Results 61 to 70 of about 11,054,897 (265)
Low Density Parity Check Code (LDPC Codes) Overview
CoRR, 2020 This paper basically expresses the core fundamentals and brief overview of the research of R. G. GALLAGER [1] on Low-Density Parity-Check (LDPC) codes and various parameters related to LDPC codes like, encoding and decoding of LDPC codes, code rate, parity check matrix, tanner graph.
Saumya Borwankar, Dhruv Shah
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Array Convolutional Low-Density Parity-Check Codes [PDF]
IEEE Communications Letters, 2014 This paper presents a design technique for obtaining regular time-invariant low-density parity-check convolutional (RTI-LDPCC) codes with low complexity and good performance. We start from previous approaches which unwrap a low-density parity-check (LDPC) block code into an RTI-LDPCC code, and we obtain a new method to design RTI-LDPCC codes with ...
Marco Baldi +2 more
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British Educational Research Journal, EarlyView.Abstract This paper presents an exploratory analysis of contemporary curricular and professional qualification policies in the Scottish education system, focusing on minimum qualification thresholds for mathematics teaching. The study examines how veteran secondary mathematics practitioners perceive the structural and pedagogical implications of using ...
Paul Argyle McDonald
wiley +1 more source
Reordered static layered schedule for 5G low‐density parity‐check codes
Electronics LettersThe error performance of the 5G low‐density parity‐check codes is significantly impacted by the update order of layers. At present, the row degree (RD) and the number of punctured bits (PBs) are widely used to decide the update order of layers. Here, the
Yangcan Zhou, Zhongfeng Wang
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Entanglement-assisted Quasi-cyclic Quantum Low-density Parity-check Codes over Qubits [PDF]
QuantumWe construct several families of entanglement-assisted quasi-cyclic quantum LDPC (EA-QC-QLDPC) codes via structured tilings of permutation matrices. The entanglement-unassisted portion of the joint Tanner graph of the proposed EA-QC-QLDPC code derived ...
Pavan Kumar +3 more
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Biotechnology and Bioengineering, EarlyView.ABSTRACT A method to select Escherichia coli citrate synthase variants having reduced activity was developed based initially on the increased generation of acid, observed visually by prolonged color change in the pH indicator bromocresol purple. Five hundred fifty‐two potential variants were isolated and each were cultured on glucose as sole carbon ...
Jeffrey K. Dodelin +3 more
wiley +1 more source
From Product Codes to Structured Generalized LDPC Codes [PDF]
, 2010 Product codes, due to their relatively large minimum distance, are often seen as a natural solution for applications requiring low error floors.
Paolini, Enrico +10 more
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Does Climate Risk Affect Employment Decisions? International Evidence
Business Strategy and the Environment, EarlyView.ABSTRACT This study investigates the effect of climate risk on corporate employment decisions. Using a large sample from 41 countries, we find a positive association between climate risk and underinvestment in labor, notably manifesting as excessive employee layoffs.
Claude Francoeur +3 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 +5 more
core +1 more source
Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels
, 2010 We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial rather than a random structure, which are termed multilevel-structured (MLS) LDPC codes. It is demonstrated that they posses a strikingly simple structure
Chen, Sheng +2 more
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