Search for dissertations about: "Telecommunication"

Showing result 11 - 15 of 285 swedish dissertations containing the word Telecommunication.

2. 11. Reconfigurable Optical Interconnection Networks for High-Performance Embedded

   Author : Sacki Agelis; Håkan Forsberg; Högskolan i Halmstad; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; MOEMS; Micro-optical-electrical mechanical systems; Reconfigurable interconnection networks; Data communication; Telecommunication; Radar signal processing; Asymmetric application; Symmetric application; STAP; SAR; Embedded systems; VCSEL; Parallel processing system; Optical communication;

   Abstract : In embedded computer and communication system the capacity demand for interconnection networks is increasing continuously in order to achieve high-performance systems. Recent breakthroughs show that by using reconfigurability inside a single chip substantial performance gains can be added. READ MORE

4. 12. Link Reliability in Cooperative Relaying Using Network Coding

   Author : Tafzeel ur Rehman Ahsin; Slimane Ben Slimane; Ove Edfors; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative Communications; Network Coding; Multiple Access Relay Channel; Telecommunication; Telekommunikation; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Abstract : Demand for high data rates is increasing rapidly for future wireless systems.This trend is due to the increase in the number of mobile subscribers that need bandwidth hungry multimedia applications anywhere, anytime. Fourth generation cellular systems like IMT-advanced are being developed to meet these requirements. READ MORE

5. 13. Coding for the Wiretap Channel

   Author : Mattias Andersson; Mikael Skoglund; Michael Lentmaier; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

   Abstract : We consider code design for Wyner’s wiretap channel. Optimal coding schemes for this channel require an overall code that is capacity achieving for the main channel, partitioned into smaller subcodes, all of which are capacity achieving for the wiretapper’s channel. READ MORE

6. 14. On error-robust source coding with image coding applications

   Author : Tomas Andersson; Mikael Skoglund; Astrid Lundmark; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; source coding; channel coding; joint source-channel coding; multiple description coding; image coding; vector quantization; channel optimized vector quantization; Telecommunication; Telekommunikation;

   Abstract : This thesis treats the problem of source coding in situations where the encoded data is subject to errors. The typical scenario is a communication system, where source data such as speech or images should be transmitted from one point to another. A problem is that most communication systems introduce some sort of error in the transmission. READ MORE

7. 15. Spectral Efficiency and Fairness Maximization in Full-Duplex Cellular Networks

   Author : Jose Mairton B. da Silva Jr.; Carlo Fischione; Gabor Fodor; Ioannis Krikidis; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; full-duplex; power control; user assignment; cellular networks; fairness; spectral efficiency; Telecommunication; Telekommunikation;

   Abstract : Future cellular networks, the so-called 5G, are expected to provide explosive data volumes and data rates. To meet such a demand, the research communities are investigating new wireless transmission technologies. One of the most promising candidates is in-band full-duplex communications. READ MORE