[PDF] Top 20 Asymptotic weight analysis of low-density parity check (LDPC) code ensembles
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Asymptotic weight analysis of low-density parity check (LDPC) code ensembles
... mathematical analysis. The mathematical analysis could not be used for the rate 1/2 codes because with relevant interarrival times and buffers of size four or five, the iteration cap imposed by the method ... See full document
133
Parity check matrix and construction methods of Low Density Parity Check code
... _____________________________________________________________________________________________________ © 2014, IJIRIS- All Rights Reserved Page -31 Figure 3 A (20, 3, 4) LDPC parity check matrix. This matrix ... See full document
7
Analysis of High Efficiency Low Density Parity-Check Code Encryption
... a low power, high efficient Low Density Parity-Check Code (LDPC) Decoder Architecture for error detection and correction ... See full document
5
ANALYSIS AND REVIEW OF EFFICIENT DECODING ALGORITHMS FOR LOW DENSITY PARITY CHECK(LDPC) CODE
... [1]. LOW-DENSITY parity-check (LDPC) codes were invented by Robert Gallager but had been ignored for years until Mackay rediscovered them ...[9]. Low-density ... See full document
6
Analysis of low-density parity-check codes on impulsive noise channels
... apply density evolu- tion of LDPC codes for different combining techniques on these channels and an estimation of the waterfall performance of LDPC codes is derived that reduces the gap between simulated and ... See full document
133
Novel Code-Construction for (3, k) Regular Low Density Parity Check Codes
... dual-diagonal parity part with single weight-3 column stated in [45,46]. Parity check matrix using dual-diagonal parity part, also known as semi-random parity check ... See full document
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Low-Density Parity-Check Codes and their Rateless Relatives
... a code can correct up to b(d min − 1) /2c errors, where bxc denotes the floor function that rounds x that is less than or equal to ...LDPC code and demonstrated that this increases with both the PCM column ... See full document
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Low-Density Parity-Check Code Decoder Design and Error Characterization on an FPGA Based Framework
... LDPC code on a general purpose pro- cessor based single node requires extremely long simulation times, scaling to months and even years ...conduct analysis such as error pattern, trapping set, and absorbing ... See full document
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Finite-Length Analysis of Low-Density Parity-Check Codes on the Binary Erasure Channel
... “erasures”) of a randomly chosen element from the ensemble l r contains a nonempty stopping set. We show in Theorem 2.1 that this can be done exactly. In Section III, we consider the maximum likelihood (ML) performance ... See full document
10
Structural Design and Analysis of Low-Density Parity-Check Codes and Systematic Repeat-Accumulate Codes
... error-correcting code families, known as turbo codes and low-density parity-check (LDPC) codes, has led to a revolution in coding theory and to a paradigm shift from traditional ... See full document
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A Study of Low Density Parity-Check Codes Using Systematic Repeat-Accumulate Codes
... RA code is completely specified by code length N, row weight a, column weight q and its interleaver pattern ...RA code, we would need to focus on the interleaver design, which ... See full document
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Half Rate Quasi Cyclic Low Density Parity Check Codes Based on Combinatorial Designs
... The figure also gives the block error rate (BLKER) performance of the constructed QC-LDPC codes. In general, no error floor is observed for BLKER ≥ 10 − 5 . 5. Conclusions and Future Work The paper presented new schemes ... See full document
12
Symbol Message Passing Decoding of Nonbinary Spatially-Coupled Low-Density Parity-Check Codes
... coupled low-density parity-check (LDPC) ...The analysis is performed via density evolution over the q-ary symmetric channel, with q being the field order used for the code ... See full document
6
CONSTRUCTION OF REGULAR QUASI CYCLIC-LOW DENSITY PARITY CHECK CODES FROM CYCLIC CODES
... of weight not more than 1 in each row or column, then, there is no two rows (or two columns) in the same matrix or different blocks of circulant matrices having more than one value in ...lower density, ... See full document
8
Implementation of Low Density Parity Check Code Decoder on FPGA
... given code, so these decoders works well than the BP in the error floor ...are check node unit and variable node ...the check node unit.In this way the messages passed on check to variable ... See full document
5
Modified belief propagation decoders for quantum low density parity check codes
... have low distances and are therefore not appropriate for comparing ...our code we have constructed H ˜ X from four 100 × 100 circu- lant matrices of weight ...bicycle code considered in ... See full document
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On the use of ordered statistics decoders for low density parity check codes in space telecommand links
... the analysis, we investigate the tradeoff between performance and complexity with and without the ordered TEP ...ing weight,” that is from the smallest weight to the highest ... See full document
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An FPGA Implementation of Regular Low Density Parity Check Code Decoder
... Figure 7: Five-stage pipelining of the check node processing datapath. shuffle networks by two distinct sets of wires with opposite directions, which means that the hybrid data from PE blocks to CNUs and the ... See full document
13
Mixed Precision Multi-frame Parallel Low-Density Parity-Check Code Decoder
... the results in variable nodes, or until reaching the maximum number of iterations set by decoder designer then the decoder gives up and returns an error code. 2.2.2 Sum-Product Algorithm In contrast with ... See full document
53
Performance evaluation of low-density parity-check codes
... the code can not be safely implemented without causing ambiguity in determining the original ...block code is said to be linear if and only if the resultant modulo-2 sum of any two codewords exists in the ... See full document
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