Sökning: "pilot contamination"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden pilot contamination.

  1. 1. Wireless Channel Modeling and Reconstruction in Massive MIMO Systems

    Detta är en avhandling från Univeristy of Otago

    Författare :Aleksei Fedorov; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; channel modeling; 5G; 4G; LTE; MIMO; massive MIMO; localization; channel reconstruction; channel prediction; channel estimation; pilot contamination; phase noise; antenna array; orientation reconstruction; orientation estimation; channel inference; 3D channel modeling; realistic channel modeling; phase shifting; RACH synchronization; massive MIMO emulation; location estimation; system identification;

    Sammanfattning : The past few years have witnessed dramatic growth in the number of wirelessly connected devices, which will continue to increase in the future. Following this trend, the capacity of the wireless networks has been enhanced to provide high-quality service to tens of billions of devices. LÄS MER

  2. 2. Resource Allocation for Max-Min Fairness in Multi-Cell Massive MIMO

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Trinh van Chien; Emil Björnson; Erik G. Larsson; Gabor Fodor; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Massive MIMO (multiple-input multiple-output) is considered as an heir of the multi-user MIMO technology and it has recently gained lots of attention from both academia and industry. By equipping base stations (BSs) with hundreds of antennas, this new technology can provide very large multiplexing gains by serving many users on the same time-frequency resources and thereby bring significant improvements in spectral efficiency (SE) and energy efficiency (EE) over the current wireless networks. LÄS MER

  3. 3. Exploring Alternative Massive MIMO Designs Superimposed Pilots and Mixed-ADCs

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Daniel Verenzuela; Emil Björnson; Luca Sanguinetti; Michalis Matthaiou; Mohamad Assaad; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The development of information and communication technologies (ICT) provides the means for reaching global connectivity that can help humanity progress and prosper. This comes with high demands on data traffic and number of connected devices which are rapidly growing and need to be met by technological development. LÄS MER

  4. 4. Spatial Resource Allocation in Massive MIMO Communications From Cellular to Cell-Free

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Trinh Van Chien; Emil Björnson; Erik G. Larsson; David Gesbert; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Massive MIMO (multiple-input multiple-output) is considered as an heir of the multi-user MIMO technology and it has gained lots of attention from both academia and industry since the last decade. By equipping base stations (BSs) with hundreds of antennas in a compact array or a distributed manner, this new technology can provide very large multiplexing gains by serving many users on the same time-frequency resources and thereby bring significant improvements in spectral efficiency (SE) and energy efficiency (EE) over the current wireless networks. LÄS MER

  5. 5. Analysis of Alternative Massive MIMO Designs Superimposed Pilots and Mixed-ADCs

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Daniel Verenzuela; Emil Björnson; Luca Sanguinetti; Michail Matthaiou; Ove Edfors; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The development of information and communication technologies (ICT) provides the means for reaching global connectivity that can help humanity progress and prosper. This comes with high demands on data traffic and number of connected devices which are rapidly growing and need to be met by technological development. LÄS MER