Search for dissertations about: "CHANNEL ALLOCATION ALGORITHMS"

Showing result 1 - 5 of 33 swedish dissertations containing the words CHANNEL ALLOCATION ALGORITHMS.

2. 1. Multiantenna Cellular Communications : Channel Estimation, Feedback, and Resource Allocation

   Author : Emil Björnson; Björn Ottersten; Mats Bengtsson; Marios Kountouris; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; channel estimation; limited feedback; multicell communications; resource allocation;

   Abstract : The use of multiple antennas at base stations and user devices is a key component in the design of cellular communication systems that can meet the capacity demands of tomorrow. The downlink transmission from base stations to users is particularly limiting, both from a theoretical and a practical perspective, since user devices should be simple and power-efficient, and because many applications primarily create downlink traffic (e. READ MORE

4. 2. Channel Estimation and Prediction for MIMO OFDM Systems : Key Design and Performance Aspects of Kalman-based Algorithms

   Author : Daniel Aronsson; Mikael Sternad; Ove Edfors; Uppsala universitet; []
   Keywords : channel estimation; channel prediction; OFDM; Kalman filtering; Electrical Engineering with specialization in Signal Processing; Elektroteknik med inriktning mot signalbehandling;

   Abstract : Wireless broadband systems based on Orthogonal Frequency Division Multiplexing (OFDM) are being introduced to meet demands for high data transfer rates. In multiple users systems, the available bandwidth has to be shared efficiently by several users. The radio channel quality will fluctuate, or fade, as users move. READ MORE

5. 3. Optimization of Joint Cell, Channel and Power Allocation in Wireless Communication Networks

   Author : Mikael Fallgren; Anders Forsgren; Zhi-Quan (Tom) Luo; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless multicell networks; Optimization; OFDMA; Shannon capacity; Complexity; NP-hard; Relays; Allocation problems; Heuristic algorithms;

   Abstract : In this thesis we formulate joint cell, channel and power allocation problems within wireless communication networks. The objectives are to maximize the user with mini- mum data throughput (Shannon capacity) or to maximize the total system throughput, referred to as the max-min and max-sum problem respectively. READ MORE

6. 4. Coverage Planning and Resource Allocation in Broadband Cellular Access : Optimization Models and Algorithms

   Author : Lei Chen; Di Yuan; Thomas Stidsen; Linköpings universitet; []
   Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : The last two decades have witnessed a booming in the use of cellular communication technologies. Billions of people are now enjoying the benefits of mobile communications. This thesis deals with planning and optimization of broadband cellular access network design and operation. READ MORE

7. 5. Type Based Techniques for Covert Channel Elimination and Register Allocation

   Author : Johan Agat; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; type and effect systems; program analysis; functional languages; confidentiality; register allocation; privacy; computer security; covert timing channels; program transformation; information flow; type systems;

   Abstract : As the title suggests, this thesis consists of two parts that address two rather different topics. The first part investigates secure information flow in sequential programs, with the aim of completely eliminating covert timing channels. The second part presents a technique to describe register allocation for a functional language. READ MORE