Sökning: "mmWave"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet mmWave.

  1. 1. CMOS Data Converters for Closed-Loop mmWave Transmitters

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Victor Åberg; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CMOS; SAR ADC; IQ-modulator; Data converter; mmWave; RF-DAC;

    Sammanfattning : With the increased amount of data consumed in mobile communication systems, new solutions for the infrastructure are needed. Massive multiple input multiple output (MIMO) is seen as a key enabler for providing this increased capacity. With the use of a large number of transmitters, the cost of each transmitter must be low. LÄS MER

  2. 2. SDN-Enabled Resiliency in Computer Networks

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Jonathan Vestin; Andreas Kassler; Yan Zhang; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; networking; sdn; openflow; resiliency; icn; mmwave; 5g; wlan; Computer Science; Datavetenskap;

    Sammanfattning : In computer networking, failures, such as breaking equipment, cable cuts, power failures and human errors continuously cause communication interruptions. Such failures may result in dissatisfied customers, loss of product reputation, violation of SLAs and even critical failures in industrial systems. LÄS MER

  3. 3. 5G Backhauling with Software-defined Wireless Mesh Networks

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Ricardo Santos; Andreas Kassler; Rui L. Agar; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SDN; wireless backhaul; heterogeneous networks; mmWave; 5G; resiliency; Computer Science; Datavetenskap;

    Sammanfattning : Current technological advances have caused an exponential growth of the number of mobile Internet-connected devices, along with their respective traffic demands. To cope with this increase of traffic demands, fifth generation (5G) network architectures will need to provide multi-gigabit capacity at the access base stations (BSs), through the deployment of ultra-dense small cells (SCs) operating with millimeter-wave (mmWave) frequencies, e. LÄS MER

  4. 4. Towards Resilient and Reconfigurable Software-defined Wireless Backhaul Networks

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Ricardo Santos; Andreas Kassler; José Soler; [2020]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 5G; heterogeneous networks; mmWave; resiliency; SDN; wireless backhaul; Computer Science; Datavetenskap;

    Sammanfattning : The increase of mobile devices and services over the last decade has led to unprecedented mobile traffic growth. To cope with the increasing demands, fifth generation (5G) network architectures have been designed to provide the required capacity using a large number of small cells (SCs). LÄS MER

  5. 5. Mobile Antenna Systems for 4G and 5G Applications with User Body Interaction

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Kun Zhao; Sailing He; Cyril Luxey; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Antenna; MIMO; mmWave; Mobile communication; SAR; Power density; User body effect; Channel modeling; Multiplex efficiency; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : In the thesis, the user body effect on antennas in a mobile terminal is discussed. In order to overcome the degradation of Multiple-Input Multiple-Output (MIMO) performance due to the user body effect, a quad-elements MIMO antenna array which can mitigate the body effect through an adaptive antenna switching method is introduced for 4G mobile terminals. LÄS MER