Essays about: "Mobile communication satellite system"

Showing result 1 - 5 of 14 essays containing the words Mobile communication satellite system.

  1. 1. Time synchronization error detection in a radio access network

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Moulika Madana; [2023]
    Keywords : GNSS - Global Navigation Satellite System; OAS - Over-the air-synchronization; PRTC - primary reference time clock; PTP - precision time protocol; Gauss Jordan elimination; GNN- Graph Neural Network; GNSS -Globalt navigationssatellitsystem; OAS - Över-the-air tidssynkronisering; PRTC - Primär referenstidklocka; PTP - Precisionstidprotokoll; Gauss Jordan eliminering; GNN- Graf neurala nätverk;

    Abstract : Time synchronization is a process of ensuring all the time difference between the clocks of network components(like base stations, boundary clocks, grandmasters, etc.) in the mobile network is zero or negligible. It is one of the important factors responsible for ensuring effective communication between two user-equipments in a mobile network. READ MORE

  3. 2. Development of GNSS Type Processing for the Characterization of the Mobile Propagation Channel

    University essay from KTH/Fastigheter och byggande

    Author : Adrien Bardou; [2021]
    Keywords : LMS Channel; Multi-paths; GNSS; SCHUN; Simulation; LMS-kanal; flerv¨agar; GNSS; SCHUN; Simulering;

    Abstract : Mobile communication systems are undergoing significant development on increasingly wide frequency bands (5G in particular). To support this development, a detailed characterization of the propagation of electromagnetic waves in L, S and C band between a station (satellite, airborne or ground) and a mobile platform is necessary to analyze and model the phenomena that have a decisive impact on the performance, availability and operability of systems. READ MORE

  4. 3. Polyphase Symbol Timing Synchronization on a Software-Defined Radio

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Georg Lundberg; [2021]
    Keywords : SDR; Software-Defined Radio; Polyphase; Symbol Timing Synchronization; Satellite Communication; MATLAB; Simulink; Xilinx; English;

    Abstract : Software-defined radio is a continuously developing technology applied in fields of mobile communications and among others. It is a radio communication system where software is used to implement parts of its functionality in an embedded system or computer. READ MORE

  5. 4. Vehicular Positioning Using 5G and Sensor Fusion

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Seyed Samie Mostafavi; [2019]
    Keywords : Positioning; 5G; Sensor Fusion; Beamforming; IMU; Kalman Filter;

    Abstract : Recent advances in the telecommunications industry and the resulting applicationssuch as autonomous vehicles, vehicle surveillance and traffic safetyhas increased the demand for accurate and robust vehicle positioning systems.Existing Global Navigation Satellite System (GNSS) based positioning techniquesface significant performance loss in the tunnels and urban canyons. READ MORE

  6. 5. Evaluation and testing of technologies for indoor positioning

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Fredrik Helander; Hampus Engström; [2015]
    Keywords : Technology and Engineering;

    Abstract : Indoor positioning based on magnetic field fingerprints Indoor positioning, one of today’s technical challenges. How can it be solved when there is no standard solution? One approach is by discretizing earth’s magnetic field and use it as fingerprints. Today there is a standard technology called global positioning system, GPS. READ MORE