Results 41 to 50 of about 13,970 (185)
New Codes on Graphs Constructed by Connecting Spatially Coupled Chains
, 2012 A novel code construction based on spatially coupled low-density parity-check (SC-LDPC) codes is presented. The proposed code ensembles are described by protographs, comprised of several protograph-based chains characterizing individual SC-LDPC codes. We
Costello Jr, Daniel J. +3 more
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Journal of Marine Science and Engineering, 2023 Underwater acoustic (UWA) communications face many challenges, such as large multipath delay, severe fading and the time-varying distortions. Chaotic modulations have shown advantages in UWA communications, but the reliability of current chaotic ...
Zhiping Xu +6 more
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Nonbinary Hybrid LDPC Codes [PDF]
IEEE Transactions on Information Theory, 2010 In this paper, a new class of low-density parity-check (LDPC) codes, named hybrid LDPC codes, is introduced. Hybrid LDPC codes are characterized by an irregular connectivity profile and heterogeneous orders of the symbols in the codeword. It is shown in particular that the class of hybrid LDPC codes can be asymptotically characterized and optimized ...
Sassatelli, Lucile, Declercq, David
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Design of LDPC Codes for Two-Way Relay Systems with Physical-Layer Network Coding [PDF]
, 2013 Cataloged from PDF version of article.This letter presents low-density parity-check (LDPC) code design for two-way relay (TWR) systems employing physical-layer network coding (PLNC).
Duman, T. M. +2 more
core +1 more source
Multilevel LDPC Codes Design for Multimedia Communication CDMA System
EURASIP Journal on Wireless Communications and Networking, 2004 We design multilevel coding (MLC) with a semi-bit interleaved coded modulation (BICM) scheme based on low density parity check (LDPC) codes. Different from the traditional designs, we joined the MLC and BICM together by using the Gray mapping, which is ...
Hou Jia, Yi Yu, Lee Moon Ho
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Research on unequal error protection of irregular LDPC codes
Tongxin xuebao, 2005 An irregular low-density parity-check （LDPC） code with unequal error protection （UEP） property was proposed. A weight-increasing parity-check （WIPC） matrix was constructed.
MA Pi-ming, YUAN Dong-feng, YANG Xiu-mei
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A Fast Convergence Density Evolution Algorithm for Optimal Rate LDPC Codes in BEC
, 2014 We derive a new fast convergent Density Evolution algorithm for finding optimal rate Low-Density Parity-Check (LDPC) codes used over the binary erasure channel (BEC).
Tavakoli, Hassan
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PLoS ONE, 2022 Most synchronization error correction codes deal with random independent insertion and deletion errors without correlation. In this paper, we propose a probabilistic channel model with correlated insertion and deletion (CID) errors to capture the data ...
Tianbo Xue
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Split-extended LDPC codes for coded cooperation [PDF]
2010 International Symposium On Information Theory & Its Applications, 2010 We propose a new code design that aims to distribute an LDPC code over a relay channel. It is based on a split-and-extend approach, which allows the relay to split the set of bits connected to some parity-check of the LDPC code into two or several subsets. Subsequently, the sums of bits within each subset are used in a repeat-accumulate manner in order
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3D EXIT Charts for Analyzing the 5G 3GPP New Radio LDPC Decoder
IEEE Access, 2020 Low Density Parity Check (LDPC) codes have been selected to provide channel coding for data in the next generation of wireless communication standard referred to in practice as the 3GPP New Radio (NR).
Shuai Shao +3 more
doaj +1 more source