Sökning: "Karl-Johan Grinnemo"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Karl-Johan Grinnemo.

  1. 1. A Study of Partially Reliable Transport Protocols for Soft Real-Time Applications

    Författare :Karl-Johan Grinnemo; Anna Brunström; Bengt Ahlgren; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport protocol; internet; partial reliability; retransmission-based; real-time; simulation; taxonomy; survey; Computer Science; Datavetenskap;

    Sammanfattning : The profileration of multimedia applications, such as streaming video, teleconferencing, and interactive gaming has created a tremendous challenge for the traditional transport protocols of the Internet – UDP and TCP. Specifically, many multimedia applications are examples of soft real-time applications. LÄS MER

  3. 2. Transport Services for Soft Real-Time Applications in IP Networks

    Författare :Karl-Johan Grinnemo; Anna Brunström; Reiner Ludwig; Philippe Owezarski; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transport protocol; congestion control; partial reliability; soft real-time; SCTP; failover; SIGTRAN; head-of-line blocking; Computer science; Datavetenskap; Datavetenskap; Computer Science;

    Sammanfattning : In recent years, Internet and IP technologies have made inroads into almost every communication market ranging from best-effort services such as email and Web, to soft real-time applications such as VoIP, IPTV, and video. However, providing a transport service over IP that meets the timeliness and availability requirements of soft real-time applications has turned out to be a complex task. LÄS MER

  4. 3. Improving the Energy Efficiency of Cellular IoT Device

    Författare :Muhammad Tahir Abbas; Karl-Johan Grinnemo; Johan Eklund; Mohammad Rajiullah; Stefan Alfredsson; Peter Sjödin; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CIoT; 3GPP; energy saving; mMTC; NB-IoT; LTE-M; EC-GSM- IoT; Computer Science; Datavetenskap;

    Sammanfattning : Cellular Internet of Things (CIoT) has emerged as a promising technology to support applications that generate infrequent data. One requirement on these applications, often battery-powered devices, is low energy consumption to enable extended battery life. LÄS MER

  5. 4. Achieving Low Latency and High Throughput over Cellular Internet Connections

    Författare :Habtegebreil Kassaye Haile; Anna Brunström; Karl-Johan Grinnemo; Per Hurtig; Simone Ferlin; Markku Kojo; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; QUIC; BBR; Copa; TCP; Congestion control; Throughput; Queuing Delay; Performance Evaluation; 4G; 5G; Kalman Filter; Computer Science; Datavetenskap;

    Sammanfattning : The continuous increase in the number and type of Internet services and their requirements for improved QoS has motivated the steady evolution  of cellular networks towards the current fifth generation (5G) systems. However, updating the network to 5G is insufficient to satisfy application requirements since performance limitations can also exist in the transport used by the applications. LÄS MER

  7. 5. Offline Task Scheduling in a Three-layer Edge-Cloud Architecture

    Författare :Ayeh Mahjoubi; Karl-Johan Grinnemo; Arunselvan Ramaswamy; Alessandro Papadopoulos; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; task offloading; task scheduling; edge computing; internet of things; optimization techniques; heuristics; meta-heuristics; Computer Science; Datavetenskap;

    Sammanfattning : Internet of Things (IoT) devices are increasingly being used everywhere, from the factory to the hospital to the house to the car. IoT devices typically have limited processing resources, so they must rely on cloud servers to accomplish their tasks. Thus, many obstacles need to be overcome while offloading tasks to the cloud. LÄS MER