Sökning: "packet losses"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden packet losses.

  1. 1. Improving TCP Performance in Wireless Multi-hop Networks : Design of Efficient Forwarding and Packet Processing Techniques

    Författare :Jonas Karlsson; Andreas Kassler; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TCP; transport protocols; packet aggregation; multi path routing; wireless mesh networks; Computer Science; Datavetenskap;

    Sammanfattning : Due to the high availability of cheap hardware, wireless multi-hop networks and in particular Wireless Mesh Networks (WMNs) are becoming popular in more and more contexts. For instance, IEEE 802.11 based WMNs have already started to be deployed as means to provide Internet access to rural areas in the developing world. LÄS MER

  3. 2. Architectures and Performance Analysis of Wireless Control Systems

    Författare :Burak Demirel; Mikael Professor; Tamer Basar; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Networked control systems; wireless networks; optimal control; time-delays; packet losses; linear-quadratic control; supervisory control; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Modern industrial control systems use a multitude of spatially distributed sensors and actuators to continuously monitor and control physical processes. Information exchange among control system components is traditionally done through physical wires. LÄS MER

  4. 3. Traffic Control for VBR Video in Packet Switched Networks

    Författare :György Dán; KTH; []
    Nyckelord :Traffic control; VBR video; shaping; FEC; QoS;

    Sammanfattning : The best effort service offered by the Internet is notsatisfactory for the transmission of loss and delay sensitivedata, such as real-time voice and video. In order to provideservice guarantees at reasonably high load levels, additionalcontrol functions haveto be employed in the network. LÄS MER

  5. 4. Compensating for Unreliable Communication Links in Networked Control Systems

    Författare :Erik Henriksson; Karl Henrik Johansson; Henrik Sandberg; Bruno Sinopoli; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; networked control; packet loss compensation; unreliable communication; control over wirless networks; Automatic control; Reglerteknik;

    Sammanfattning : Control systems utilizing wireless sensor and actuator networks can be severely affectedby the properties of the communication links. Radio fading and interferencemay cause communication losses and outages in situations when the radio environmentis noisy and low transmission power is desirable. LÄS MER

  7. 5. Fat-IBC : A New Paradigm for Intra-body Communication

    Författare :Noor Badariah Asan; Robin Augustine; Thiemo Voigt; Ali Khaleghi; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fat-Intrabody Communication; Fat Tissue; Microwave; Propagation; Data Packet Reception; Ex-vivo; Phantom; Communication; Reliability; Implants; Engineering Science with specialization in Microwave Technology; Teknisk fysik med inriktning mot mikrovågsteknik;

    Sammanfattning : In the last two decades, a significant development in the field of medical technology occurred worldwide. This development is characterized by the materialization of various body implants and worn devices, that is devices attached to the body. LÄS MER