Essays about: "Low-Density Parity-Check LDPC codes"

Showing result 11 - 13 of 13 essays containing the words Low-Density Parity-Check LDPC codes.

  1. 11. Efficient Decoding Algorithms for Low-Density Parity-Check Codes

    University essay from Institutionen för systemteknik

    Author : Anton Blad; [2005]
    Keywords : Electronics; LDPC; Low Density Parity Check; Tanner graph; decoding; sum-product; probability propagation; early decision; threshold; Elektronik;

    Abstract : Low-density parity-check codes have recently received much attention because of their excellent performance and the availability of a simple iterative decoder. The decoder, however, requires large amounts of memory, which causes problems with memory consumption. READ MORE

  3. 12. Efficient Message Passing Decoding Using Vector-based Messages

    University essay from Institutionen för systemteknik

    Author : Mikael Grimnell; Mats Tjäder; [2005]
    Keywords : Forward Error Correction; Low Density Parity Check Codes; Message Passing Decoding; Belief Propagation; Extrinsic Information Transfer; Galois Fields; Phase Shift Keying;

    Abstract : The family of Low Density Parity Check (LDPC) codes is a strong candidate to be used as Forward Error Correction (FEC) in future communication systems due to its strong error correction capability. Most LDPC decoders use the Message Passing algorithm for decoding, which is an iterative algorithm that passes messages between its variable nodes and check nodes. READ MORE

  4. 13. Low-density Parity-Check decoding Algorithms

    University essay from Institutionen för systemteknik

    Author : Florent Pirou; [2004]
    Keywords : Electronics; LDPC; Low-density parity-check codes; channel coding; FEC; iterative algorithm; Gallager; message-passing algorithm; belief propagation algorithm; ; Elektronik;

    Abstract : Recently, low-density parity-check (LDPC) codes have attracted much attention because of their excellent error correcting performance and highly parallelizable decoding scheme. However, the effective VLSI implementation of and LDPC decoder remains a big challenge and is a crucial issue in determining how well we can exploit the benefits of the LDPC codes in the real applications. READ MORE