Results 41 to 50 of about 853 (182)

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

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

open access: yesTsinghua 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   +5 more
doaj   +1 more source

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

open access: yesIET 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   +3 more
wiley   +1 more source

Combinatorial design-based quasi-cyclic LDPC codes with girth eight

open access: yesDigital Communications and Networks, 2018
This paper presents a novel regular Quasi-Cyclic (QC) Low Density Parity Check (LDPC) codes with column-weight three and girth at least eight. These are designed on the basis of combinatorial design in which subsets applied for the construction of ...
Sina Vafi, Narges Rezvani Majid
doaj   +1 more source

5G‐coded fluid antenna multiple access over block fading channels

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This letter investigates the use of 5G New Radio (NR) Modulation Coding Scheme (MCS) for FAMA systems to improve its connectivity over block fading channels. In particular, we propose an iterative decoding receiver with iterative interference covariance estimation, designed explicitly for slow fading channels.
Hanjiang Hong   +4 more
wiley   +1 more source

Adaptive Coding‐Based Quantum Communication System for Image Transmission

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
Adaptive coding‐based quantum communication demonstrates the superior robustness and higher image quality compared to the adaptive coding‐based classical communication in varying channel noise conditions and bandwidth‐restricted applications. ABSTRACT This work presents a quantum communication system enhanced with adaptive coding, aimed at improving ...
Udara Jayasinghe   +4 more
wiley   +1 more source

A Non‐Binary Dual Cascade Polar Codes Construction and Low‐Complexity SCL Decoding

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
First, we design an error‐correction approach including two cascade non‐binary polar coding (NB‐CPolar) structures and a cyclic redundancy check (CRC) code. Second, we propose a low‐complexity decoding algorithm based on non‐binary successive cancellation list (NB‐LSCL) decoding.
Baoxin Su   +3 more
wiley   +1 more source

Construction Method of QC-LDPC Codes with Big Girth for Fast Encoding [PDF]

open access: yesJisuanji gongcheng, 2018
The sub-matrices on both diagonals of the right half of the check matrix are unit matrices.Existence of the deterministic unit matrix not only destroys the randomness of Quasie Cyclic-Low Density Parity Check(QC-LDPC) code,it leads to a certain loss of ...
PENG Haiying,YANG Jian,SUN Lijun
doaj  

Deep Learning Based Design of Binary Signalling for Optical Wireless Communication Systems With 2D Receiver

open access: yesIET Optoelectronics, Volume 19, Issue 1, January/December 2025.
We apply a deep learning (DL) technique to binary signalling design for optical wireless communication (OWC) system with a 2D LED transmitter array and an arrayed 2D receiver. It is demonstrated that the DL‐based signalling design algorithm is feasible for OWC system, considering physical channel effect. ABSTRACT Recently, deep learning (DL) techniques
Yongwoon Hwang   +2 more
wiley   +1 more source

Performance of Cascade and LDPC Codes for Information Reconciliation on Industrial Quantum Key Distribution Systems

open access: yesIET Quantum Communication, Volume 6, Issue 1, January/December 2025.
This paper evaluates Cascade and LDPC codes for information reconciliation in industrial quantum key distribution systems. We highlight efficient methods for minimising key mismatches and optimising performance by analysing often overlooked aspects and proposing new metrics.
Ronny Mueller   +7 more
wiley   +1 more source

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