Results 61 to 70 of about 15,682 (213)

Comparison of Parallelization Strategies for Min-Sum Decoding of Irregular LDPC Codes

Tsinghua Science and Technology, 2013
Low-Density Parity-Check (LDPC) codes are powerful error correcting codes. LDPC decoders have been implemented as efficient error correction codes on dedicated VLSI hardware architectures in recent years.
Hua Xu, Wei Wan, Wei Wang, Jun Wang, Jiadong Yang, Yun Wen   +5 more
doaj   +1 more source

Fast bootstrap and reliable readout using hidden references for DNA data storage

iMeta, Volume 5, Issue 1, February 2026.
This study provides a bootstrap readout framework for DNA data storage based on multiple‐fold hidden references. We employ a multi‐stage alignment and error correction strategy, transforming the de novo readout into a resequencing‐like workflow. Correlation to the hidden watermark reference identifies low‐error‐rate reads, and bit‐wise consensus ...
Weigang Chen, Shuang Liu, Quan Guo, Rui Qin, Qi Ge, Tingting Qi, Yingjin Yuan   +6 more
wiley   +1 more source

Channel code division multiple access and its multilevel structured LDPC based instantiation

, 2008
In this paper, we introduce and outline the concept of Channel Code Division Multiple Access (CCDMA) using a design example based on the recently proposed Multilevel Structured (MLS) LDPC codes. We succeeded in making the memory requirements of the multi-
Sheng Chen, Chen, Sheng, Bonello, N., Nicholas Bonello, Bonello, Nicholas, Rong Zhang, Zhang, Rong, Hanzo, Lajos, Hanzo, L., Lajos Hanzo   +9 more
core   +2 more sources

Secret Key Extraction Using Stable Channel Impulse Response in OFDM Wireless Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
The process of converting a complex impulse response (CIR) highest peak into a binary sequence is called ‘quantisation’. By quantising the CIR highest peaks, Alice and Bob will generate the secret key bit sequences KA and KB, respectively. The number of CIR highest peaks is infinite, and these highest peaks can be easily selected from the set of CIRs ...
Dinh Van Linh, Vu Van Yem, Hoang Thi Phuong Thao   +2 more
wiley   +1 more source

Joint Blind Identification of Cyclic Codes and Synchronization Scramblers From Synchronous Scrambling Sequences of Cyclic Codes Based on Soft Decision Information

IET Communications, Volume 20, Issue 1, January/December 2026.
A communication model for collaborative and non‐collaborative scenarios is proposed, where the error correction code used by the transmitter is a cyclic code and the scrambler used is a synchronous scrambler. The contents of the dashed boxes are the tasks of the non‐collaborative receiver and our research targets the contents of the red boxes, that is,
Yong Ding, Lei Ye, Kun Han, Peng Wang, Li Yu, Jialong Zhan   +5 more
wiley   +1 more source

Investigation of punctured LDPC codes and time-diversity on free-space optical links [PDF]

, 2011
In this paper, we analyze the behavior of DVB-S2 un-punctured/punctured low-density parity-check (LDPC) coded on-off-keying (OOK) under atmospheric turbulence conditions by utilizing time diversity. A performance characterization between these schemes is
Ghassemlooy, Zabih, Javornik, Tomaz, Kandus, Gorazd, Leitgeb, Erich, Czaputa, Martin   +4 more
core  

A Two‐Stage Genetic Algorithm for Joint Optimization of PAPR and PSLR for Precise Signal Reconstruction in OFDM‐ISAC Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper presents a two‐stage genetic algorithm based waveform design framework for OFDM integrated sensing and communication (ISAC) systems. In Stage‐1, a multi‐objective genetic algorithm jointly optimizes the peak‐to‐average power ratio (PAPR) and peak sidelobe level ratio (PSLR) under forward error correction and reserved subcarrier constraints ...
Haidong Xu, Zhanya Li, Xiaoxiao Zhuo, Guyue Zhu, Chenfeng Xu, Liang Tang, Yu Zhao   +6 more
wiley   +1 more source

A New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes [PDF]

IEEE Transactions on Communications, 2016
This paper considers density evolution for lowdensity parity-check (LDPC) and multi-edge type low-density parity-check (MET-LDPC) codes over the binary input additive white Gaussian noise channel. We first analyze three singleparameter Gaussian approximations for density evolution and discuss their accuracy under several conditions, namely at low rates,
Sachini Jayasooriya, Mahyar Shirvanimoghaddam, Lawrence Ong, Gottfried Lechner, Sarah J. Johnson   +4 more
openaire   +4 more sources

Sub-Graph Based Joint Sparse Graph for Sparse Code Multiple Access Systems

IEEE Access, 2018
Sparse code multiple access (SCMA) is a promising air interface candidate technique for next-generation mobile networks, especially for massive machine-type communications. In this paper, we design a low-density parity-check (LDPC) coded SCMA detector by
Ke Lai, Lei Wen, Jing Lei, Pei Xiao, Amine Maaref, Muhammad Ali Imran   +5 more
doaj   +1 more source

Age‐of‐Information‐Aware Bandwidth Resource Allocation Strategy for NR‐V2X

IET Communications, Volume 20, Issue 1, January/December 2026.
3rd Generation Partnership Project (3GPP) introduces new medium access control features in New Radio Vehicle‐to‐Everything (NR‐V2X) Mode 2, such as the semi‐persistent scheduling re‐evaluation mechanism, and specifies decentralised congestion control based on system‐level metrics including channel busy ratio and channel occupancy ratio, these ...
Xiaoming Jiang, Yujie Jiang, Yi Zhu, Jiayin Lv, Xuehua Song   +4 more
wiley   +1 more source