Search for dissertations about: "Rayleigh channels"

Showing result 1 - 5 of 47 swedish dissertations containing the words Rayleigh channels.

  1. 1. Detection principles for fast Rayleigh fading channels using an antenna array

    Author : Anders Hansson; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; iterative decoding; serially concatenated coding; adaptive antenna arrays; multiple antennas; APP algorithm; diversity reception; Rayleigh channels; correlation; sequence detection; fading channels;

    Abstract : .... READ MORE

  2. 2. On Soft Decoding and Robust Vector Quantization

    Author : Mikael Skoglund; Chalmers University of Technology; []
    Keywords : speech and image coding; intersymbol interference; Rayleigh fading; soft decoding; CDMA; index assignment; Hadamard transform; channel optimized VQ; robust VQ; combined source-channel coding; vector quantization VQ ; noisy channels;

    Abstract : This thesis considers vector quantization for noisy channels. Vector quantization (VQ) is an important technique for block-based source coding, with applications in, e.g., speech and image coding. READ MORE

  3. 3. Prediction of Mobile Radio Channels : Modeling and Design

    Author : Torbjörn Ekman; Rodney Vaughan; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Systemteknik; mobile radio channel; fading; channel model; channel estimation; channel prediction; power prediction; Systemteknik; Systems engineering; Systemteknik; Signal Processing; signalbehandling;

    Abstract : Prediction of the rapidly fading envelope of a mobile radio channel enables a number of capacity improving techniques like fast resource allocation and fast link adaptation. This thesis deals with linear prediction of the complex impulse response of a channel and unbiased quadratic prediction of the power. READ MORE

  4. 4. Diversity and Interference Aspects in the Downlink of Code Division Multiple Access Systems

    Author : Anders Persson; Chalmers University of Technology; []
    Keywords : orthogonal frequency division multiplexing; multi-carrier modulation; Rayleigh-fading channels; code division multiple access; frequency-selective channels; multiple access interference; diversity;

    Abstract : This thesis consists of six included papers and technical reports, plus an introduction. The topic studied is interference and diversity aspects in code division multiple access (CDMA) systems for mobile cellular communications. The focus in the papers is on the downlink - the communication link from the base station to the mobile terminal. READ MORE

  5. 5. On convolutional codes and multi-carrier techniques for CDMA systems

    Author : Anders Persson; Chalmers University of Technology; []
    Keywords : union bound; OFDM; Rayleigh-fading channels; convolutional codes; multi-carrier; frequency-selective channels; channelization; CDMA;

    Abstract : .... READ MORE