wind...
Along with the growth of the Internet of Things (IoT), the number of wireless devices and mobile nodes significantly increases and they are connected among them over wireless links. Many application software and network system software for these wireless devices/mobile nodes are being developing. However, we cannot confirm a wireless connection between the two adjacent devices, the network topology...
An underground wireless attendance system is designed based on radio frequency identification and wireless sensor network technology. The advantages of wireless sensor network have been applied in the attendance system, mainly solving the problems of wiring complexity and error-prone information collection, among other issues in the current attendance system. This system consists of radio frequency...
The proposed system is a self-balancing system based on STM32F103 using Cortex-M3 core. Firstly, MPU6050 and hall encoder are utilized to measure angle and speed respectively. These sensors can meet the requirement of real time. Then, digital filtering algorithm and kalman algorithm are adopted to process the digital singal. Finally, the stepping motor is used to drive the whole system. The experimental...
Various current trends such as ever growing population have effectively promoted the growth of Wireless Body Area Network (WBAN). Most of the existing works in WBAN focus on theoretical performance enhancement, whereas works in implementation which is of significance in validation and further research are pretty rare. Therefore, a reliable and efficient system designed both in hardware and software...
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