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Design of unstructured and protograph-based LDPC coded continuous phase modulation

Tarik Benaddi, Charly Poulliat, Marie-Laure Boucheret, Benjamin Gadat, Guy Lesthievent
2014 2014 IEEE International Symposium on Information Theory  
of coded CPM systems using both unstructured and protograph-based LDPC codes ensembles.  ...  First, we present a simple yet effective approach to design unstructured LDPC codes : by inserting partial interleavers between LDPC and CPM, and allowing degree-1 and degree-2 variable nodes in a controlled  ...  CONCLUSION We introduced a general framework for the design of unstructured and protograph-based LDPC codes for CPM systems.  ... 
doi:10.1109/isit.2014.6875180 dblp:conf/isit/BenaddiPBGL14 fatcat:chptl7oywvgztp5xa2b7yneixm

Protograph-based LDPC convolutional codes for Continuous phase modulation

Tarik Benaddi, Charly Poulliat, Marie-Laure Boucheret, Benjamin Gadat, Guy Lesthievent
2015 2015 IEEE International Conference on Communications (ICC)  
In this paper, we investigate the performance of the serial concatenation of Continuous phase modulation (CPM) and LDPC convolutional codes over a memoryless additive white Gaussian noise channel.  ...  We show that coupling protographs optimized for CPM improves their performance and helps designing very good 'small' protographs.  ...  INTRODUCTION Continuous phase modulation (CPM) is a class of nonlinear phase modulation where the phase values are preserved continuous from one symbol interval to the other.  ... 
doi:10.1109/icc.2015.7249024 dblp:conf/icc/BenaddiPBGL15 fatcat:6ia3qpjhebdsdneowpu7xef43y

Continuous Transmission of Spatially Coupled LDPC Code Chains

Pablo M. Olmos, David G. M. Mitchell, Dmitri Truhachev, Daniel J. Costello
2017 IEEE Transactions on Communications  
We describe the design of CC schemes for different SC-LDPC code ensembles constructed from protographs: a (J,K)-regular SC-LDPC code chain, a spatially-coupled repeat-accumulate (SC-RA) code, and a spatially-coupled  ...  In CC transmission, instead of transmitting a sequence of independent codewords from a terminated SC-LDPC code chain, we connect multiple chains in a layered format, where encoding, transmission, and decoding  ...  Following a similar procedure, scaling laws for SC-LDPC code ensembles have been recently derived in [8] for unstructured randomly-constructed SC-LDPC code chains and in [10] for protograph-based SC-LDPC  ... 
doi:10.1109/tcomm.2017.2737018 fatcat:6ulxyrmxyvaaxlghq6bec3dtji

Construction of Regular Quasi-Cyclic Protograph LDPC Codes Based on Vandermonde Matrices

N. Bonello, Sheng Chen, L. Hanzo
2008 IEEE Transactions on Vehicular Technology  
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  ...  Our simulation results demonstrate that the advantages offered by this family of QC protograph LDPC codes accrue without any compromise in the attainable Bit Error Ratio (BER) and Block Error Ratio (BER  ...  In this paper, we will pursue a more holistic LDPC code design approach, and thus search for good LDPC codes, which strike an attractive tradeoff between the range of contradictory design factors.  ... 
doi:10.1109/tvt.2007.913180 fatcat:z74jug26lvbhvb3v45k6rz6uwe

Construction of Regular Quasi-Cyclic Protograph LDPC codes based on Vandermonde Matrices

Nicholas Bonello, Sheng Chen, L. Hanzo
2008 2008 IEEE 68th Vehicular Technology Conference  
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  ...  Our simulation results demonstrate that the advantages offered by this family of QC protograph LDPC codes accrue without any compromise in the attainable Bit Error Ratio (BER) and Block Error Ratio (BER  ...  In this paper, we will pursue a more holistic LDPC code design approach, and thus search for good LDPC codes, which strike an attractive tradeoff between the range of contradictory design factors.  ... 
doi:10.1109/vetecf.2008.158 dblp:conf/vtc/BonelloCH08 fatcat:ylsdbr7m2rgehob5rstozva2mm

A Survey on Protograph LDPC Codes and Their Applications

Yi Fang, Guoan Bi, Yong Liang Guan, Francis C. M. Lau
2015 IEEE Communications Surveys and Tutorials  
Moreover, the applications of protograph LDPC codes to joint sourceand-channel coding (JSCC) and joint channel-and-physical-layernetwork coding (JCPNC) are reviewed and studied.  ...  This paper provides a comprehensive survey on the state-of-the-art in protograph LDPC code design and analysis for different channel conditions, including the additive white Gaussian noise (AWGN) channels  ...  We consider an AWGN channel with binary-phase-shiftkeying (BPSK) modulation 2 .  ... 
doi:10.1109/comst.2015.2436705 fatcat:fdq7i74t2vc4rdgmjamhpydokq

Protograph-based Bit-Interleaved Coded Modulation: A Promising Bandwidth-Efficient Design Paradigm [article]

Yi Fang, Pingping Chen, Yong Liang Guan, Francis C. M. Lau, Yonghui Li, Guanrong Chen
2021 arXiv   pre-print
Due to the tremendous error-correction capability and simple structures, protograph low-density parity-check (PLDPC) codes and their spatially-coupled (SC) variants have emerged to be a pragmatic and promising  ...  Of particular interest is code construction, constellation shaping, as well as bit-mapper design, where the receiver is formulated as a serially-concatenated decoding framework consisting of a soft-decision  ...  [188] Introduced a general design framework for PLDPC-coded BICM with continuous phase modulation (CPM). Mitchell et al.  ... 
arXiv:2112.08557v1 fatcat:szkgba5muvedvbtbrcnfndcrom

The Development of Turbo and LDPC Codes for Deep-Space Applications

Kenneth S. Andrews, Dariush Divsalar, Sam Dolinar, Jon Hamkins, Christopher R. Jones, Fabrizio Pollara
2007 Proceedings of the IEEE  
JPL's LDPC codes are built from protographs and circulants, selected by analyses of decoding thresholds and methods to avoid loops in the code graph.  ...  This paper describes the research, design, implementation, and standardization work that has taken place at JPL for both turbo and low-density parity-check (LDPC) codes.  ...  A key insight enabled a structured analysis and design of LDPC codes based on protographs [27] , and eventually JPL's high-speed decoders.  ... 
doi:10.1109/jproc.2007.905132 fatcat:qmmfxlxarnenhnz3ic2ph5luxu

Multilevel Structured Low-Density Parity-Check Codes

N. Bonello, S. Chen, L. Hanzo
2008 2008 IEEE International Conference on Communications  
We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial, rather than a random structure, which are termed as multilevel structured (MLS) LDPC codes.  ...  Ratio (BER) and and Block Error Ratio (BLER) performance, when compared to their previously proposed more complex random-construction based counterparts as well as to other structured codes of the same  ...  The structure of this paper is as follows. Sections II and III introduce the preliminaries of LDPC codes and the basic principles of protograph LDPC codes.  ... 
doi:10.1109/icc.2008.96 dblp:conf/icc/BonelloCH08 fatcat:6t3x3sgecfhgfjmybyktsewpia

Multilevel-Structured Low-Density Parity-Check Codes for AWGN and Rayleigh Channels

Nicholas Bonello, Sheng Chen, Lajos Hanzo
2010 IEEE Transactions on Vehicular Technology  
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.  ...  Index Terms-Low-complexity low-density parity check (LDPC), multilevel structured (MLS), protograph LDPC codes, quasi-cyclic (QC). 1 Although they almost have the same nomenclature, MLS LDPC codes bear  ...  The structure of this paper is described as follows. Sections II and III introduce the preliminaries of LDPC codes and the basic principles of protograph LDPC codes.  ... 
doi:10.1109/tvt.2010.2050708 fatcat:dwc6jmjbgvgatfqzshmfxzt7gu

Spatially coupled turbo-coded continuous phase modulation: asymptotic analysis and optimization

Tarik Benaddi, Charly Poulliat
2020 EURASIP Journal on Wireless Communications and Networking  
In this work, we consider a serially concatenated scheme which is the serial concatenation of a simple outer convolutional code and a continuous phase modulator (CPM) separated by an interleaver.  ...  Then, based on an asymptotic analysis, we show that the proposed scheme has very competitive thresholds when compared to carefully designed spatially coupled LDPC codes.  ...  Later, structured LDPC codes were considered such as irregular repeat accumulate (IRA) codes [24] [25] [26] and protograph-based LDPC codes [27, 28] .  ... 
doi:10.1186/s13638-020-01773-7 fatcat:yntftmzncvbornilpulhls7fty

Quasi-Cyclic LDPC Codes based on Pre-Lifted Protographs [article]

David G. M. Mitchell, Roxana Smarandache, Daniel J. Costello Jr
2014 arXiv   pre-print
Quasi-cyclic low-density parity-check (QC-LDPC) codes based on protographs are of great interest to code designers because analysis and implementation are facilitated by the protograph structure and the  ...  In this paper, we consider an approach to constructing QC-LDPC codes that uses a two-step lifting procedure based on a protograph, and, by following this method instead of the usual one-step procedure,  ...  distance of QC-LDPC protograph-based codes.  ... 
arXiv:1407.5364v1 fatcat:5zkpsdwvcfberowlsecl6dzr5u

Low-Density Parity-Check Codes and Their Rateless Relatives

Nicholas Bonello, Sheng Chen, Lajos Hanzo
2011 IEEE Communications Surveys and Tutorials  
This survey guides the reader through the extensive open literature that is covering the family of low-density paritycheck (LDPC) codes and their rateless relatives.  ...  In doing so, we will identify the most important milestones that have occurred since their conception until the current era and elucidate the related design problems and their respective solutions.  ...  in the resultant protograph LDPC code.  ... 
doi:10.1109/surv.2011.040410.00042 fatcat:l6hrbfv3zvf6tpe37h7lhpeuoi

Design of systematic GIRA codes for CPM

Tarik Benaddi, Charly Poulliat, Marie-Laure Boucheret, Benjamin Gadat, Guy Lesthievent
2014 2014 8th International Symposium on Turbo Codes and Iterative Information Processing (ISTC)  
serially concatenated turbo schemes that works for both systematic generalized irregular repeat accumulate (GIRA) and low density generator matrix (LDGM) codes concatenated with a continuous phase modulation  ...  The proposed design is based on a semi-analytic EXIT chart optimization method.  ...  This was motivated by the fact that CPM acts as a phase accumulator. Recently, [9] has investigated the design of both unstructured LDPC and protograph codes.  ... 
doi:10.1109/istc.2014.6955075 dblp:conf/istc/BenaddiPBGL14 fatcat:zjik5kafp5cebidgct6flahzeu

Optimized Design for NB-LDPC-Coded High-Order CPM: Power and Iterative Efficiencies

Rui Xue, Tong Wang, Yanbo Sun, Huaiyu Tang
2020 Symmetry  
In this paper, a non-binary low-density parity-check (NB-LDPC) coded high-order continuous phase modulation (CPM) system is designed and optimized to improve power and iterative efficiencies.  ...  Secondly, a three-step method based on extrinsic information transfer (EXIT) and entropy theory is used to design NB-LDPC codes, which reduces the convergence threshold approximately 0.42 and 0.58 dB compared  ...  Benaddi, T. derives an asymptotic analysis and optimization of coded CPM systems using both unstructured and protograph-based LDPC codes ensembles [24] .  ... 
doi:10.3390/sym12081353 fatcat:ejubnmmgyrfipbvlws7ng3csu4
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