Sökning: "Rayleigh fading"

Visar resultat 1 - 5 av 51 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.; [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. The Information-Theoretic Cost of Learning Fading Channels

    Detta är en avhandling från Chalmers University of Technology

    Författare :Wei Yang; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shannon capacity; outage capacity; block-fading channel; finite blocklength; quasi-static fading; multiple antennas;

    Sammanfattning : Recent results in communication theory suggest that significant throughput gains in wireless fading networks can be achieved by exploiting network coordination (e.g., CoMP, network MIMO, and interference alignment), provided that each node in the network has perfect channel knowledge. LÄS MER

  4. 4. 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.; [1997]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Informationsteknik; Information technology;

    Sammanfattning : Frequency flat, fast Rayleigh fading may be considered the most critical disturbance in a wireless communication system. In its most general form, it is modeled as a multiplicative time continuous random (zero mean complex Gaussian) distortion of the transmitted signal. LÄS MER

  5. 5. 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