Sökning: "channel coding"

Visar resultat 1 - 5 av 96 uppsatser innehållade orden channel coding.

1. 1. “Det finns en strejkkultur hos SAS” : En kvalitativ innehållsanalys av SAS kriskommunikation under pilotstrejkerna 2019 och 2022

   Kandidat-uppsats, Jönköping University/HLK, Medie- och kommunikationsvetenskap

   Författare :Filippa Palmén; Malin Jansson; [2023]
   Nyckelord :Crisis communication; Scandinavian airlines; Situational Crisis Communication Theory; Scandinavia pilots’ unions; Kriskommunikation; Scandinavian airlines; Situational Crisis Communication Theory; Skandinaviska pilotföreningarna;

   Sammanfattning : Denna studie är ämnad att undersöka hur SAS utformat deras kriskommunikation under pilotstrejkerna 2019 och 2022. De både strejkerna bröt ut som en konsekvens av brutna förhandlingar mellan SAS och skandinaviska pilotföreningarna. LÄS MER

3. 2. Performance Analysis of STTC-Based MIMO Under Cognitive RadioScenarios

   Master-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

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

   Sammanfattning : 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. LÄS MER

4. 3. Adaptive Modulation Coding Scheme in Amplify and Forward Relay Networks

   Master-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

   Författare :Nirnay Reddy Nallavelli; Sushma Swaraj Chilupuri; [2022]
   Nyckelord :Adaptive Modulation; Modulation and Coding Schemes; Amplify and Forward; Signal to Noise Ratio; Nakagami-m Distribution.;

   Sammanfattning : Wireless communications have become an essential part of our daily life. Despite the fact that wireless networks are simple to set up and deploy, the channel conditionsin wireless networks are susceptible to fading and attenuation, thereby reducing the transmission efficiency and reliability. LÄS MER

5. 4. Link Adaptation in 5G Networks : Reinforcement Learning Framework based Approach

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Siva Satya Sri Ganesh Seeram; [2022]
   Nyckelord :Link Adaptation; OLLA; AMC; Reinforcement Learning; DDPG; BLER; Länkanpassning; OLLA; AMC; förstärkningsinlärning; DDPG; BLER;

   Sammanfattning : Link Adaptation is a core feature introduced in gNodeB (gNB) for Adaptive Modulation and Coding (AMC) scheme in new generation cellular networks. The main purpose of this is to correct the estimated Signal-to-Interference-plus-Noise ratio (SINR) at gNB and select the appropriate Modulation and Coding Scheme (MCS) so the User Equipment (UE) can decode the data successfully. LÄS MER

7. 5. Polar Codes for Biometric Identification Systems

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Yicheng Bao; [2022]
   Nyckelord :Biometrics; Polar codes; Identification systems; Convolutional neural networks; Autoencoder; Privacy preservation; Biometri; Polära koder; Identifieringssystem; Konvolutionella neurala nätverk; Autoencoder; Sekretessskydd;

   Sammanfattning : Biometrics are widely used in identification systems, such as face, fingerprint, iris, etc. Polar code is the only code that can be strictly proved to achieve channel capacity, and it has been proved to be optimal for channel and source coding. LÄS MER