Results 71 to 80 of about 18,008 (158)

On LDPC codes for Gaussian interference channels [PDF]

2014 IEEE International Symposium on Information Theory, 2014
In this paper, we focus on the two-user Gaussian interference channel (GIC), and study the Han-Kobayashi (HK) coding/decoding strategy with the objective of designing low-density parity-check (LDPC) codes. A code optimization algorithm is proposed which adopts a random perturbation technique via tracking the average mutual information.
Shahrouz Sharifi, Ahmet Korhan Tanc, Tolga M. Duman   +2 more
openaire   +4 more sources

QMM‐Enhanced Error Correction: Demonstrating Reversible Imprinting and Retrieval for Robust Quantum Computation

Advanced Quantum Technologies, Volume 8, Issue 9, September 2025.
Hardware experiments show a single‐layer Quantum Memory Matrix booster cuts logical error sixfold and, when prepended to a [3,1,3]$[3,1,3]$ repetition code, attains 94 % logical fidelity without extra CX gates. QMM dressing also lowers variational‐training loss by 35 %, offering a measurement‐free, resource‐light route to error suppression on NISQ ...
Florian Neukart, Eike Marx, Valerii Vinokur, Jeff Titus   +3 more
wiley   +1 more source

Construction of Quasi-Cyclic Low Density Parity Check Codes for Magnetic Induction Communication

IEEE Access, 2019
The magnetic induction (MI) communication has been proved to be an effective method in the wireless underground sensor networks (WUSN). MI communication system based on quasi-cyclic low density parity check (QC-LDPC) codes is expected to improve the ...
Hua Xu, Yanjing Sun, Wenjuan Shi
doaj   +1 more source

Cost‐Effective DNA Storage System with DNA Movable Type

Advanced Science, Volume 12, Issue 9, March 6, 2025.
This study presents a cost‐effective “DNA‐movable‐type storage” system inspired by movable type printing. Utilizing reusable prefabricated DNA‐MTs and an automated inkjet printer, BISHENG‐1 stores and retrieves 43.7 KB of data in vitro and in vivo with only 350 DNA‐MTs, achieving storage costs of $122 MB−1–significantly more cost‐efficient than ...
Chenyang Wang, Di Wei, Zheng Wei, Dongxin Yang, Jing Xing, Yunze Wang, Xiaotong Wang, Pei Wang, Guannan Ma, Xinru Zhang, Haolan Li, Chuan Tang, Pengfei Hou, Jie Wang, Renjun Gao, Guiqiu Xie, Cuidan Li, Yingjiao Ju, Peihan Wang, Liya Yue, Yongliang Zhao, Yongjie Sheng, Jingfa Xiao, Haitao Niu, Sihong Xu, Huaiyi Yang, Di Liu, Bo Duan, Dongbo Bu, Guangming Tan, Fei Chen   +30 more
wiley   +1 more source

Design of LDPC Codes: A Survey and New Results

Journal of Communications Software and Systems, 2006
This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining(near-)optimal degree distributions for LDPC code ensembles.
Gianluigi Liva, Shumei Song, Lan Lan, Yifei Zhang, Shu Lin, William E. Ryan   +5 more
doaj  

LDPC Codes on Balanced Incomplete Block Designs: Construction, Girth, and Cycle Structure Analysis

Entropy
In this paper, we investigate the cycle structure inherent in the Tanner graphs of low-density parity-check (LDPC) codes constructed from balanced incomplete block designs (BIBDs).
Hengzhou Xu, Xiaodong Zhang, Mengmeng Xu, Haipeng Yu, Hai Zhu   +4 more
doaj   +1 more source

On the Girth of Tanner (3, 13) Quasi-Cyclic LDPC Codes

IEEE Access, 2019
Girth is an important structural property of low-density parity-check (LDPC) codes. Motivated by the works on the girth of Tanner (3, 5), (3, 7), (3, 11), and (5, 7) quasi-cyclic (QC) LDPC codes, we, in this paper, study the girth of Tanner (3, 13) QC ...
Hengzhou Xu, Huaan Li, Dan Feng, Bo Zhang, Hai Zhu   +4 more
doaj   +1 more source

Analyzing Finite-length Protograph-based Spatially Coupled LDPC Codes

, 2014
The peeling decoding for spatially coupled low-density parity-check (SC-LDPC) codes is analyzed for a binary erasure channel. An analytical calculation of the mean evolution of degree-one check nodes of protograph-based SC-LDPC codes is given and an ...
Olmos, Markus Stinner Pablo M.
core   +1 more source

LDPC Codes in Communications and Broadcasting [PDF]

IEICE Transactions on Communications, 2007
SUMMARY Low-density parity-check (LDPC) codes are one of the most powerful error correcting codes and are attracting much attention these days. LDPC codes are promising for communications and broadcasting as well where the use of error correcting codes are essential.
openaire   +1 more source

Symbol detection aided channel prediction in fast‐varying massive MIMO systems: Framework and performance analysis

IET Communications, Volume 19, Issue 1, January/December 2025.
The transmission structure is designed to obtain the accurate channel state information in time‐varying environment. On this basis, communication performance of multiple‐input multiple‐output system is improved by symbol detection aided channel prediction.
Wei Gao, Junqiang Xiao, Chuan Liu, Wei Peng   +3 more
wiley   +1 more source