Essays about: "Fading."

Showing result 11 - 15 of 206 essays containing the word Fading..

1. 11. Sporadic-E layers in the polar cap ionosphere : A review on Es occurrence, dynamics and formation theory

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

   Author : Anton Thorell; [2023]
   Keywords : Sporadic-E layers; plasma physics; space physics; arctic geophysics; radar technology; UNIS; Svalbard; EISCAT.; Sporadiska E-skikt; plasmafysik; rymdfysik; arktisk geofysik; radarteknik; UNIS; Svalbard; EISCAT.;

   Abstract : Sporadic-E layers (Es) are layers of metallic ions that appear in the lower E-region of the ionosphere and can last from under one hour to several hours. Es are found at all latitudes, but polar cap Es, and specifically over Svalbard at a latitude of around 78◦ , are the focus of this study. READ MORE

3. 12. Analysis and Measurement of Key Performance Indicators for MIMO Antennas

   University essay from Umeå universitet/Institutionen för fysik

   Author : Ossian Kynman; [2023]
   Keywords : MIMO; Diversity Gain; Capacity; Correlation; Fading;

   Abstract : Multiple-in multiple-out (MIMO) is a wireless communication technique where antenna arrays, at the receiver and transmitter, utilize signal multipath propagation to increase data throughput capacity. The unique benefits MIMO provides have over the last 20 years led to the steady increase in usage in both Wi-Fi and mobile networks. READ MORE

4. 13. Performance Analysis of STTC-Based MIMO Under Cognitive RadioScenarios

   University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

   Author : Sanjana Kankantee; Sai Praneeth Reddy Ganta; [2023]
   Keywords : Space-time trellis coding; MIMO; Cognitive radio; Performance; Bit error rate; Diversity; AWGN; Rayleigh fading; Detection; Spectrum.;

   Abstract : This thesis presents a comprehensive investigation into improving wireless transmission rates and reliability through the implementation of Space Time Trellis Codes(STTC). The study focuses on enhancing the coding gain, diversity gain, and flexible transmission capabilities, which are crucial for Error-Correcting Codes (ECC)in wireless communications. READ MORE

5. 14. Secrecy Capacity of Cooperative Transmission with Opportunistic Relaying Scheme

   University essay from

   Author : Dhathri Pravallika Pasumarthi; [2022]
   Keywords : Cooperative Transmission; Opportunistic Relaying; Decode-and-Forward; Outage Probability; Secrecy Capacity; Fading.;

   Abstract : The usage of wireless communication has increased over the past few years. Most wired communications are replaced by wireless communication for ease of use. Wireless communication transfers confidential information like personal information and credentials between two entities. READ MORE

6. 15. Are recessions still healthy? Empirical evidence regarding the relationship between mortality and macroeconomic conditions

   University essay from Lunds universitet/Nationalekonomiska institutionen

   Author : Felix Persson; [2022]
   Keywords : Health; Mortality; Macroeconomic conditions; Recessions; Business cycles; Business and Economics;

   Abstract : The relationship between macroeconomic conditions and mortality has previously been established to be procyclical, which means that mortality has decreased during recessions and vice versa. This has been shown for various settings. READ MORE