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Serial Concatenated TCM With an Inner Accumulate Code—Part II: Density-Evolution Analysis

H.M. Tullberg, P.H. Siegel
2005 IEEE Transactions on Communications  
In a companion paper, we showed the existence of decoding thresholds for maximum-likelihood (ML) decoding of a serial concatenated trellis-coded modulation (SCTCM) system with one or more inner accumulate  ...  For an outer single paritycheck code, the lowest decoding thresholds are achieved with two inner accumulate codes.  ...  Parallel concatenated TCM (PCTCM) was studied in [4] and [5] , and serial concatenated TCM (SCTCM) was introduced in [6] .  ... 
doi:10.1109/tcomm.2004.841986 fatcat:sszule4ogfgnrmr7ykz2yjdkoy

Serial Concatenated TCM With an Inner Accumulate Code—Part I: Maximum-Likelihood Analysis

H.M. Tullberg, P.H. Siegel
2005 IEEE Transactions on Communications  
In this paper, we propose a serial concatenated trellis-coded modulation system using one or more inner rate-1 accumulate codes and a mapping to a higher order, Gray-labeled signal constellation.  ...  Computer simulations demonstrate that the proposed system, despite its use of a simple rate-1 inner code, achieves performance in additive white Gaussian noise and Rayleigh fading that is comparable to  ...  The inner code in the concatenation is a rate-1 accumulate code.  ... 
doi:10.1109/tcomm.2004.840630 fatcat:5xun2gpadnfkzdan7tz66z7ymu

Improving the Performance of Chaos-Based Modulations Via Serial Concatenation

F.J. Escribano, L. Lopez, M.A.F. Sanjuan
2010 IEEE Transactions on Circuits and Systems Part 1: Regular Papers  
He is currently an Associate Professor with the Universidad Rey Juan Carlos, where he coordinates/collaborates in several undergradate and master courses in computer science and telecommunications engineering  ...  He has been a Visiting Researcher with the Politecnico di Torino, Torino, Italy, and with the Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.  ...  Sanjuán Abstract-This paper proposes a serially concatenated system with an outer convolutional channel encoder and an inner chaosbased coded modulator.  ... 
doi:10.1109/tcsi.2009.2019408 fatcat:hkdn4wpyvzdrbf5h54egqhwzua

Design of Low-Density Parity-Check Codes for Modulation and Detection

S. ten Brink, G. Kramer, A. Ashikhmin
2004 IEEE Transactions on Communications  
A coding and modulation technique is studied where the coded bits of an irregular low-density parity-check (LDPC) code are passed directly to a modulator.  ...  For the MIMO channels, the technique operates within 1.25 dB of capacity for various antenna configurations, and thereby outperforms a scheme employing a parallel concatenated (turbo) code by wide margins  ...  We remark that this structure is similar to that of an iterative decoder for a serially concatenated 0090-6778/04$20.00 © 2004 IEEE code that is based on a mixture of inner repetition codes and a mixture  ... 
doi:10.1109/tcomm.2004.826370 fatcat:tqy6vniuunbqhezczfxvzlcyju

Near-Capacity Wireless System Design Principles

Hung Viet Nguyen, Chao Xu, Soon Xin Ng, Lajos Hanzo
2015 IEEE Communications Surveys and Tutorials  
In this tutorial, the design procedure of nearcapacity channel code design invoking non-binary EXtrinsic Information Transfer (EXIT) charts is illustrated by using design examples of Irregular Concatenated  ...  Coding Arrangements (IC-CAs) relying on Irregular Convolutional Codes (IrCCs).  ...  [8] , [28] Derived design guidelines for serially concatenated codes with the aid of the union-bound technique [8] , and also extended the turbo principle to multiple serially concatenated codes  ... 
doi:10.1109/comst.2015.2464300 fatcat:surmfvndbnfxtlufidg376uhzu

Channel Coding: The Road to Channel Capacity [article]

Daniel J. Costello Jr., G. David Forney Jr
2006 arXiv   pre-print
Starting from Shannon's celebrated 1948 channel coding theorem, we trace the evolution of channel coding from Hamming codes to capacity-approaching codes.  ...  We trace the antecedents of today's capacity-approaching codes: convolutional codes, concatenated codes, and other probabilistic coding schemes.  ...  An RA code is generated by the serial concatenation of a simple (n, 1, n) repetition code, a large pseudo-random interleaver Π, and a simple 2-state rate-1/1 convolutional "accumulator" code with input-output  ... 
arXiv:cs/0611112v1 fatcat:iwrrtx7mpfhgzfenehztfi5vyy

Channel coding: The road to channel capacity

Daniel J. Costello, G. David Forney
2007 Proceedings of the IEEE  
| Starting from Shannon's celebrated 1948 channel coding theorem, we trace the evolution of channel coding from Hamming codes to capacity-approaching codes.  ...  We trace the antecedents of today's capacity-approaching codes: convolutional codes, concatenated codes, and other probabilistic coding schemes.  ...  As originally conceived, a concatenated code involves a serial cascade of two linear block codes: an outer ðn 2 ; k 2 ; d 2 Þ nonbinary RS code over a finite field F q with q ¼ 2 k 1 elements, and an inner  ... 
doi:10.1109/jproc.2007.895188 fatcat:pftdplkbergcbpkra6ddfwjtpa

Technical advances in digital audio radio broadcasting

C. Faller, Biing-Hwang Juang, P. Kroon, Hui-Ling Lou, S.A. Ramprashad, C.-E.W. Sundberg
2002 Proceedings of the IEEE  
The result has been a unique set of evolving requirements on source coding, channel coding, and modulation technologies to make these systems a reality.  ...  In addition, competition between proposed terrestrial and satellite systems combined with increasing consumer expectations have set ambitious, and often changing, requirements for the systems.  ...  To further improve the performance, [103] also proposed using a concatenated coding scheme using an RS code as an outer code and a convolutional code (CC) as an inner code to the lowest levels of the  ... 
doi:10.1109/jproc.2002.800718 fatcat:c3qp64vgmve4xivxufcvrrvb3a

Serial concatenation of simple codes and differential modulations

Jeebak Mitra
2006
The serial concatenation of an error correcting code with a differential encoder has been found to provide very good performance for various kinds of channel conditions.  ...  Good performance of concatenated codes with practically viable decoding times is attributed to a technique known as iterative decoding.  ...  Tullberget al. emphasize the importance of free distance (d m i n ) of a code in deciding the effectiveness of serially concatenated structures with an inner accumulate code in [15] through a density evolution  ... 
doi:10.14288/1.0065422 fatcat:wyqbbdthgndp7jtxtrieymruqe

Space-Time Turbo Coded Modulation for Future Wireless Communication Systems [chapter]

Djordje Tujkovic
Turbo Code Applications  
To address the aforementioned issues, this thesis proposes parallel concatenated space-time turbo coded modulation (STTuCM).  ...  The DS interpretation, introduced with respect to an arbitrary defined effective Hamming distance (EHD) and effective product distance (EPD), is applicable to the general class of geometrically non-uniform  ...  The serially concatenated convolutional code with the recursive rate one inner code was proposed in [163] and double serially concatenated convolutional code in [164] .  ... 
doi:10.1007/1-4020-3685-x_8 fatcat:ovrdeijhjbfkpccabllexgecjm

28th Annual Computational Neuroscience Meeting: CNS*2019

2019 BMC Neuroscience  
A BQ Zum BT-328 board was used, programmed with Arduino code, with three TG9e microservomotors.  ...  A hexapod robotic platform was built using printable parts from the BQ DIWO PrintBot Crab, whose schematics are open-source.  ...  (ii) an increase of both internode number and (iii) myelin thickness.  ... 
doi:10.1186/s12868-019-0538-0 fatcat:3pt5qvsh45awzbpwhqwbzrg4su

Reconfigurable Structures for Direct Equalisation in Mobile Receivers [article]

Felip Riera-Palou
2014 arXiv   pre-print
In principle, an infinite number of filter coefficients would be needed to achieve perfect channel inversion. In practice, the number of taps must be finite.  ...  Compound, or concatenated, codes combine two or more coding schemes (component codes) such as the ones introduced in previous paragraphs.  ...  Trellis coded modulation (TCM) is a technique that achieves coding gains of 3-6 dB without any bandwidth expansion.  ... 
arXiv:1401.7216v1 fatcat:z653f7gqavgltehsby4bhtb5cu

Cyclosporine [chapter]

2008 Encyclopedia of Genetics, Genomics, Proteomics and Informatics  
CAB: ▶chlorophyll-binding protein Cabbage: ▶Brassica CaBP (calcium-binding protein): An endoplasmic reticulum chaperone protein (49 kDa) with two thioredoxin kind domains.  ...  C C: An abbreviation of cytosine.  ...  Chromatosome: A part of the nucleosome, obtained as an intermediate during digestion with micrococcal nuclease.  ... 
doi:10.1007/978-1-4020-6754-9_3993 fatcat:ngxnihgu5nf2job2jdnhsayhme

Conservative Substitution [chapter]

2008 Encyclopedia of Genetics, Genomics, Proteomics and Informatics  
CAB: ▶chlorophyll-binding protein Cabbage: ▶Brassica CaBP (calcium-binding protein): An endoplasmic reticulum chaperone protein (49 kDa) with two thioredoxin kind domains.  ...  C C: An abbreviation of cytosine.  ...  Chromatosome: A part of the nucleosome, obtained as an intermediate during digestion with micrococcal nuclease.  ... 
doi:10.1007/978-1-4020-6754-9_3543 fatcat:okeinuy5rzdwjjuzpgboymhkr4

Convolutional Codes [chapter]

Trellis and Turbo Coding  
In classic concatenation, as illustrated in Figure 1 .5, the FEC codec is broken up into an inner and an outer code.  ...  Density evolution analysis for this channel and algorithm amounts to studying the propagation of erasure probabilities.  ...  Furthermore, (12.18) can rewritten as An iterative update equation can now be constructed by equating the LLR ratio above with the soft channel input value, since both represent LLR ratios.  ... 
doi:10.1002/0471667846.ch4 fatcat:fppahkhej5dqhjrutj5gcjfvoa
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