In this paper we propose a diversity preserving hard decision decoding scheme for parity check codes (PCC) over Rayleigh fading channels. The proposed flip decoding scheme has linear complexity in the block length. Theoretical analysis and simulation results verify the correctness of the proposed ...
Improved code design and construction for a low-density parity-check codes for multiple-input multiple-output channel In order multi input multi outputs (MIMO) to operate with system, low it is method and the device which form the density parity check cord/code with the IE... エロズ,ムスタ...
According to certain embodiments, a method is provided for fast layered decoding for Low-density Parity-Check (LDPC) codes with a Parity-Check Matrix (PCM) that includes at least a first layer and a second layer. The method includes read... S Amirpasha,M Magnus,S Sara,... 被引量: 0...
Parity check systems, perfect codes and codes over Frobenius rings 来自 kth.diva-portal.org 喜欢 0 阅读量: 14 作者: Westerbäck, Thomas 摘要: This thesis consists of five papers related to coding theory. The first four papers are mainly devoted to perfect 1-error correcting binary ...
The soft-decision decoding methods for maximum-transition-run (MTR) codes have been considered extensively, in order to enable a wider implementation of MT... N Djuric,V Enk 被引量: 0发表: 2015年 Low-density parity-check codes and iterative decoding for two-track two-head E/sup 2/PR4 ch...
In this paper the applicability of low density parity check (LDPC) codes to a frequency hopped communications system with partial-band jamming is investigated. We show an irregular LDPC code which exhibits good waterfall and error floor performance with a block length of 1560 bits using binary pha...
We introduce a new class of low-density parity-check (LDPC) codes constructed from a template called a protograph. The protograph serves as a blueprint for constructing LDPC codes of arbitrary size whose performance can be predicted by analyzing the protograph. We apply standard density evolution...
Consider two parity check codes.Code I is generated by the rulex1=u1 x4=u1⊕u2x2=u2 x5=u1⊕u3x3=u3 x6=u2⊕u3 x7=u1⊕u2⊕u3 Code II is the same except that x6=u2. (1)Write down the generator matrix and parity check matrix for code I.(2)Write out a decoding table for code ...
Low Density Parity Check(LDPC) codes is one of the high topics of the channel coding theory and has been paid more and more attention.This paper begins with a brief review of channel coding theories.Then the iterative decoding algorithm of LDPC codes,so-called as Sum-Product algorithm or Bel...
In this correspondence, the construction of low-density parity-check (LDPC) codes from circulant permutation matrices is investigated. It is shown that such codes cannot have a Tanner graph representation with girth larger than 12, and a relatively mild necessary and sufficient condition for the cod...