12 research outputs found
IoT and Smart Cities: Modelling and Experimentation
Internet of Things (IoT) is a recent paradigm that envisions a near future, in which
the objects of everyday life will communicate with one another and with the users,
becoming an integral part of the Internet. The application of the IoT paradigm to
an urban context is of particular interest, as it responds to the need to adopt ICT
solutions in the city management, thus realizing the Smart City concept.
Creating IoT and Smart City platforms poses many issues and challenges. Building
suitable solutions that guarantee an interoperability of platform nodes and easy
access, requires appropriate tools and approaches that allow to timely understand
the effectiveness of solutions. This thesis investigates the above mentioned issues
through two methodological approaches: mathematical modelling and experimenta-
tion. On one hand, a mathematical model for multi-hop networks based on semi-
Markov chains is presented, allowing to properly capture the behaviour of each node
in the network while accounting for the dependencies among all links. On the other
hand, a methodology for spatial downscaling of testbeds is proposed, implemented,
and then exploited for experimental performance evaluation of proprietary but also
standardised protocol solutions, considering smart lighting and smart building scenarios.
The proposed downscaling procedure allows to create an indoor well-accessible
testbed, such that experimentation conditions and performance on this testbed closely
match the typical operating conditions and performance where the final solutions are
expected to be deployed
NASA/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program, 1985
The 1985 NASA/ASEE Summer Faculty Fellowship Research Program was conducted by Texas A&M University and the Johnson Space Center. The ten week program was operated under the auspices of the American Society for Engineering Education (ASEE). The faculty fellows spent the time at JSC engaged in research projects commensurate with their interests and background and worked in collaboration with NASA/JSC colleagues. This document is a compilation of the final reports of their research during the summer of 1985
Modelling message flows in Networked Lighting Control Systems using Trickle and CSMA
\u3cp\u3eLighting control applications have very strict latency and reliability requirements. Multihop wireless communication between lamps provides a low cost and flexible solution, but as networks grow large and dense, it becomes harder to satisfy these requirements. The Trickle algorithm has been proposed as a gossiping method for Wireless Sensor Networks. This work explores whether the process of generation of messages by Trickle and CSMA can be modelled and analyzed as a spatial Poisson process. We extended previous analyses of Trickle by refining the modelling of channel propagation and interference.\u3c/p\u3
Proceedings of the 7th International Conference EEDAL 2013 Energy Efficiency in Domestic Appliances and Lighting
This book contains the papers presented at the seventh international conference on Energy Efficiency in Domestic
Appliances and Lighting. EEDAL'2013 was organised in Coimbra, Portugal in September 2013. This major international
conference, which was previously been staged in Florence 1997, Naples 2000, Turin 2003, London 2006, B2e0r0l9in,
Copenhagen 2011 has been very successful in attracting an international community of stakeholders
dealing with residential appliances, equipment, metering liagnhdti ng (including manufacturers, retailers,
consumers, governments, international organisations aangde ncies, academia and experts) to discuss the progress
achieved in technologies, behavioural aspects and poliacineds , the strategies that need to be implemented to
further progress this important work.
Potential readers who may benefit from this book include researchers, engineers, policymakers,
and all those who can influence the design, selection, application, and operation of electrical appliances and lighting.JRC.F.7-Renewables and Energy Efficienc
Recent Advances in Wireless Communications and Networks
This book focuses on the current hottest issues from the lowest layers to the upper layers of wireless communication networks and provides "real-time" research progress on these issues. The authors have made every effort to systematically organize the information on these topics to make it easily accessible to readers of any level. This book also maintains the balance between current research results and their theoretical support. In this book, a variety of novel techniques in wireless communications and networks are investigated. The authors attempt to present these topics in detail. Insightful and reader-friendly descriptions are presented to nourish readers of any level, from practicing and knowledgeable communication engineers to beginning or professional researchers. All interested readers can easily find noteworthy materials in much greater detail than in previous publications and in the references cited in these chapters
Graduate Catalog, 1996-1999, New Jersey Institute of Technology
https://digitalcommons.njit.edu/coursecatalogs/1003/thumbnail.jp
Safety and Reliability - Safe Societies in a Changing World
The contributions cover a wide range of methodologies and application areas for safety and reliability that contribute to safe societies in a changing world. These methodologies and applications include: - foundations of risk and reliability assessment and management
- mathematical methods in reliability and safety
- risk assessment
- risk management
- system reliability
- uncertainty analysis
- digitalization and big data
- prognostics and system health management
- occupational safety
- accident and incident modeling
- maintenance modeling and applications
- simulation for safety and reliability analysis
- dynamic risk and barrier management
- organizational factors and safety culture
- human factors and human reliability
- resilience engineering
- structural reliability
- natural hazards
- security
- economic analysis in risk managemen