A Local 3D Voronoi-Based Optimization Method for Sensor Network Deployment in Complex Indoor Environments

Optimal sensor network deployment in built environments for tracking, surveillance, and monitoring of dynamic phenomena is one of the most challenging issues in sensor network design and applications (e.g., people movement). Most of the current methods for sensor network deployment and optimization are empirical and they often result in important coverage gaps in the monitored areas. To overcome these limitations, several optimization methods have been proposed in the recent years. However, most of these methods oversimplify the environment and do not consider the complexity of 3D architectural nature of the built environments specially for indoor applications (e.g., indoor navigation, evacuation, etc.). In this paper, we propose a novel local optimization algorithm based on a 3D Voronoi diagram, which allows a clear definition of the proximity relations between sensors in 3D indoor environments. This proposed structure is integrated with an IndoorGML model to efficiently manage indoor environment components and their relations as well as the sensors in the network. To evaluate the proposed method, we compared our results with the Genetic Algorithm (GA) and the Covariance Matrix Adaptation Evolution Strategy (CMA-ES) algorithms. The results show that the proposed method achieved 98.86% coverage which is comparable to GA and CMA-ES algorithms, while also being about six times more efficient.

Smart Wireless Acoustic Sensor Network Design for Noise Monitoring in Smart Cities

This Special Issue is focused on all the technologies necessary for the development of an efficient wireless acoustic sensor network, from the first stages of its design to the tests conducted during deployment; its final performance; and possible subsequent implications for authorities in terms of the definition of policies. This Special Issue collects the contributions of several LIFE and H2020 projects aimed at the design and implementation of intelligent acoustic sensor networks, with a focus on the publication of good practices for the design and deployment of intelligent networks in any locations.

Evolution of wireless sensor network design from technology centric to user centric: An architectural perspective

Wireless sensor networks form the crux of a wide range of automated applications that are gaining popularity with every passing day. The journey of wireless sensor networks has seen simple sensory monitoring to sensing-processing-actuation based end-to-end applications to the design and deployment of highly sophisticated service-oriented use cases. This highly disruptive field has seen rapid transformations to gain insights and assess the relative merits. Demerits of competing design strategies, it very important to know the evolutionary milestones this technology has undergone in achieving the state-of-the-art in this area. In this article, a systematic review is carried out that captures the evolution of architectural designs and developments in wireless sensor network–based applications. This review delves into the relative pros and cons of various epochs in developments and delineates the future areas of research in wireless sensor network design paradigm.

TRANSVERSAL COMPETENCIES IN ICT STUDY PROGRAMS: AN INTRODUCTION TO CURRENT RESEARCH

The research is carried out within the framework of the doctoral thesis “Methodology and tools for sensor network design”, where transversal competencies and their assessment are related to ICT study programs, such as “Mechatronics” implemented by Rezekne Academy of Technologies and based on Smart Specialization Strategy (RIS3) ICT and smart materials, technologies and engineering systems.Today's labour market needs competitive employees who are able to analyze situations with systematic and design thinking. The education system needs to change in line with the requirements of the Fourth Industrial Revolution, so prospective workers need to have knowledge of interdisciplinary and multidisciplinary processes.The aim of this research is to determine the transversal competencies of ICT study programs. The monographic and descriptive method has been applied for studying scientific literature. The research looks at the competencies and skills that are needed for ICT graduates, such as digital, innovative, entrepreneurship, research, communication, critical thinking, human relation, leadership, planning, problem solving.