Search for dissertations about: "base station antenna of mobile"

Showing result 1 - 5 of 27 swedish dissertations containing the words base station antenna of mobile.

2. 1. Analysis and Design of Base Station Antennas for Mobile Communications

   Author : Björn Lindmark; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polarization diversity; dual polarization; adaptive antennas; moment method; genetic algorithm; antenna arrays; radio propagation; channel sounding; aperture coupled patch;

   Abstract : The thesis deals with base station antennas and the environment they work in. Polarization diversity, dual band operation, and adaptive antenna systems are discussed with emphasis on how antennas for these applications should be designed. We compare the polarization diversity performance of different types of dual polarized antenna elements. READ MORE

4. 2. Mobile cellular communications with base station antenna arrays

   Author : Per Zetterberg; KTH; []
   Keywords : ;

   Abstract : This thesis deals with the problem of increasing thespectrum efflciency of cellular systems by the use of antennaarray base stations. The focus of the thesis is on downlinktransmission in frequency division duplex systems. i.e. READ MORE

5. 3. Performance Engineering of Mobile Broadband : Capacity Analysis, Cellular Network Optimization, and Design of In-Building Solutions

   Author : Lei Chen; Di Yuan; Linköpings universitet; []
   Keywords : ;

   Abstract : The rapid evolution of mobile communication technologies is making mobile broadband a reality. With over 6 billion cellular connections and the booming of mobile data, mobile broadband leads the technology and service innovation within the domain of information and communication technologies. READ MORE

6. 4. Towards Context Information-based High-Performing Connectivity in Internet of Vehicle Communications

   Author : Hao Guo; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; temporal correlation; relay; Internet-of-vehicles IoV ; reconfigurable intelligent surface; throughput; wireless backhaul; outage probability; channel state information CSI ; 5G B5G; spatial correlation; rate adaptation; mobile relay; 6G; vehicle-to-everything V2X ; Marcum Q-function; integrated access and backhaul IAB ; predictor antenna; blockage; millimeter wave;

   Abstract : Internet-of-vehicles (IoV) is one of the most important use cases in the fifth generation (5G) of wireless networks and beyond. Here, IoV communications refer to two types of scenarios: serving the in-vehicle users with moving relays (MRs); and supporting vehicle-to-everything (V2X) communications for, e.g., connected vehicle functionalities. READ MORE

7. 5. Analysis of Dipole and Patch Antennas in Cylindrical Structures

   Author : Peter Slättman; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fourier transform; cross-section; patch; slot; arbitrary; EFIE; trough guide; cylindrical; dipole; moment method; antenna; aperture coupled;

   Abstract : This thesis deals with the analysis of dipoles, patches, and aperture coupled patches located in an infinitely long cylindrical structure with arbitrary cross-section. The analysis exploits the two-dimensional nature of the structure by expanding all fields and currents in spatial harmonics along the cylinder axis, and solving the subsequent spectral two-dimensional problems by the moment method. READ MORE