Results 91 to 100 of about 595,487 (209)

Graph-Based Codes and Iterative Decoding [PDF]

open access: yes, 2003
The field of error correcting codes was revolutionized by the introduction of turbo codes in 1993. These codes demonstrated dramatic performance improvements over any previously known codes, with significantly lower complexity.
Khandekar, Aamod Dinkar
core   +1 more source

Low Complexity Encoder of High Rate Irregular QC-LDPC Codes for Partial Response Channels

open access: yesAdvances in Electrical and Computer Engineering, 2011
High rate irregular QC-LDPC codes based on circulant permutation matrices, for efficient encoder implementation, are proposed in this article. The structure of the code is an approximate lower triangular matrix.
IMTAWIL, V., MEESOMBOON, A., KUPIMAI, M.
doaj   +1 more source

Reliability Ratio Based Weighted Bit-Flipping Decoding for LDPC Codes

open access: yes, 2005
In this contribution, a novel reliability-ratio based weighted bit-flipping(RRWBF) algorithm is proposed for decoding Low Density Parity Check (LDPC) codes.
Hanzo, L., Guo, F.
core   +1 more source

Explicit construction of girth-eight QC-LDPC codes and its application in CRT method

open access: yesTongxin xuebao, 2012
For arbitrary code lengths of the form PL(P≥3L<sup>2</sup>/4+L-1),a new family of (4,L)-regular quasi-cyclic (QC) low-density parity-check (LDPC) codes was proposed explicitly with girth ight.Employing the new code as a component code in the ...
Guo-hua ZHANG, Rong SUN, Xin-mei WANG
doaj   +2 more sources

Analysis of voltage- and clock-scaling-induced timing errors in stochastic LDPC decoders

open access: yes, 2013
Low Density Parity Check (LDPC) decoders have an inherent capability of correcting the transmission errors that occur, when communicating over a hostile wireless channel.
Zuo, X.   +9 more
core   +1 more source

Short Blocklength Nonbinary Raptor-Like LDPC Coding Systems Design and Simulation

open access: yesIEEE Access
This paper explores an efficient rate-adaptive error correction coding scheme with a nonbinary (NB) $\mathrm {GF}(2^{q})$ extension of Raptor-like (RL) quasi-cyclic (QC) subclass of Low-Density Parity-Check (LDPC) codes.
Jakub Hyla, Wojciech Sulek
doaj   +1 more source

RS + LDPC-Staircase Codes for the Erasure Channel: Standards, Usage and Performance [PDF]

open access: yes, 2013
Application-Level Forward Erasure Correction (AL-FEC) codes are a key element of telecommunication systems. They are used to recover from packet losses when retransmission are not feasible and to optimize the large scale distribution of contents. In this
Detchart, Jonathan   +4 more
core  

Generalized Low-Density Parity-Check Coding Aided Multilevel Codes

open access: yes, 2006
Classic Low-Density Parity-Check (LDPC) codes have recently been used as component codes in Multilevel Coding (MLC) due to their impressive BER performance as well as owing to their flexible coding rates.
Tee, R.Y.S., Kuo, F.C., Hanzo, L.
core   +1 more source

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