Blar i NTNU Open på forfatter "Heegaard, Poul Einar"

Viser treff 61-80 av 92

    • Prediksjon av feil i det norske strømnettet 

      Heistad, Fredrik; Kristensen, William Andreas (Master thesis, 2019)
      Utviklingen av smartgrid har ført til en enorm vekst i antallet sensorer og smarte målere i strømnettet. Disse enhetene tilgjengeliggjør store mengder data. Samtidig har det de siste årene skjedd store fremskritt innen ...

    • QoE Analysis of the Setup of Different Internet Services for FIFO Server Systems 

      Hoßfeld, Tobias; Varela, Martin; Heegaard, Poul Einar; Skorin-Kapov, Lea (Journal article; Peer reviewed, 2018)
      Queueing systems following a first-in-first-out (FIFO) strategy are well understood and various results are known for the response time of the system. However, the question arises how the results look like when taking into ...

    • QoE Beyond the MOS: An In-Depth Look at QoE via Better Metrics and their Relation to MOS 

      Hossfelt, Tobias; Heegaard, Poul Einar; Varela, Martin; Möller, Sebastian (Journal article; Peer reviewed, 2016)
      While Quality of Experience (QoE) has advanced very significantly as a field in recent years, the methods used for analyzing it have not always kept pace. When QoE is studied, measured or estimated, practically all the ...

    • Reliability analysis of cyber‐physical microgrids: Study of grid‐connected microgrids with communication‐based control systems 

      Barani, Mostafa; Vadlamudi, Vijay Venu; Heegaard, Poul Einar (Peer reviewed; Journal article, 2020)
      Due to the greater penetration of renewable energy resources and the increasing complexity of the distribution system, moving towards a smart distribution system is essential and achievable via advanced information and ...

    • RELSAD: A Python package for reliability assessment of modern distribution systems 

      Myhre, Stine Fleischer; Fosso, Olav B; Heegaard, Poul Einar; Gjerde, Oddbjørn (Peer reviewed; Journal article, 2022)
      The electrical power distribution system is under constant development and multiple changes will occur in the upcoming years. Through the integration of new technology such as Renewable Energy Resources (RES) and flexible ...

    • Resilience of communication networks to random failures and disasters: An optimization perspective 

      Rak, Jacek; Heegaard, Poul Einar; Helvik, Bjarne Emil (Peer reviewed; Journal article, 2020)
      Communication networks are subject to many challenges leading to single or multiple failures of its elements. Example failure scenarios include unintentional failures due to scheduled maintenance activities or massive ...

    • Rethinking Independence in Safety Systems 

      Gnanasekaran, Vahiny; Grøtan, Tor Olav; Bartnes, Maria; Heegaard, Poul Einar (Chapter, 2024)
      The independence in safety systems ensures that the rest of the OT system possesses the ability to resume normal operation or revert to a safe state during a failure. The requirement was previously sustained by isolating ...

    • Revealing the Dark Side of WebRTC Statistics Collected by Google Chrome 

      Ammar, Doreid; De Moor, Katrien; Heegaard, Poul Einar; Fiedler, Markus; Xie, Min (Chapter, 2016)
      Google Chrome provides a built-in tool to collectreal-time session-related performance statistics of Web-basedReal-Time Communication (WebRTC). Although the Chromestatistics have a number of ...

    • Review of the theory, principles, and design requirements of human-centric Internet of Things (IoT) 

      Ystgaard, Kaja Fjørtoft; Atzori, Luigi; Palma, David; Heegaard, Poul Einar; Bertheussen, Lene Elisabeth; Jensen, Magnus Rom; de Moor, Katrien Rachel W (Peer reviewed; Journal article, 2023)

    • Robustness of short-term load forecasting models for smart grids 

      Sandgrind Refvik, Håvard (Master thesis, 2020)
      Spenningsnivåer er en viktig faktor i den daglige driften av distribusjonsnett. Nå som smartgridet i Norge begynner å vokse med flere og flere sensorer innstallert i nettet, er det mulig å samle inn store mengder data. ...

    • Routing and load balancing in Internet of Things (IoT) 

      Steinkjer, Ole Marius (Master thesis, 2009)
      The assignment includes the following tasks 1. Study the Telenor Connected Object (COOS) infrastructure 2. Study existing load balancing techniques that are relevant for COOS 3. Make a model of COOS in order to investigate ...

    • Sacrificing Efficiency for Quality of Experience: YouTube’s Redundant Traffic Behavior 

      Sieber, Christian; Heegaard, Poul Einar; Hoßfeld, Tobias; Kellerer, Wolfgang (Chapter, 2016)
      Internet traffic reports show that YouTube is one of the major sources of data traffic world-wide. Furthermore, the data traffic shifts from mostly fixed landlines to cellular data connections where bandwidth is sparse and ...

    • Securing software systems in the health care domain 

      Kosmo, Monika Katrin (Master thesis, 2014)
      Cloud computing is a continuously emerging technology of which new areas of utilization is adopted. Among these, medical sensor networks are increasingly used for purposes like remote monitoring of the health condition of ...

    • Self-configured demonstrator of the Cross Entropy Ant System 

      Kristiansen, Tore André (Master thesis, 2007)
      Etter hvert som Internett har vokst har prosessen med å finne rett rutingvei blitt mer og mer komplisert. Fastsetting av metrikker som danner grunnlag for rutingprotokollens beregning av beste rutingvei blir oftest gjort ...

    • Service availability in the NFV Virtualized Evolved Packet Core 

      Mahmood, Kashif; Gonzalez, Andres Javier; Helvik, Bjarne Emil; Nencioni, Gianfranco; Heegaard, Poul Einar; Grønsund, Pål R. (Chapter, 2015)
      Network Function Virtualization (NFV) promises to transform the way telecom providers design and operate networks and network services. Virtualized Evolved Packet Core (vEPC) is one of the NFV use cases that has got most ...

    • Sharing is Power: Incentives for Information Exchange in Multi-Operator Service Delivery 

      Heegaard, Poul Einar; Biczok, Gergely; Toka, Lazio (Chapter, 2016)
      A majority of 5G verticals have the potential to generate large revenues, but are expected to have strict Quality of Service (QoS) guarantees, and are projected to be delivered as a service chain of multiple, independent ...

    • Simulation of Performance Scalability in Pervasive Systems 

      Berg, Hans Inge (Master thesis, 2006)
      As increasingly more services and devices become integrated into pervasive systems, future network topologies will be vastly more sophisticated with numerous heterogeneous devices interconnected. To integrate a new service ...

    • Simulation of Performance Scalability in Pervasive Systems 

      Berg, Hans Inge (Master thesis, 2006)
      As increasingly more services and devices become integrated into pervasive systems, future network topologies will be vastly more sophisticated with numerous heterogeneous devices interconnected. To integrate a new service ...

    • Simulation of the response time distribution of fault-tolerant multi-tier cloud services 

      Gullhav, Anders Nordby; Nygreen, Bjørn; Heegaard, Poul Einar (Journal article; Peer reviewed, 2016)
      We are considering the problem of obtaining the response time distribution of fault-tolerant multi-tier services. In the provision of software-as-a-service applications, the service provider is obliged to ensure a certain ...

    • Survivability analysis of a two-tier infrastructure-based wireless network 

      Xie, Lang; Heegaard, Poul Einar; Jiang, Yuming (Journal article, 2017)
      Network design and operation of a mobile network infrastructure, especially its base stations, need to consider survivability as a fundamental requirement. Quantifiable approaches to survivability analysis of such ...