Sökning: "Linear block codes"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Linear block codes.

  1. 1. Coding and Decoding of Reed-Muller Codes

    Kandidat-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Författare :Linda Meyer; [2021]
    Nyckelord :error-correcting codes; Reed-Muller; coding; decoding; communication; coding theory; felrättande koder; Reed-Muller; kodningsteori; kod; kodning; kommunikation;

    Sammanfattning : In this thesis some families of linear error correcting codes are presented. The reader will find a general description of binary codes and more specific details about linear codes such as Hamming, repetition codes, Reed-Muller codes, etc. LÄS MER

  3. 2. Implementation of Low-Density Parity-Check codes for 5G NR shared channels

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Lifang Wang; [2021]
    Nyckelord :New radio NR ; Shared channel; Channel coding; Low-Density Parity-Check LDPC codes; Layered Normalized Min-Sum Algorithm LNMSA ; Layered Offset Min-Sum Algorithm LOMSA ; Ny radio NR ; Delad kanal; Kanalkodning; Paritetskontrollkoder med låg LDPC densitet; Layered Normalized Min-Sum Algorithm LNMSA ; Layered Offset Min-Sum Algorithm LOMSA ;

    Sammanfattning : Channel coding plays a vital role in telecommunication. Low-Density Parity- Check (LDPC) codes are linear error-correcting codes. According to the 3rd Generation Partnership Project (3GPP) TS 38. LÄS MER

  4. 3. Construction of Superimposed Codes Using Graphs and Galois Fields

    Kandidat-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Författare :David Johansson; [2017]
    Nyckelord :;

    Sammanfattning : In this thesis some constructions of superimposed codes are presented. Many of the known nontrivial constructions arise from t−designs, and the constructions discussed in this thesis is also based on a block design idea. Superimposed codes are rather combinatorial in nature, so the connection to t−designs is not too surprising. LÄS MER

  5. 4. Performance Evaluation of Error Correcting Techniques for OFDM Systems

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

    Författare :Yasir Javed Qazi; Jawad Ahmed Malik; Safwan Muhammad; [2014]
    Nyckelord :OFDM; Linear block codes; Convolution codes; Reed-Solomon codes;

    Sammanfattning : Orthogonal frequency-division multiplexing (OFDM) systems provide efficient spectral usage by allowing overlapping in the frequency domain. Additionally, they are highly immune to multipath delay spread. LÄS MER

  7. 5. Root LDPC Codes for Non Ergodic Transmission Channels

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Tarique Inayat Bhutto; [2011]
    Nyckelord :Non-Binary Root LDPC codes; LDPC codes; Binary-Root LDPC codes;

    Sammanfattning : 4 ABSTRACT Tremendous amount of research has been conducted in modern coding theory in the past few years and much of the work has been done in developing new coding techniques. Low density parity check (LDPC) codes are class of linear block error correcting codes which provide capacity performance on a large collection of data transmission and storage channels while Root LDPC codes in this thesis work are admitting implementable decoders with manageable complexity. LÄS MER