Results 71 to 80 of about 23,935 (248)
Multilevel LDPC Codes Design for Multimedia Communication CDMA System
EURASIP Journal on Wireless Communications and Networking, 2004 We design multilevel coding (MLC) with a semi-bit interleaved coded modulation (BICM) scheme based on low density parity check (LDPC) codes. Different from the traditional designs, we joined the MLC and BICM together by using the Gray mapping, which is ...
Hou Jia, Yi Yu, Lee Moon Ho
doaj +2 more sources
Hierarchical and High-Girth QC LDPC Codes
, 2011 We present a general approach to designing capacity-approaching high-girth low-density parity-check (LDPC) codes that are friendly to hardware implementation.
Draper, Stark C. +2 more
core +2 more sources
Methods of Sparse Measurement Matrix Optimization for Compressed Sensing
IET Signal Processing, Volume 2025, Issue 1, 2025.In compressed sensing (CS), a sparse measurement matrix with few nonzero entries is more competitive than a dense matrix in reducing the number of multiplication units. Recent studies indicate that an optimized measurement matrix having low coherence with a specified dictionary can significantly improve the reconstruction performance.
Renjie Yi +5 more
wiley +1 more source
Novel construction of QC-LDPC codes with modified 2-D GRS codes
Tongxin xuebao, 2015 The construction method for QC-LDPC (quasi-cyclic low density parity-check) code with modified two-dimensional generalized reed-solomon (2-D GRS) code is proposed using the generator polynomial of GRS code,so thus the constructed code can have better ...
Ming ZHAO, Xiao-lin ZHANG
doaj +2 more sources
Iterative decoding of SOVA and LDPC product code for bit-patterned media recoding
AIP Advances, 2018 The demand for high-density storage systems has increased due to the exponential growth of data. Bit-patterned media recording (BPMR) is one of the promising technologies to achieve the density of 1Tbit/in2 and higher.
Seongkwon Jeong, Jaejin Lee
doaj +1 more source
Perbandingan Kinerja LDPC (Low Densiti Parity Check) Dengan Metode Decoding Bit Flip Pada Kanal AWGN dengan Multipath Fading [PDF]
, 2011 As an effect of the globalization era, telecomunication technology, especially in wireless comunication system is forced to prepare high data rate with reliable Quality of Services (QOS) with Low Bit Error Rate (BER) and very small power.
Moegiharto, Yoedy, PRASETYO, BENY NUR
core
, 2016 In this paper, we propose a new approach to construct a class of check-hybrid generalized low-density parity-check (CH-GLDPC) codes which are free of small trapping sets.
Chilappagari +6 more
core +3 more sources
Blind Recognition Algorithm of Convolutional Code via Convolutional Neural Network
International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.Pointing at the vexed question of blind recognition in the convolutional code class, this paper proposes a convolutional code blind identification method via convolutional neural networks (CNNs). First, this algorithm uses the traditional method to generate different convolutional codes, and the feature extraction algorithm adopts the theorem of Euclid’
Pan Deng +6 more
wiley +1 more source
Doped low-density parity-check codes
Digital Communications and NetworksIn this paper, we propose a doping approach to lower the error floor of Low-Density Parity-Check (LDPC) codes. The doping component is a short block code in which the information bits are selected from the coded bits of the dominant trapping sets of the ...
Yong Li +5 more
doaj +1 more source
Generic 5G NR LDPC Encoder Architecture Optimized for Area and Throughput
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.Physical Downlink Shared Channel (PDSCH) in 5G New Radio (NR) uses LDPC codes as the channel coding solution for their efficient error‐correcting performance and suitability for high‐speed communications. To meet the high‐throughput requirements of the 5G NR technology, this paper discusses different 5G NR LDPC encoder architectures that enable ...
Muhammed Tarek +4 more
wiley +1 more source