Sökning: "ARQ"

Visar resultat 1 - 5 av 22 avhandlingar innehållade ordet ARQ.

  1. 1. On Performance Analysis of Retransmission Schemes with Fading Channels

    Författare :Peter Larsson; Lars Kildehøj Rasmussen; Mikael Skoglund; Leszek Szczecinsky; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatic repeat request; ARQ; hybrid-arq; retransmission schemes; Telecommunication; Telekommunikation;

    Sammanfattning : Future wireless communication systems and services bring increased performance demands, with respect to data-rate(s), reliable communication, (stochastic) real-time guarantees, and more. In this context, not only new communication schemes are needed, but also more capable performance analysis methods are essential. LÄS MER

  3. 2. Architectures and Protocols for Performance Improvements of Real-Time Networks

    Författare :Kristina Kunert; Magnus Jonsson; Elisabeth Uhlemann; Eduardo Tovar; Högskolan i Halmstad; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Real-time communication; predictable deadline guarantees; real-time scheduling analysis; timing analysis; admission control; deterministic medium access; MAC; Quality of Service parameters; reliability; redundancy; retransmission scheme; ARQ; truncated ARQ; Automatic Repeat Request; wireless networks; IEEE 802.11; IEEE 802.15.4; fibre-optic networks; AWG; multichannel networks; industrial communications; embedded systems; Computer engineering; Datorteknik;

    Sammanfattning : When designing architectures and protocols for data traffic requiring real-time services, one of the major design goals is to guarantee that traffic deadlines can be met. However, many real-time applications also have additional requirements such as high throughput, high reliability, or energy efficiency. LÄS MER

  4. 3. Hybrid ARQ using serially concatenated block codes for real-time communication : an iterative decoding approach

    Författare :Elisabeth Uhlemann; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; serially concenated block codes; ARQ; trellis; iterative detection; real-time;

    Sammanfattning : .... LÄS MER

  5. 4. Improving User Experience of Internet Services in Cellular Networks

    Författare :Annika Klockar; Brunström Anna; Patrik Arlos; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Internet; cellular networks; wireless; TCP; ARQ; handover; queuing; CoMP; application utility; user selection; scheduling; fairness; Datavetenskap; Computer Science;

    Sammanfattning : The Internet has grown enormously since the introduction of the World Wide Web in the early 90's. The evolution and wide spread deployment of cellular networks have contributed to make the Internet accessible to more people in more places. The cellular networks of today offer data rates high enough for most Internet services. LÄS MER

  7. 5. Hybrid ARQ Using Serially Concatenated Block Codes for Real-Time Communication : An Iterative Decoding Approach

    Författare :Elisabeth Uhlemann; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Real-Time Communications; Hybrid ARQ; Iterative Decoding; QoS; Deadline Dependent Coding; Telecommunication theory; Telekommunikationsteori;

    Sammanfattning : The ongoing wireless communication evolution offers improvements for industrial applications where traditional wireline solutions causes prohibitive problems in terms of cost and feasibility. Many of these new wireless applications are packet oriented and time-critical. LÄS MER