Sökning: "packets"

Visar resultat 1 - 5 av 145 avhandlingar innehållade ordet packets.

  1. 1. Routing and Congestion Control in Packet Switched Networks

    Författare :Iskra Popova; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Networks; routing; congestion; packets; Computer science; Datavetenskap;

    Sammanfattning : .... LÄS MER

  3. 2. Sensor Networks and Their Radio Environment : On Testbeds, Interference, and Broken Packets

    Författare :Frederik Hermans; Per Gunningberg; Edith Ngai; Andreas Terzis; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sensor networks; Testbed; Mobility; Interference classification; Packet corruption; Computer Science with specialization in Computer Communication; Datavetenskap med inriktning mot datorkommunikation;

    Sammanfattning : Sensor networks consist of small sensing devices that collaboratively fulfill a sensing task, such as monitoring the soil in an agricultural field or measuring vital signs in a marathon runner. To avoid cumbersome and expensive cabling, nodes in a sensor network are powered by batteries and communicate wirelessly. LÄS MER

  4. 3. Attosecond Optical and Electronic Wave Packets

    Författare :Per Johnsson; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optik; acoustics; optics; Electromagnetism; Ionization Dynamics; Electron Wave Packet Interferometry; Electron Wave Packet Control; Pulse Characterization; High-Order Harmonics; Attosecond Pulse Trains; Atom- och molekylärfysik; Atomic and molecular physics; akustik; Elektromagnetism;

    Sammanfattning : When a low-frequency laser pulse is focused to a high intensity in a gas, the electric field of the laser may become comparable to, or even exceed, the electric field between the electrons and the nucleus in the atom. Under such conditions, through a process known as high-order harmonic generation, bursts of extreme ultraviolet radiation may be emitted, with durations in the attosecond domain (1 as = 10^{-18} s), which is the time-scale of electronic processes. LÄS MER

  5. 4. Packet Order Matters! : Improving Application Performance by Deliberately Delaying Packets

    Författare :Hamid Ghasemirahni; Dejan Kostic; Alan L. Davis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Packet Ordering. Spatial Locality; Temporal Locality; Packet Scheduling; Batch Processing; Paketbeställning; Rumslig lokalitet; Temporal lokalitet; Paketplanering; Satsvis bearbetning; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Data-centers increasingly deploy commodity servers with high-speed network interfaces to enable low-latency communication. However, achieving low latency at high data rates crucially depends on how the incoming traffic interacts with the system's caches. When packets that need to be processed in the same way are consecutive, i.e. LÄS MER

  7. 5. Adaptive image compression with wavelet packets and empirical mode decomposition

    Författare :Anna Linderhed; Roland Wilson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : This thesis addresses the problem of using wavelet packets and empirical mode decomposition (EMD) for image compression. The wavelet packet basis selection algorithm is studied through an extensive experimental survey of the generated decomposition trees. LÄS MER