Search for dissertations about: "wireless computer communication"

Showing result 1 - 5 of 176 swedish dissertations containing the words wireless computer communication.

  2. 1. Using Existing Infrastructure as Support for Wireless Sensor Networks

    Author : Jonas Neander; Mats Björkman; Mikael Nolin; Jukka Mäki-Turja; Björn Knutsson; Mälardalens högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; wireless; sensor networks; communication; base station; asymmetric communication; multihop; network lifetime; Computer science; Datavetenskap; Datavetenskap;

    Abstract : Denna avhandling handlar om hur befintliga datorinfrastrukturer i t.ex. sjukhus och industrier kan avlasta sensornätverk med energikrävande uppgifter. Vi har forskat på olika aspekter som gör det möjligt att förlänga livslängden på dessa sensornätverk. READ MORE

  4. 2. Improving Low-Power Wireless Protocols with Timing-Accurate Simulation

    Author : Fredrik Österlind; Thiemo Voigt; Adam Dunkels; Per Gunningberg; Tarek F. Abdelzaher; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Low-Power Wireless Protocols; Wireless Sensor Networks; Contiki; Cooja; Simulation; Datavetenskap med inriktning mot datorkommunikation; Computer Science with specialization in Computer Communication;

    Abstract : Low-power wireless technology enables numerous applications in areas from environmental monitoring and smart cities, to healthcare and recycling. But resource-constraints and the distributed nature of applications make low-power wireless networks difficult to develop and understand, resulting in increased development time, poor performance, software bugs, or even network failures. READ MORE

  5. 3. Topics in Distributed Algorithms: On Wireless Networks, Distributed Storage and Streaming

    Author : Thomas Petig; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Message Passing; Wireless Networks; Time Division Multiple Access; Shared Memory; Fault-Tolerance; Streaming; NP-Hardness; Distributed Algorithm; Optimisation; TDMA;

    Abstract : Distributed algorithms are executed on a set of computational instances. Werefer to these instances as nodes. Nodes are runningconcurrently and are independent from each other. Furthermore, they have their own instructions and information. READ MORE

  6. 4. Centralized Routing for Prolonged Network Lifetime in Wireless Sensor Networks

    Author : Ewa Hansen; Mats Björkman; Mikael Nolin; Dag Nyström; Thiemo Voigt; Mälardalens högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Wireless sensor networks; routing; energy efficiency; asymmetric communicaiton; communication; power consumption; computer networks; trådlösa sensornät; trådlös; kommunikation; energikonsumtion; Computer science; Datavetenskap; Computer Science; datavetenskap;

    Abstract : In this thesis centralized routing methods for wireless sensor networks have been studied. The aim has been to prolong network lifetime by reducing the energy consumed by sensor-node communication.Wireless sensor networks are rapidly becoming common in application areas where information from many sensors is to be collected and acted upon. READ MORE

  7. 5. Reliable Information Exchange in IIoT : Investigation into the Role of Data and Data-Driven Modelling

    Author : Mehrzad Lavassani; Tingting Zhang; Mikael Gidlund; Ulf Jennehag; Christer Åhlund; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Internet of Things; Industrial Automation; Data Analytics; Data-Driven Modelling; Distributed Modelling; Industrial Wireless Sensor Networks; Wireless Sensor Networks; Industrial Monitoring Framework; Reliability; Real-Time;

    Abstract : The concept of Industrial Internet of Things (IIoT) is the tangible building block for the realisation of the fourth industrial revolution. It should improve productivity, efficiency and reliability of industrial automation systems, leading to revenue growth in industrial scenarios. READ MORE