Search for dissertations about: "Marcus Karlsson"

Showing result 1 - 5 of 10 swedish dissertations containing the words Marcus Karlsson.

  2. 1. Aspects of Massive MIMO

    Author : Marcus Karlsson; Erik G. Larsson; Emil Björnson; Kimmo Kansanen; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Next generation cellular wireless technology faces tough demands: increasing the throughput and reliability without consuming more resources, be it spectrum or energy. Massive mimo (Multiple-Input Multiple-Output) has proven, both in theory and practice, that it is up for the challenge. READ MORE

  4. 2. Blind Massive MIMO Base Stations : Downlink Transmission and Jamming

    Author : Marcus Karlsson; Erik G. Larsson; Emil Björnson; Ralf Müller; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Massive MIMO (Multiple-Input--Multiple-Output) is a cellular-network technology in which the base station is equipped with a large number of antennas and aims to serve several different users simultaneously, on the same frequency resource through spatial multiplexing. This is made possible by employing efficient beamforming, based on channel estimates acquired from uplink reference signals, where the base station can transmit the signals in such a way that they add up constructively at the users and destructively elsewhere. READ MORE

  5. 3. Double Excitations in Helium Atoms and Lithium Compounds

    Author : Marcus Agåker; Jan-Erik Rubensson; Leif Karlsson; David Ederer; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; Soft X-ray emission; resonant inelastic X-ray scattering; double excitations; lithium halide; helium; Atom- och molekylfysik;

    Abstract : This thesis addresses the investigation of doubly excited 2l´nl states in helium atoms and double core excitations in solid lithium compounds.Measurements on He are made in field free environments and under the influence of electric and magnetic fields, using synchrotron based inelastic photon scattering. READ MORE

  6. 4. Pharmacometric Models in Anesthesia and Analgesia

    Author : Marcus Björnsson; Ulrika Simonsson; Mats Karlsson; Leonid Gibiansky; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacometrics; Anesthesia; Analgesia; Dropout; NONMEM; Pharmacokinetics and Drug Therapy; Farmakokinetik och läkemedelsterapi;

    Abstract : Modeling is a valuable tool in drug development, to support decision making, improving study design, and aid in regulatory approval and labeling. This thesis describes the development of pharmacometric models for drugs used in anesthesia and analgesia. READ MORE

  7. 5. Surface Science Studies of Metal Oxides Formed by Chemical Vapour Deposition on Silicon

    Author : Patrik Karlsson; Anders Sandell; Håkan Rensmo; Marcus Bäumer; Uppsala universitet; []
    Keywords : Physics; chemical vapour deposition; high-k; metal oxides; silicon; dye-solid interface; metal organic; electron spectroscopy; scanning tunnelling microscopy; Fysik;

    Abstract : For an electronic device well-designed interfaces are critical for the performance. Studies of interfaces down to an atomic level are thus highly motivated both from a fundamental and technological point of view. READ MORE