Sökning: "short Range Communication"

Visar resultat 21 - 25 av 107 uppsatser innehållade orden short Range Communication.

  1. 21. Link blockage modelling for channel state prediction in high-frequencies using deep learning

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

    Författare :Shreya Krishnama Chari; [2020]
    Nyckelord :Radio link blockage; mmwave communications; sub-6GHz communications; 5G; Long short-term memory network; Deep neural network; Blockering av radiolänkar; mmwave-kommunikation; sub-6GHzkommunikation; 5G; Long short-term memory nätverk; Deep neural nätverk;

    Sammanfattning : With the accessibility to generous spectrum and development of high gain antenna arrays, wireless communication in higher frequency bands providing multi-gigabit short range wireless access has become a reality. The directional antennas have proven to reduce losses due to interfering signals but are still exposed to blockage events. LÄS MER

  3. 22. PLL for 5G mmWave

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

    Författare :Daniel Bakic; Jinzhuo Wu; [2020]
    Nyckelord :PLL; 5G-NR; RFIC; beamforming; 22nm FDSOI; charge pump; vco; loop filter; frequency divider; phase detector; phase noise; jitter; Technology and Engineering;

    Sammanfattning : This paper presents research and implementation of a high frequency Integer-N phase-locked loop for digital beamforming in mobile devices. Multiple topologies investigated whereof two were implemented. The transient phase noise of the PLL is -104dB/-95dB @1MHz. The output frequency range is from 8G-10G. LÄS MER

  4. 23. Link performance measurement and improvement using Bluetooth mesh network

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

    Författare :Durgaprasad Srinivasa; Manjunath Harshavardhan Manjunath Harshavardhan; [2020]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Bluetooth is a short-range technology, it helps with wireless communication between many electronic devices. Bluetooth low energy (BLE) is the advanced version of Bluetooth which uses low energy compared to the standard Bluetooth. Bluetooth mesh technology play a crucial role in the Internet of things (IoT). LÄS MER

  5. 24. Security Threats and Countermeasures for Connected Vehicles

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

    Författare :Xuwei Gong; [2019]
    Nyckelord :Connected vehicle; Use case; Threat analysis; Countermeasures; anslutna fordon; användningsfall; hotanalys; motåtgärd;

    Sammanfattning : With the rapid development of connected vehicles, automotive security has become one of the most important topics. To study how to protect the security of vehicle communication, we analyze potential threats for connected vehicles and discuss countermeasures to mitigate these threats. LÄS MER

  7. 25. Spatially Coupled Codes in Turbo Equalization

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

    Författare :Mgeni Makambi Mashauri; [2019]
    Nyckelord :Turbo equalization; spatial coupling; waterfall versus error floor; codes on graphs; iterative receivers; LDPC codes in turbo equalization; Technology and Engineering;

    Sammanfattning : In this thesis we investigate the application of spatial coupling in turbo equalization. We show that with spatial coupling we can have a fresh perspective on the trade-off between performance in the waterfall and error floor region often encountered in the choice of codes for turbo equalization. LÄS MER