Jiri Misurec

Measurements and evaluation of PLC modem with G3 and PRIME standards for Street Lighting Control

The paper surveys narrowband power line communications (PLCs) in the context of Smart Grid and remote Street Lighting Control. The specifications G3-PLC and PRIME are discussed. The field test results and data rate measurements are presented for different scenarios. They demonstrate the problems encountered when the PLC signal is necessary to be sent through the switchgear, complicated topology, noisy topology and topology similar to simple street-light topology.

Random Channel Generator for Indoor Power Line Communication

The paper deals with creating an indoor power line model based on random parameters. This model approximates the real parameters of the power line communication with sufficient precision. A detailed analysis of earlier and current research in power line communication modelling, especially for power line models, is described. Measurement of transmission line parameters and power line model verification follows. Based on model analysis and load impedance measurement, a mathematical description of the model is designed. A reference model for different scenarios is realized too. The last part gives the analysis of this model and simulation results.

A Harmonized Perspective on Transportation Management in Smart Cities: the Novel IoT-Driven Environment for Road Traffic Modeling

The unprecedented growth of today’s cities together with increased population mobility are fueling the avalanche in the numbers of vehicles on the roads. This development led to the new challenges for the traffic management, including the mitigation of road congestion, accidents, and air pollution. Over the last decade, researchers have been focusing their efforts on leveraging the recent advances in sensing, communications, and dynamic adaptive technologies to prepare the deployed road traffic management systems (TMS) for resolving these important challenges in future smart cities. However, the existing solutions may still be insufficient to construct a reliable and secure TMS that is capable of handling the anticipated influx of the population and vehicles in urban areas. Along these lines, this work systematically outlines a perspective on a novel modular environment for traffic modeling, which allows to recreate the examined road networks in their full resemblance. Our developed solution is targeted to incorporate the progress in the Internet of Things (IoT) technologies, where low-power, embedded devices integrate as part of a next-generation TMS. To mimic the real traffic conditions, we recreated and evaluated a practical traffic scenario built after a complex road intersection within a large European city.

Capturing Energy Meter Data over Secured Power Line

The following paper describes the technological background necessary for automated data collection from any energy meter installed on the clients side of the electrical distribution chain. We focuse on standardized Power Line technologies such as Power Line Communication (PLC), Broadband Power Line (BPL) and Home-Plug that may work on its own or provide the base for upper level communication suites such as TCP/IP. They might be a high-efficient solution to the automation of energy data capture for both home and corporation usage. Since energy data represent a highly- sensitive bucket of data, both hardware and software solutions need to be strongly protected. The paper outlines the steps in hardware implementation of the AES cryptographic algorithm as well as its use in overall automatic measurement system.

Audio Digital Watermarking Algorithm Based on SVD in MCLT Domain

We present a digital audio signal watermarking method based on singular value decomposition, which works in the transform domain, especially in the modulated complex lapped transform (MCLT) domain. This method does not require the original audio signal for watermark extraction. The experimental test shows much robustness as regards manipulation during common audio signal processing.

Analysis and Experimental Evaluation of Power Line Transmission Parameters for Power Line Communication

Abstract The article describes a way of evaluating the power line channel frequency response and input impedance by means of the linear time-invariant (LTI) power line generator. Two possible methods are introduced for the calculation of primary parameters: the first method depends on the physical realization and physical dimension of the cable, and the second method is derived from the data provided by typical electrical cable manufacturers. Based on these methods, a comparison of transfer functions was made. This is followed by measurement evaluation and numerical verification on a simple topology

Noise modeling for power line communication model

Detailed knowledge of the interference scenario is necessary for power line communication (PLC) systems. PLC model with appropriate noise model creates the basics in a way of searching for the most powerful coding and modulation techniques. This paper brings an overview of PLC communication model focusing mainly on a noise scenario. Finally, a blocks of the PLC communication model are mentioned and the PLC simulation model is created concerning all major negative influences of the PLC environment.

Using genetic algorithm for advanced municipal waste collection in Smart City

The Internet of Things (IoT), as expected infrastructure for envisioned concept of Smart City, brings new possibilities for the city management. IoT vision introduces promising and economical solutions for massive data collection and its analysis which can be applied in many domains and so make them operating more efficiently. In this paper, we are discussing one of the most challenging issues - municipal waste-collection within the Smart City. To optimize the logistic procedure of waste collection, we use own genetic algorithm implementation. The presented solution provides calculation of more efficient garbage-truck routes. As an output, we provide a set of simulations focused on mentioned area. All our algorithms are implemented within the integrated simulation framework which is developed as an open source solution with respect to future modifications.

Design of secure communication in network with limited resources

The article deals with the design of secure communication for terminal devices in the energy sector via networks with limited resources. The key exchange and encryption method were selected in terms of security and energy consumption. Energy consumption needs to be solved for security methods to be implemented into low-power microcontrollers. An analysis of Public Key Cryptography for implementation into these microcontrollers was realized too. Finally, a library for basic and modular arithmetic operations was realized, and memory size and computational requirements were measured. The designed concept of secure communication can be used for future integration into Smart Grid networks.

Audio Signal Watermarking in MCLT Domain with the Aid of 2D Pattern

This article describes a new robust method for digital audio signal watermarking, which exploits the MCLT (modified complex lapped transform). Magnitude components of the audio signal in the MCLT domain are exploited for watermark embedding. By adaptive adjustment of the coefficient of robustness, such changes in the magnitude of the audio signal components are achieved and the maximal watermark robustness with minimal distortion of the original data is assured