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Visar resultat 1 - 5 av 7 uppsatser som matchar ovanstående sökkriterier.

  1. 1. UE Performance in a 5G Multi-connectivity UDN City Scenario

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :José Perdomo; [2019]
    Nyckelord :;

    Sammanfattning : Multi-connectivity and network densification are two solutions intended to enhance user throughput and reliability. These solutions are critical since 5G NR uses a wide range of frequency bands, which exhibit different varying radio coverage characteristics. LÄS MER

  3. 2. Energy-Efficient Multi-Connectivity for Ultra-Dense Networks

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Valentin Poirot; [2017]
    Nyckelord :Energy efficiency; multi connectivity; ultra dense network; 5G; secondary cell association; reliability;

    Sammanfattning : In 5G systems, two radio air interfaces, evolved LTE and New Radio (NR), will coexist. By using millimeter waves, NR will provide high throughputs, but the higher frequencies will also lead to increased losses and a worse coverage. LÄS MER

  4. 3. Fabrication of a light-weight SOFC using ceramic fibre paper as substrate

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Philip Löfkvist; [2015]
    Nyckelord :inorganic chemistry; solid oxide fuel cell; unmanned aerial vehicle; high temperature heat treatment; yttria stabilized zirconia; ceramic fibre paper; catator; nickel oxide; impregnation; paste manufacturing; ultra-sonication; ball-milling; optical microscopy; materials chemistry; scanning electron microscopy; materialkemi; Technology and Engineering;

    Sammanfattning : A novel method for the fabrication of a light-weight solid oxide fuel cell (SOFC) has been evaluated at Catator. This was conducted in order to lower the weight and thus cost of an unmanned aerial vehicle. The main aim for this thesis was to achieve a thin, dense and crack-free electrolyte using a ceramic fibre paper as substrate. LÄS MER

  5. 4. Coordinated Multipoint Schemes with Suitable Cooperation Thresholds for Ultra Dense Networks

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Jue Zhang; [2015]
    Nyckelord :;

    Sammanfattning : Both data traffic and number of subscriptions have enormously increased inmobile network in recent years. Moreover, there will be an even faster growthin the future. LÄS MER

  7. 5. Integrated Backhaul Management for Ultra-Dense Network Deployment

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Sachin Sharma; [2014]
    Nyckelord :Heterogeneous networks; mobile backhaul; network dimensioning; ultra-dense networks; moving networks; dynamic network resource allocation; fronthaul backhaul architectures;

    Sammanfattning : Mobile data traffic is expected to increase substantially in the coming years, with data rates 1000 times higher by 2020, having media and content as the main drivers together with a plethora of new end-user services that will challenge existing networks. Concepts and visions associated with the ICT evolution like the network society, 50 billion connected devices, Industrial Internet, Tactile Internet, etc. LÄS MER