Search for dissertations about: "Millimeter-wave"

Showing result 21 - 25 of 127 swedish dissertations containing the word Millimeter-wave.

2. 21. Location-aided Beam Alignment and Handover in Millimeter-wave Networks

   Author : Sara Khosravi; Marina Petrova; Jens Zander; Sofie Pollin; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Millimeter wave networks; beam alignment; Handover; Reinforcement learning; Millimetervågnätverk; strålinriktning; överlämning; förstärkningsinlärning;

   Abstract : Ever-increasing data rate demands in mobile networks and the spectrum scarcity at the microwave bands have resulted in the exploration of millimeter-wave (mmWave) frequencies for the next generation of wireless networks. While mmWave frequencies offer large bandwidth, communication at these frequencies is not straightforward due to the challenging propagation characteristics. READ MORE

4. 22. Fully metallic antennas for millimeter wave applications

   Author : Qingbi Liao; Oscar Quevedo-Teruel; Sean Victor Hum; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

   Abstract : Modern societal demands for a high data throughput, short time latency and low energy consumption are difficult to satisfy using current wirelesscommunication techniques. The carrier frequency of previous wireless communication, such as broadcast, the global system for mobile communication, and wireless local area networks, are in the sub-3 GHz spectrum. READ MORE

5. 23. Throughput and Latency of Millimeter-Wave Networks : Performance Analyses and Design Principles

   Author : Guang Yang; Ming Xiao; Mikael Skoglund; Mehdi Bennis; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

   Abstract : Nowadays, the ever-increasing demands on higher data rates and better serviceperformance have posed extremely huge challenges to the existing wireless communicationswithin sub-6 GHz bands, mainly due to the spectrum scarcity in lowerfrequency bands. In recent years, the millimeter-wave (mm-wave) technology, as apromising candidate to meet the aforementioned demands, have attracted extensiveresearch attention, and has been regarded as one of the key enablers for theforthcoming the 5th generation (5G) mobile communications. READ MORE

6. 24. Heterostructure Diodes for Millimeter Wave Power Generation

   Author : Hans Grönqvist; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Single barrier varactor diode; AlSb barrier; InAs substrate; high frequencies; Resonant Tunneling Diode;

   Abstract : This thesis deals with two types of heterostructure diodes namely the Resonant Tunneling Diode (RTD) and the Single barrier varactor diode (SBV). The RTD is a device for high frequency generation either as a negative reistance oscillators or as a multiplier. Different means to reach high frequencies are outlined. READ MORE

7. 25. Performance Aspects in Millimeter-Wave Wireless  Networks

   Author : Cristian Tatino; Di Yuan; Nikolaos Pappas; Ilaria Malanchini; Ewe Lutz; Marian Codreanu; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : The ever-growing data rate and comunications demand pose more challenges for the upcoming generations of mobile communications, i.e., fifth generation (5G) and beyond. To deal with these challenges, several solutions can be deployed, e. READ MORE