Results 11 to 20 of about 13,970 (185)

Multiplicatively Repeated Nonbinary LDPC Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2011
We propose non-binary LDPC codes concatenated with multiplicative repetition codes. By multiplicatively repeating the (2,3)-regular non-binary LDPC mother code of rate 1/3, we construct rate-compatible codes of lower rates 1/6, 1/9, 1/12,... Surprisingly, such simple low-rate non-binary LDPC codes outperform the best low-rate binary LDPC codes so far ...
Kasai, Kenta   +3 more
openaire   +6 more sources

Evaluation of Low Density Parity Check Codes Over Various Channel Types [PDF]

open access: yesEngineering and Technology Journal, 2011
Low density parity check (LDPC) codes are one of the best error correcting codes in today’s coding world and are known to approach the Shannon limit. As with all other channel coding schemes, LDPC codes add redundancy to the uncoded input data to make it
Mahmood Farhan Mosleh
doaj   +1 more source

New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
Trapping sets are considered the primary factor for degrading the performance of low-density parity-check (LDPC) codes in the error-floor region. The effect of trapping sets on the performance of an LDPC code becomes worse as the code size decreases. One
Mohamed Adnan Landolsi   +2 more
doaj   +2 more sources

High performance short-block binary regular LDPC codes

open access: yesAlexandria Engineering Journal, 2018
LDPC code shows a good performance with long-block codes. However, certain channels are constrained to use short-block codes due to latency. Therefore, concatenated LDPC codes with iterative decoding is a good choice to get a good performance ...
Latifa Mostari, Abdelmalik Taleb-Ahmed
doaj   +1 more source

On the Minimum Distance of Generalized Spatially Coupled LDPC Codes [PDF]

open access: yes, 2013
Families of generalized spatially-coupled low-density parity-check (GSC-LDPC) code ensembles can be formed by terminating protograph-based generalized LDPC convolutional (GLDPCC) codes.
Costello Jr, Daniel J.   +2 more
core   +2 more sources

Reverse Concatenated Coded Modulation for High-Speed Optical Communication

open access: yesIEEE Photonics Journal, 2010
We propose the reverse concatenated code as a forward error correction (FEC) scheme suitable for beyond 100-Gb/s optical transmission. In this scheme, BCH code is used as inner code and low-density parity-check (LDPC) code as outer code.
Ivan B. Djordjevic, Lei Xu, Ting Wang
doaj   +1 more source

Cooperative MIMO Communication at Wireless Sensor Network: An Error Correcting Code Approach

open access: yesSensors, 2011
Cooperative communication in wireless sensor network (WSN) explores the energy efficient wireless communication schemes between multiple sensors and data gathering node (DGN) by exploiting multiple input multiple output (MIMO) and multiple input single ...
Mohammad Rakibul Islam, Young Shin Han
doaj   +1 more source

Time-invariant LDPC convolutional codes [PDF]

open access: yes2017 IEEE International Symposium on Information Theory (ISIT), 2017
Submitted to 2017 IEEE International Symposium on Information ...
Achlioptas, Dimitris   +3 more
openaire   +2 more sources

Weight Distribution for Non-binary Cluster LDPC Code Ensemble [PDF]

open access: yes, 2013
In this paper, we derive the average weight distributions for the irregular non-binary cluster low-density parity-check (LDPC) code ensembles. Moreover, we give the exponential growth rate of the average weight distribution in the limit of large code ...
Kasai, Kenta   +3 more
core   +2 more sources

LDPC Coded Massive MIMO Systems [PDF]

open access: yesEntropy, 2019
We design a coded massive multiple-input multiple-output (MIMO) system using low-density parity-check (LDPC) codes and iterative joint detection and decoding (JDD) algorithm employing a low complexity detection. We introduce the factor graph representation of the LDPC coded massive MIMO system, based on which the message updating rule in the JDD is ...
Inho Hwang, Han Jin Park, Jeong Woo Lee
openaire   +3 more sources

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