Results 41 to 50 of about 15,682 (213)

Analysis of voltage- and clock-scaling-induced timing errors in stochastic LDPC decoders

, 2013
Low Density Parity Check (LDPC) decoders have an inherent capability of correcting the transmission errors that occur, when communicating over a hostile wireless channel.
Zuo, X., Robert G. Maunder, Bashir M. Al-Hashimi, Maunder, R.G., Isaac Perez-Andrade, Perez-Andrade, I., Hanzo, L., Xin Zuo, Lajos Hanzo, Al-Hashimi, B.M.   +9 more
core   +1 more source

Non-binary protograph low-density parity-check codes for space communications [PDF]

, 2012
Protograph-based non-binary low-density parity-check (LDPC) codes with ultra-sparse parity-check matrices are compared with binary LDPC and turbo codes (TCs) from space communication standards.
Paolini, Enrico, G. Liva, B. Matuz, L. Costantini, Liva, Gianluigi, Chiani, Marco, Costantini, Laura, Matuz, Balazs   +7 more
core   +1 more source

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

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

Multilevel structured low-density parity-check codes [PDF]

, 2008
Low-Density Parity-Check (LDPC) codes are typically characterized by a relatively high-complexity description, since a considerable amount of memory is required in order to store their code description, which can be represented either by the connections ...
S. Chen, Chen, Sheng, Bonello, Nicholas, L. Hanzo, Hanzo, Lajos, N. Bonello   +5 more
core   +1 more source

Design of Low-Density Parity-Check Code Pair for Joint Source-Channel Coding Systems Based on Graph Theory

Entropy, 2023
In this article, a graph-theoretic method (taking advantage of constraints among sets associated with the corresponding parity-check matrices) is applied for the construction of a double low-density parity-check (D-LDPC) code (also known as LDPC code ...
Yijie Lv, Jiguang He, Weikai Xu, Lin Wang   +3 more
doaj   +1 more source

A Scalable and Resource‐Efficient Pipelined p‐Computer for Probabilistic Ising Machines

Advanced Intelligent Systems, EarlyView.
(a) Block diagram of the portfolio optimization problem: given M assets, the goal is to determine the optimal weights w that maximize the expected return (based on the mean historical assets return u), while minimizing the risk, quantified by the assets covariance matrix S.
Deborah Volpe, Eleonora Raimondo, Andrea Grimaldi, Pedram Khalili Amiri, Stefano Chiappini, Anna Giordano, Mario Carpentieri, Hyunsoo Yang, Massimo Chiappini, Giovanni Finocchio   +9 more
wiley   +1 more source

Construction of regular quasi-cyclic protograph LDPC codes based on Vandermonde matrices

, 2008
In this contribution, we investigate the attainable performance of quasi-cyclic (QC) protograph Low-Density Parity-Check (LDPC) codes for transmission over both Additive White Gaussian Noise (AWGN) and uncorrelated Rayleigh channels.
Sheng Chen, Chen, Sheng, Nicholas Bonello, Bonello, Nicholas, L. Hanzo, Hanzo, Lajos   +5 more
core   +1 more source

CLEAR Interference Cancellation in a Wideband Dual‐Channel Receiver for Independent Satellite Multi‐Connectivity Links

International Journal of Satellite Communications and Networking, Volume 44, Issue 6, Page 689-699, November/December 2026.
ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley   +1 more source

LDPC long code decoding with neural normalized min-sum based on deep learning

Dianzi Jishu Yingyong
LDPC code is a widely-used high-performance error correction code. In recent years, LDPC decoding based on deep learning and neural networks becomes a research hotspot.
Jia Di, Yan Wei, Yao Saijie, Zhang Quan, Liu Yahuan   +4 more
doaj   +1 more source