Sökning: "Rayleigh fading"

Visar resultat 1 - 5 av 31 avhandlingar innehållade orden Rayleigh fading.

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

    Detta är en avhandling från Chalmers University of Technology

    Författare :Anders Å. Hansson; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; [2000]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fading channels; Rayleigh channels; correlation; diversity reception; multiple antennas; adaptive antenna arrays; sequence detection; serially concatenated coding; APP algorithm; iterative decoding;

    Sammanfattning : .... LÄS MER

  2. 2. Coding for multiple-access and fading channels

    Detta är en avhandling från Department of Information Technology, Lund Univeristy

    Författare :Leif Wilhelmsson; Lunds universitet.; Lund University.; [1998]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gilbert-Elliott channel model; Systems engineering; Imperfect interleaving; Fading; Error correcting codes; Pre-coding; Channel capacity; Direct-sequence code-division multiple-access DS-CDMA ; Frequency-hopped code-division multiple-access FH-CDMA ; computer technology; Data- och systemvetenskap; Telecommunication engineering; Telekommunikationsteknik;

    Sammanfattning : This thesis treats some information-theoretical and coding aspects of communication over multiple-access and fading channels. It consists of a general introduction and seven papers. In code-division multiple-access (CDMA) communication, many users have access to the channel simultaneously. LÄS MER

  3. 3. Efficient Digital Communication over the Time Continuous Rayleigh Fading Channel

    Detta är en avhandling från Chalmers University of Technology

    Författare :Ulf Hansson; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; [1997]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Informationsteknik; Information technology;

    Sammanfattning : .... LÄS MER

  4. 4. Prediction of Mobile Radio Channels Modeling and Design

    Detta är en avhandling från Uppsala : Institutionen för materialvetenskap

    Författare :Torbjörn Ekman; Uppsala universitet.; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Systemteknik; mobile radio channel; fading; channel model; channel estimation; channel prediction; power prediction; Systemteknik; TECHNOLOGY Information technology Systems engineering; TEKNIKVETENSKAP Informationsteknik Systemteknik; Signal Processing; signalbehandling;

    Sammanfattning : 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. LÄS MER

  5. 5. Energy Constrained Wireless Sensor Networks Communication Principles and Sensing Aspects

    Detta är en avhandling från Uppsala : Institutionen för teknikvetenskaper

    Författare :Erik Björnemo; Uppsala universitet.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wireless sensor network; communication under processing cost; wireless channels; fading; probability theory as logic; uncertainty; measurement capacity; TECHNOLOGY Information technology Signal processing; TEKNIKVETENSKAP Informationsteknik Signalbehandling;

    Sammanfattning : Wireless sensor networks are attractive largely because they need no wired infrastructure. But precisely this feature makes them energy constrained, and the consequences of this hard energy constraint are the overall topic of this thesis. LÄS MER