Results 61 to 70 of about 58,265 (286)

Performance Analysis for Cooperative Communication System with QC-LDPC Codes Constructed with Integer Sequences

Discrete Dynamics in Nature and Society, 2015
This paper presents four different integer sequences to construct quasi-cyclic low-density parity-check (QC-LDPC) codes with mathematical theory. The paper introduces the procedure of the coding principle and coding.
Yan Zhang, Feng-fan Yang, Weijun Song
doaj   +1 more source

Investigating the Performance of Coded GSIM DCSK Communication Systems over Multipath Rayleigh Fading Channel

Journal of Communications Software and Systems
Index modulation−based differential chaos shift keying (IM−DCSK) is a promising technique in wireless communication systems. Among all schemes, a Grouping Subcarrier Index Modulation DCSK (GSIM−DCSK) supports suit−coded modulation to improve bit error ...
Ali Jaber Al-Askery, Fadhil Sahib Hasan, Ahmed A. Thabit   +2 more
doaj   +1 more source

LDPC Codes Achieve List Decoding Capacity [PDF]

IEEE Annual Symposium on Foundations of Computer Science, 2019
We show that Gallager's ensemble of Low-Density Parity Check (LDPC) codes achieves list-decoding capacity with high probability. These are the first graph-based codes shown to have this property.
Jonathan Mosheiff, Nicolas Resch, Noga Ron-Zewi, Shashwat Silas, Mary Wootters   +4 more
semanticscholar   +1 more source

Designing Protograph-Based Quasi-Cyclic Spatially Coupled LDPC Codes With Large Girth

IEEE Transactions on Communications, 2020
Spatially coupled (SC) low-density parity-check (LDPC) codes can achieve capacity approaching performance with low message recovery latency when using sliding window (SW) decoding.
Shiyuan Mo, Li Chen, D. Costello, David G. M. Mitchell, R. Smarandache, J. Qiu   +5 more
semanticscholar   +1 more source

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

iMeta, EarlyView.
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

An Opportunistic Error Correction Layer for OFDM Systems [PDF]

, 2009
In this paper, we propose a novel cross layer scheme to lower power\ud consumption of ADCs in OFDM systems, which is based on resolution\ud adaptive ADCs and Fountain codes. The key part in the new proposed\ud system is that the dynamic range of ADCs can
Schiphorst, Roel, Shao, Xiaoying, Slump, Cornelis H.   +2 more
core   +4 more sources

Improving the Tolerance of Stochastic LDPC Decoders to Overclocking-Induced Timing Errors: A Tutorial and a Design Example

IEEE Access, 2016
Channel codes, such as low-density parity-check (LDPC) codes, may be employed in wireless communication schemes for correcting transmission errors. This tolerance to channel-induced transmission errors allows the communication schemes to achieve higher ...
Xin Zuo, Isaac Perez-Andrade, Robert G. Maunder, Bashir M. Al-Hashimi, Lajos Hanzo   +4 more
doaj   +1 more source

Performance Analysis of the LDPC‐Coded Hybrid LQAM‐MPPM for UWOC Systems

IET Optoelectronics, Volume 20, Issue 1, January/December 2026.
The effectiveness of LDPC codes in improving the performance of hybrid modulations is discussed, with coded 128‐QAM‐(12, 2) MPPM offering ~6.5 and 5.8 dB code gains at a BER of in strong and moderate turbulence, respectively. These results demonstrate the promise of hybrid modulation with LDPC as a robust and efficient modulation scheme for UWOC ...
Hongyan Jiang, Wanyi Hu, Xin Liao, Ning He, Wasiu Popoola, Ahmad Fairuz Omar, Sujan Rajbhandari   +6 more
wiley   +1 more source

On the Stopping Distance of SA-LDPC Codes by Transversal Designs

IEEE Access, 2018
In this paper, we analyze the size of the smallest stopping set (called the stopping distance) for the parity-check matrix of a superposed array low-density parity-check (SA-LDPC) code for column weights 3 and 4 by using the transversal design (TD ...
Zahra Ferdosi, Farhad Rahmati, Mohammad Hesam Tadayon   +2 more
doaj   +1 more source

Scene‐Driven Semantic Alignment for Generative Communication in Underwater Images

IET Signal Processing, Volume 2026, Issue 1, 2026.
Underwater images serve as one of the most intuitive media for human perception of underwater environments. However, the limited bandwidth and susceptibility to noise in underwater acoustic (UWA) channels pose significant challenges for traditional image encoding and transmission methods, thereby hindering high‐quality image reconstruction.
Yuetong Li, Zhenyu Jia, Yuyang Peng, Yi Zhu, Fei Yuan, Li Chai   +5 more
wiley   +1 more source