Sökning: "Channel sounding"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden Channel sounding.

  1. 1. Simulation and Testing of a MU-MIMO Beamforming System

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

    Författare :Nazyar Mehdishishavan; Zonghan Wang; [2023]
    Nyckelord :Multi-User Multiple-Input Multiple-Output MU-MIMO ; Beamforming; Sounding Reference Signal SRS ; Reciprocity-based; Butler matrix; Advanced Antenna System AAS ; Technology and Engineering;

    Sammanfattning : Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology has become increasingly important in the field of wireless communication due to its ability to highly increase the capacity and efficiency of wireless networks [1]. Beamforming, as a technique used in MU-MIMO systems, improves network performance by improving signal quality and reducing interference. LÄS MER

  3. 2. Lean Beam Management for New Radio

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

    Författare :Nawanit Kumar; [2020]
    Nyckelord :5G; NR; MIMO; Beam management; CSI-RS; Technology and Engineering;

    Sammanfattning : The use of millimetre-wave frequencies in Fifth generation New Radio has lead to high path loss due to radio propagation environment. Simultaneously, high data rates is a must for current products due to high market demand. This requirement accounts for efficient tracking of the best beam for the user equipment to stay connected to it. LÄS MER

  4. 3. User Equipment Characterization using Machine Learning

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

    Författare :Vanessa Fakhoury; Xin Zhou; [2019]
    Nyckelord :machine learning; characterization; massive MIMO; beamforming; neural networks; support vector machine; logistic regression; multiclass neural networks; Technology and Engineering;

    Sammanfattning : With the ever increasing demand for higher data rates and reliability, efficient management of cellular networks remains a challenge. Among other technologies, fifth generation systems are expected to tackle this challenge using large electronically controllable antenna arrays operating in the time division duplex mode. LÄS MER

  5. 4. Investigate Redundancy In Sounding Reference Signal Based Channel Estimates

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

    Författare :Nishanth Bhavani Sankar; Akshay Thakaramkunnath Ajayakumar; [2019]
    Nyckelord :Sounding Reference Signals; Multiple Input Multiple Output; 5th Generation; Time Division Duplexing; Lossless compression; Lossy Compression; Technology and Engineering;

    Sammanfattning : 5G supports enormous increase in data rate. Massive antenna beamforming is expected to play a key role in increasing capacity in case of multi-user MIMO and coverage in case of single-user MIMO. LÄS MER

  7. 5. 5G@15 GHz Testbed Development and Evaluation

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

    Författare :Imran Habib; [2018]
    Nyckelord :5G; modulation; Millimeter waves; SNR; Interference; Testbed; Xilinx; FPGA; FMCOMMS5; Transceiver; Antenna; Channel Sounding; SISO; MIMO;

    Sammanfattning : Due to the advancement in technology and the increase in the amount of data beingtransferred through wireless channels, many developments in the techniques and speedof data transfer have been observed in the past few decades. The current trend incellular technology is transforming from 4G to 5G. LÄS MER