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Hittade 4 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Positioning in Non-Terrestrial Networks

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Soha Emara; [2021]
    Nyckelord :positioning; 5G; satellite; NTN; Technology and Engineering;

    Sammanfattning : In 5G communications, Non-terrestrial Network (NTN) is envisioned to complement Terrestrial Network (TN) to increase network availability, scalability and continuity. Positioning of User Equipment (UE) is critical for the operation of NTN. Currently, NTN uses Global Navigation Satellite System (GNSS) for positioning. LÄS MER

  3. 2. Service Aware Traffic Distribution in Heterogeneous A2G Networks

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :David Tomic; [2019]
    Nyckelord :In-flight broadband connectivity; direct air-to-ground communication; satellite air-to-ground communication; forwarding algorithm; forwarding scheme; packet loss; delay; QoS threshold; web cache; web cache hit rate; Bredbandskommunikation i flygning; direkt marknadskommunikation; satellit-till-jord-kommunikation; vidarebefordringsalgoritm; vidarebefordringsschema; paketförlust; fördröjning; QoS-tröskel; webbcache; webcache-träffhastighet;

    Sammanfattning : Airplanes have different ways to connect to the ground, including satellite air-to-ground communication (SA2GC) and direct air-to-ground communication (DA2GC). Each connection/link offers a different varying amount of transmission capacity over flight time. LÄS MER

  4. 3. Aircraft to Aircraft Connectivity Analysis

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Vasileios Megas; [2018]
    Nyckelord :;

    Sammanfattning : It is very common to feel the need to be connected, especially in cases where we are idle, such as in airplanes. Aircraft connectivity has already been implemented by using direct air-to-ground communication and satellite communication. LÄS MER

  5. 4. Aircraft antenna array for seamless direct air-to-ground communication system

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

    Författare :Anton Gusarov; [2016]
    Nyckelord :;

    Sammanfattning : Today, data communication provided for passengers on board of commercial airliners is significantly limited and mostly relies on satellite systems. One of the solutions for this problem is a direct air-to-ground communication systems (DA2GC) able to provide much larger data throughput in a seamless manner. LÄS MER