Distributed Hybrid Simulation of the Internet of Things and Smart Territories

This paper deals with the use of hybrid simulation to build and compose heterogeneous simulation scenarios that can be proficiently exploited to model and represent the Internet of Things (IoT). Hybrid simulation is a methodology that combines multiple modalities of modeling/simulation. Complex scenarios are decomposed into simpler ones, each one being simulated through a specific simulation strategy. All these simulation building blocks are then synchronized and coordinated. This simulation methodology is an ideal one to represent IoT setups, which are usually very demanding, due to the heterogeneity of possible scenarios arising from the massive deployment of an enormous amount of sensors and devices. We present a use case concerned with the distributed simulation of smart territories, a novel view of decentralized geographical spaces that, thanks to the use of IoT, builds ICT services to manage resources in a way that is sustainable and not harmful to the environment. Three different simulation models are combined together, namely, an adaptive agent-based parallel and distributed simulator, an OMNeT++ based discrete event simulator and a script-language simulator based on MATLAB. Results from a performance analysis confirm the viability of using hybrid simulation to model complex IoT scenarios.Comment: arXiv admin note: substantial text overlap with arXiv:1605.0487

Towards Sustainable Urban Futures: Exploring Environmental Initiatives in Smart Cities

Environmentally sustainable smart cities have emerged as a promising approach to address the challenges of urbanization while promoting sustainable development and enhancing residents' quality of life. This research article presents the key findings of a comprehensive study that explores the various aspects and initiatives found in environmentally sustainable smart cities.Renewable energy plays a pivotal role in these cities, with a strong emphasis on harnessing solar, wind, and geothermal power. Investments in clean energy infrastructure, such as solar panels, wind farms, and geothermal plants, significantly reduce reliance on fossil fuels and contribute to lower carbon emissions.Energy efficiency is another critical aspect of sustainable smart cities. These cities prioritize the use of smart grids for optimized energy distribution, smart meters for real-time energy monitoring and control, and energy-efficient buildings equipped with insulation, lighting, and HVAC systems that minimize energy consumption.Smart transportation is a key initiative in environmentally sustainable smart cities, focusing on reducing traffic congestion and air pollution. Electric vehicles (EVs) are promoted, accompanied by the development of charging infrastructure. Intelligent transportation systems aid in effective traffic management, while active transportation modes such as cycling, walking, and public transportation are encouraged.Efficient waste management systems are implemented to minimize landfill waste and promote recycling and composting. Smart waste bins equipped with sensors optimize waste collection routes, reduce littering, and provide real-time data on fill levels, aiding in effective waste management.Water management strategies are prioritized to conserve this precious resource. Smart water meters monitor consumption patterns, rainwater harvesting systems are implemented, water-efficient practices are promoted in buildings, and advanced leak detection technologies minimize water loss.Green spaces and biodiversity conservation are fundamental in environmentally sustainable smart cities. By integrating parks, gardens, rooftop greenery, and urban forests, these cities enhance residents' well-being, improve air quality, and provide habitats for wildlife, thus promoting biodiversity.Data analytics and the Internet of Things (IoT) play a crucial role in monitoring and optimizing various city systems. Real-time data collection and analysis enable effective management of energy usage, traffic flow, waste management, and other infrastructure, facilitating informed decision-making and resource allocation.Citizen engagement is fostered in environmentally sustainable smart cities. Platforms for citizen participation enable residents to provide feedback, report issues, and actively contribute to decision-making processes related to urban planning, energy conservation, waste management, and other sustainability initiatives.The implementation of these strategies in environmentally sustainable smart cities aims to reduce carbon footprints, enhance resource efficiency, improve air and water quality, and create healthier and more livable urban environments. By embracing technology, innovation, and citizen engagement, these cities pave the way for a sustainable and resilient future

Internet of Things: A Review of Surveys Based on Context Aware Intelligent Services

The Internet of Things (IoT) has made it possible for devices around the world to acquire information and store it, in order to be able to use it at a later stage. However, this potential opportunity is often not exploited because of the excessively big interval between the data collection and the capability to process and analyse it. In this paper, we review the current IoT technologies, approaches and models in order to discover what challenges need to be met to make more sense of data. The main goal of this paper is to review the surveys related to IoT in order to provide well integrated and context aware intelligent services for IoT. Moreover, we present a state-of-the-art of IoT from the context aware perspective that allows the integration of IoT and social networks in the emerging Social Internet of Things (SIoT) term.This work has been partially funded by the Spanish Ministry of Economy and Competitiveness (MINECO/FEDER) under the granted Project SEQUOIA-UA (Management requirements and methodology for Big Data analytics) TIN2015-63502-C3-3-R, by the University of Alicante, within the program of support for research, under project GRE14-10, and by the Conselleria de Educación, Investigación, Cultura y Deporte, Comunidad Valenciana, Spain, within the program of support for research, under project GV/2016/087. This work has also been partially funded by projects from the Spanish Ministry of Education and Competitivity TIN2015-65100-R and DIIM2.0 (PROMETEOII/2014/001)

Internet of Things-aided Smart Grid: Technologies, Architectures, Applications, Prototypes, and Future Research Directions

Traditional power grids are being transformed into Smart Grids (SGs) to address the issues in existing power system due to uni-directional information flow, energy wastage, growing energy demand, reliability and security. SGs offer bi-directional energy flow between service providers and consumers, involving power generation, transmission, distribution and utilization systems. SGs employ various devices for the monitoring, analysis and control of the grid, deployed at power plants, distribution centers and in consumers' premises in a very large number. Hence, an SG requires connectivity, automation and the tracking of such devices. This is achieved with the help of Internet of Things (IoT). IoT helps SG systems to support various network functions throughout the generation, transmission, distribution and consumption of energy by incorporating IoT devices (such as sensors, actuators and smart meters), as well as by providing the connectivity, automation and tracking for such devices. In this paper, we provide a comprehensive survey on IoT-aided SG systems, which includes the existing architectures, applications and prototypes of IoT-aided SG systems. This survey also highlights the open issues, challenges and future research directions for IoT-aided SG systems