Search for dissertations about: "AWGN channels"

Showing result 1 - 5 of 29 swedish dissertations containing the words AWGN channels.

  2. 1. Analysis of Relay Channels and Improved Iterative Decoders for Turbo-Coded Decode-and-Forward Relay Channels

    Author : Khoa Huynh; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; detect-and-forward; maximum a posteriori; decode-and-forward; Maximum likelihood; iterative decoder.; relay channels; equivalent SNR; upper bound;

    Abstract : Three-node relay channels which consist of a source, a relay and a destinationare considered in this thesis. In the first part, an uncoded relay channelis studied. READ MORE

  4. 2. Interference Cancellation for DS/CDMA Systems in Flat Fading Channels

    Author : Ann-Louise Johansson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mixed modulation; direct-sequence code division multiple access DS CDMA ; multiuser detection.; multiple data rates; parallel channels; multicode; interference cancellation;

    Abstract : This thesis investigates interference cancellation in direct-sequence codedivision multiple access (DS/CDMA) systems that support multiple data rates.Two approaches for implementing multiple data rates are considered. Oneis the use of mixed modulation. The second is the use of parallel channels. READ MORE

  5. 3. Rate adaption for progressively encoded video over fading AWGN channels

    Author : Martin Sehlstedt; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Abstract : With the increased capacity of the Internet it is possible to use it for real-time multimedia applications, such as video conferences. There is also an increasing interest in using Internet technology in cellular networks, such as mobile phones. READ MORE

  6. 4. Maximum likelihood sequence detection by using the SA(B,C) algorithm : state partition methods

    Author : Andreas Cedergren; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; C ; partitioning; CPM; MLSD; SA B; reduced complexity; ISI; AWGN channels; asymptotical optimality;

    Abstract : .... READ MORE

  7. 5. Physical layer optimization for transportation of scalable media over AWGN channels

    Author : Martin Sehlstedt; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Abstract : This thesis presents research results on how the physical layer can aid in the delivery of scalable media. The thesis focuses on wireless links (point-to-point and broadcast) due to their lower capacity. READ MORE