Search results for "550"
showing 10 items of 1192 documents
Modelling and Analysis of Non-Stationary Mobile Fading Channels Using Brownian Random Trajectory Models
2014
Doktorgradsavhandling i informasjons- og kommunikasjonsteknologi, Universitetet i Agder, Grimstad, 2014 The demanding mobility features of communication technologies call for the need to advance channel models (among other needs), in which non-stationary aspects of the channel are carefully taken into consideration. Owing to the mathematical complexity imposed by mobility features of the mobile station (MS), the number of non-stationary channel models proposed in the literature is very limited. The absence of a robust trajectory model for capturing the mobility features of the MS also adds to the depth of this gap. Not only statistically non-stationary channels, but also physically non-stat…
Channel Access and Reliability Performance in Cognitive Radio Networks:Modeling and Performance Analysis
2016
Doktorgradsavhandling ved Institutt for Informasjons- og kommunikasjonsteknologi, Universitetet i Agder According to the facts and figures published by the international telecommunication union (ITU) regarding information and communication technology (ICT) industry, it is estimated that over 3.2 billion people have access to the Internet in 2015 [1]. Since 2000, this number has been octupled. Meanwhile, by the end of 2015, there were more than 7 billion mobile cellular subscriptions in the world, corresponding to a penetration rate of 97%. As the most dynamic segment in ICT, mobile communication is providing Internet services and consequently the mobile broadband penetration rate has reache…
Potential factors influencing adoption of a service oriented architecture : experiences from specialist healthcare in Norway
2008
Masteroppgave i informasjonssystemer- Universitetet i Agder 2008 Specialist healthcare in Norway is an important part of the medical care ”value chain” financed by the Norwegian government through the Ministry of Health and Care Services. The specialist healthcare sector in Norway is facing increasing challenges amongst others relating to; national reporting, frequent organizational and process changes, budget cuts, collaboration across organizational borders and judicial issues related to accessing sensitive information. Previous research in other countries has shown the healthcare sector as a lateadopter when it comes to using new IT paradigms and IT technologies to solve collaboration ch…
Turning Common Operational Picture Data into Double-loop Learning from Crises – can Vision Meet Reality?
2021
Norwegian Research Council Grant #295848
Big Data Analytics Affordances for Social Innovation: A Theoretical Framework
2021
This paper proposes a theoretical framework to identify the mechanisms by which actors perceive the affordances of big data analytics (BDA) and how institutional voids and supports enable or hinder the actualisation of those perceived affordances. In doing so, we contribute to identifying the missing link needed to understand the social innovation process in relation to BDA. The framework paves the ground towards understanding the institutionalization process of social innovation and its implications for research and practice.
User-centred Design and Evaluation of Health Information Technology
2016
Doktorgradsavhandling i informasjons- og kommunikasjonsteknologi, Fakultet for teknologi og naturvitenskap, Universitetet i Agder Health information technologies play an important role in exchange of information and coordination of continuity of care in health care services. This thesis explores the approach of user-centred design and evaluation in the development of health information technology, with the main research focus on end-user involvement. A study on user-centred design and evaluation in the externally funded research projects United4Health and eHealth- extended Care Coordination was conducted. In addition, the internal project Visually impaired users touching the screen - A user…
Grid Interaction Performance Evaluation of BIPV and Analysis with Energy Storage on Distributed Network Power Management
2017
Doktorgradsavhandling ved Universitetet i Agder, Institutt for informasjons- og kommunikasjonsteknologi, 2017 This research focuses on analysis of photovoltaic (PV) based active generator in microgrid and its utilization in not only for operational planning of the power system but also for instantaneous power flow management in the smart grid environment. The application of this system is part of a solution on handling a large scale deployment of grid connected distributed generators, especially PV system. By implementing the PV based active generator, it will be very flexible able to manage the power delivery from the active generator sources (e.g. PV system, energy storage technologies, a…
Languagelab 1.1 user manual
2013
Manual for the LanguageLab platform
Design of Mobile Radio Channel Simulators Using the Iterative Nonlinear Least Square Approximation Method with Applications in Vehicle-to-X Communica…
2015
Doktorgradsavhandling i informasjons- og kommunikasjonsteknologi, Universitetet i Agder, 2015 Vehicle-to-X (V2X) communication systems are expected to provide tremendous benefits associated with the safety and traffic efficiency on roads. The successful deployment of emerging technologies like V2X requires channel models accurately representing fading statistics in environments where those technologies are used. The accuracy is, of course, a major concern when adapting or developing a suitable channel model for test and evaluation purposes. However, it is also important to take into account the simplicity of a channel model, which is crucial for efficient numerical computations and computer…
Managing data and information quality in construction engineering : a system design approach
2014
Doctoral dissertation, Faculty of Economics and Social Sciences, University of Agder 2014 Following the ADR method made it possible not only to develop a tool, but also to formulate design principles and abstract the findings to a generalizable level. This study contributes to knowledge and practice in several ways. First, I offer five design principles for DQ/IQ assessment tools. These design principles are specifically aimed at mitigating the unavoidable challenges and their consequences in construction engineering projects. By accepting these unavoidable challenges and consequences and subsequently providing means for managing the results in a controlled manner, these principles makes it…