Sökning: "Viterbi algorithm"

Visar resultat 11 - 15 av 17 uppsatser innehållade orden Viterbi algorithm.

  1. 11. Low complexity algorithms for faster-than-Nyquistsign : Using coding to avoid an NP-hard problem

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Emil Ringh; [2013]
    Nyckelord :;

    Sammanfattning : This thesis is an investigation of what happens when communication links are pushed towards their limits and the data-bearing-pulses are packed tighter in time than previously done. This is called faster-than-Nyquist (FTN) signaling and it will violate the Nyquist inter-symbol interference criterion, implying that the data-pulsesare no longer orthogonal and thus that the samples at the receiver will be dependent on more than one of the transmitted symbols. LÄS MER

  3. 12. Fast Viterbi Decoder Algorithms for Multi-Core System

    Master-uppsats, KTH/Signalbehandling

    Författare :Zilong Ju; [2012]
    Nyckelord :Parallel algorithm; Viterbi algorithm; Tail biting convolutional code; Multi-core;

    Sammanfattning : In this thesis, fast Viterbi Decoder algorithms for a multi-core system are studied. New parallel Viterbi algorithms for decoding convolutional codes are proposed based on tail biting trellises. LÄS MER

  4. 13. A High Throughput Low Power Soft-Output Viterbi Decoder

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Gan Ouyang; [2011]
    Nyckelord :Soft-Output Viterbi Decoder; High Throughput; Low Power; MB-OFDM UWB;

    Sammanfattning : A high-throughput low-power Soft-Output Viterbi decoder designed for the convolutional codes used in the ECMA-368 UWB standard is presented in this thesis. The ultra wide band (UWB) wireless communication technology is supposed to be used in physical layer of the wireless personal area network (WPAN) and next generation Blue Tooth. LÄS MER

  5. 14. Evaluation of Word Length Effects on Multistandard Soft Decision Viterbi Decoding

    Master-uppsats, Elektroniksystem

    Författare :Ahmed Salim; [2011]
    Nyckelord :Soft-Decision Viterbi; Tail-biting; Zero-tail; Direct Trace-back; Word Length effects; floating point quantization; BER analysis;

    Sammanfattning : There have been proposals of many parity inducing techniques like Forward ErrorCorrection (FEC) which try to cope the problem of channel induced errors to alarge extent if not completely eradicate. The convolutional codes have been widelyidentified to be very efficient among the known channel coding techniques. LÄS MER

  7. 15. RTL implementation of Viterbi Decoder

    L1-uppsats, Institutionen för systemteknik

    Författare :Wei Chen; [2006]
    Nyckelord :baseband FEC Viterbi Decoding;

    Sammanfattning : A forward error correction technique known as convolutional coding with Viterbi decoding was explored in this final thesis. This Viterbi project is part of the baseband Error control project at electrical engineering department, Linköping University. In this project, the basic Viterbi decoder behavior model was built and simulated. LÄS MER