Essays about: "Mobile Communications"

Showing result 21 - 25 of 177 essays containing the words Mobile Communications.

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

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

   Author : Shreya Krishnama Chari; [2020]
   Keywords : 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;

   Abstract : 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. READ MORE

3. 22. PLL for 5G mmWave

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

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

   Abstract : 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. READ MORE

4. 23. Investigation on Positioning Techniques for Indoor Office Scenario

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

   Author : Yan Shu; Yujie Zhang; [2020]
   Keywords : Technology and Engineering;

   Abstract : This master thesis aims to investigate downlink positioning techniques and improve fifth-generation (5G) cellular positioning performance in the indoor office scenario. In the thesis work, we target in the indoor office scenario because it is a typical deployment scenario standardized in 3GPP release 16. READ MORE

5. 24. The use of instant messaging applications among swedish students and their security awareness

   University essay from Högskolan i Skövde/Institutionen för informationsteknologi

   Author : Henok Tesfazion; [2020]
   Keywords : encryption; privacy; security; instant messaging; IM;

   Abstract : Instant Messaging Mobile (IM) applications are now ubiquitous and predominant in most person-to-person communications, especially intimate and sensitive conversations. This growing popularity of instant messaging is linked directly to the characteristics of speed, immediate and convenience that an IM holds which is a strong appeal for anyone that wants to communicate and collaborate in real-time with others. READ MORE

6. 25. Smart Case for Remote Radio Kit

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Emil Östlund; [2019]
   Keywords : CAD; LTE; IoT; Signal processing; Data communication; Data transmission; 3D printing; Soldering; Electrical circuit; schematics; simulations; Arduino; Software; Hardware;

   Abstract : The thesis aims to develop a prototype for a Smart Case for Remote Radio Kits at the department of Demo & Event at Ericsson in Kista.The smart case consists of a mechanical structure (the case itself with ) and an electronic system that includes a temperature sensor, a LCD display showing the temperature, a GPS (global positioning system) module for positioning the case, a GSM (Global System for Mobile Communications) module and a microcontroller Arduino UNO. READ MORE