Search for dissertations about: "Wireless Channel Modeling"

Showing result 1 - 5 of 51 swedish dissertations containing the words Wireless Channel Modeling.

2. 1. Radio Channel Prediction Based on Parametric Modeling

   Author : Ming Chen; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless communications; channel prediction; GLRT; CRLB; NLLS; polynomial phase signal; Kalman filter; NILS.; sinusoidal modeling; channel modeling; MIMO;

   Abstract : Long range channel prediction is a crucial technology for future wireless communications. The prediction of Rayleigh fading channels is studied in the frame of parametric modeling in this thesis.Suggested by the Jakes model for Rayleigh fading channels,deterministic sinusoidal models were adopted for long rangechannel prediction in early works. READ MORE

4. 2. Millimeter-Wave Communications for Indoor Dense Spaces : Channel Modeling and Network Deployment

   Author : Ozan Alp Topal; Cicek Cavdar; Emil Björnson; Ahmed Alkhateeb; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Millimeter wave communication; ray-tracing; channel modeling; access point deployment; convex-concave programming; reconfigurable intelligent surfaces.; Millimetervågsteknik; ray-tracing; kanalmodellering; accesspunktsutbyggnad; konvex-konkav programmering; omkonfigurerbara intelligenta yto; Informations- och kommunikationsteknik; Information and Communication Technology; Telecommunication; Telekommunikation;

   Abstract : In the ever-evolving landscape of wireless communication, the deployment of millimeter-wave (mmWave) technology has emerged as a game-changer for indoor environments. As the demand for high-speed, low-latency connectivity continues to surge, especially in densely populated areas, mmWave access point deployment has gained prominence due to its ability to deliver unprecedented data rates thanks to the available wide bandwidths. READ MORE

5. 3. Characterization of Single- and Multi-antenna Wireless Channels

   Author : Shurjeel Wyne; Institutionen för elektro- och informationsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MIMO; channel measurements; channel modeling; Wireless propagation; sensor networks;

   Abstract : The wireless propagation channel significantly influences the received signal, so that it needs to be modeled effectively. Extensive measurements and analysis are required for investigating the validity of theoretical models and postulating new models based on measurements. Such measurements, analysis, and modeling are the topic of this thesis. READ MORE

6. 4. 60 GHz Wireless Propagation Channels: Characterization, Modeling and Evaluation

   Author : Carl Gustafson; Institutionen för elektro- och informationsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 60 GHz; mm-wave; IEEE 802.11ad; IEEE802.15.3c; Channel measurements; Channel modeling; propagation; MIMO; Beamforming; Spatial Multiplexing;

   Abstract : To be able to connect wirelessly to the internet is nowadays a part of everyday life and the number of wireless devices accessing wireless networks worldwide are increasing rapidly. However, with the increasing number of wireless devices and applications and the amount available bandwidth, spectrum shortage is an issue. READ MORE

7. 5. Measurement-Based Modeling of Wireless Propagation Channels - MIMO and UWB

   Author : Johan Kåredal; Institutionen för elektro- och informationsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; personal area networks; MIMO; channel modeling; Propagation; channel measurements; vehicle-to-vehicle communicationa; ultra-wideband;

   Abstract : Future wireless systems envision higher speeds and more reliable services but at the same time face challenges in terms of bandwidth being a limited resource. Two promising techniques that can provide an increased throughput without requiring additional bandwidth allocation are multiple-input multiple-output (MIMO) systems and ultra-wideband (UWB) systems. READ MORE