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Multi core implementation of a trellis based syndrome decoder with adaptive complexity

Klaus Hueske, Jan Geldmacher, Jurgen Gotze
2010 2010 7th International Symposium on Wireless Communication Systems  
This paper investigates the implementation of a trellis based syndrome decoder on symmetric multiprocessor (SMP) platforms.  ...  Second, it offers an adaptive complexity, i.e. the number of decoding operations decreases with improving transmission conditions.  ...  Basic Principles The adaptive complexity decoder is based on Schalkwijk's syndrome decoder presented in [5] .  ... 
doi:10.1109/iswcs.2010.5624395 dblp:conf/iswcs/HueskeGG10 fatcat:p4h6q5tuyzhwjeyqujtzvn2ffa

Adaptive low complexity MAP decoding for turbo equalization

Jan Geldmacher, Klaus Hueske, Juergen Goetze, Sascha Bialas
2010 2010 6th International Symposium on Turbo Codes & Iterative Information Processing  
In this paper a syndrome based MAP decoder is proposed, that is capable of reducing the computational decoding effort during the iteration process without significantly influencing the convergence behavior  ...  It is based on the exchange of reliability information between the equalizer and the decoder, which is typically some sort of maximum a posteriori (MAP) decoder.  ...  Besides reduction of decoding effort, the proposed concept can also be used to improve the speedup of a parallel MAP decoder implemented on a multi-core platform: Identification of error-free blocks is  ... 
doi:10.1109/istc.2010.5613804 fatcat:essowlyvqvedxmim6lyuqy3t6i

Equalization and FEC techniques for optical transceivers

K. Azadet, E.F. Haratsch, H. Kim, F. Saibi, J.H. Saunders, M. Shaffer, L. Song, Meng-Lin Yu
2002 IEEE Journal of Solid-State Circuits  
special emphasis on VLSI implementation.  ...  In this tutorial paper, we present the application of well-known DSP techniques used in lower speed wireline and wireless applications, to high-speed optical communications.  ...  Woodward of Lucent Technologies for providing them with lab data of multimode fiber impulse responses and measured output waveforms, Z. Yu for help with MMF equalization simulations, and A.  ... 
doi:10.1109/4.987083 fatcat:xnispmebmfcvrpzrteiig7vjnm

Adaptive Audio Steganography Based on Improved Syndrome-Trellis Codes

Kaiyu Ying, Rangding Wang, Li Dong, Diqun Yan
2021 IEEE Access  
Syndrome-Trellis Code (STC) is a near-optimal convolutional method for adaptive steganography.  ...  The generation of the adaptive parity-check matrix can be formulated as a multi-constrained integer programming problem in which the width of the submatrix is allocated at a fixed height.  ...  [11] proposed Syndrome-Trellis Codes (STCs) based on the convolution coding and Viterbi decoding algorithm. Li et al.  ... 
doi:10.1109/access.2021.3050004 fatcat:eughrwcxfjbxdhpvrxgghuu4v4

A common operator for FFT and FEC decoding

Malek Naoues, Dominique Noguet, Laurent Alaus, Yves Louët
2011 Microprocessors and microsystems  
A key benefit of exhibiting common operators is the regular architecture it brings when implemented in a Common Operator Bank (COB).  ...  This paper capitalizes on the Common Operator technique to present new common structures for the FFT and FEC decoding algorithms.  ...  It was shown that with this CO it is possible to build a more general library framework for FFT/FEC functions that permits.  ... 
doi:10.1016/j.micpro.2011.08.007 fatcat:e42g24ejjrfwrmv5panj2gtpse

Distributed Source Coding for Real-Time ECG Signal Monitoring

Hung-Tsai WU, Wei-Ying TSAI, Wen-Whei CHANG
2014 IEICE transactions on information and systems  
This study presents a novel means of exploiting the distributed source coding (DSC) in low-complexity compression of ECG signals.  ...  Also proposed is a modified BCJR algorithm which performs symbol decoding of binary convolutional codes to better exploit the source's a priori information.  ...  The low-complexity ECG encoding algorithm is implemented on the WinFast PXA310 development board, which is connected to a Bluetooth adapter for communication with the BtECG sensor.  ... 
doi:10.1587/transinf.e97.d.2157 fatcat:fmpnil2n6bhhdojbzzczop4hou

Minimizing Additive Distortion in Steganography Using Syndrome-Trellis Codes

T. Filler, J. Judas, J. Fridrich
2011 IEEE Transactions on Information Forensics and Security  
The binary case is approached using a novel syndromecoding scheme based on dual convolutional codes equipped with the Viterbi algorithm.  ...  This fast and very versatile solution achieves state-of-the-art results in steganographic applications while having linear time and space complexity w.r.t. the number of cover elements.  ...  C++ implementation with Matlab wrappers of STCs and multi-layered STCs are available at http://dde.binghamton.edu/ download/syndrome/.  ... 
doi:10.1109/tifs.2011.2134094 fatcat:tp7ub3cdg5gqhngfqa3vpihgky

Opportunities and Challenges for Error Control Schemes for Wireless Sensor Networks: A Review

Rajan Kadel, Krishna Paudel, Deepani B. Guruge, Sharly J. Halder
2020 Electronics  
Based on our review work, we found that there are limited works on ECS design on a realistic network model i.e., a modified multi-hop WSN model.  ...  We present a review on proposed ECS for WSN based on three criteria: Forward Error Correction (FEC), adaptive error correction techniques, and other techniques.  ...  In [93] , Singh and Pesch introduce the use of a soft-decision decoder called adaptive chase-2 decoding for a BCH code in multi-hop networks.  ... 
doi:10.3390/electronics9030504 fatcat:6cc4psoimjccxgnl7m6vtlkcsq

A 640-Mb/s 2048-Bit Programmable LDPC Decoder Chip

M.M. Mansour, N.R. Shanbhag, M.M. Mansour, N.R. Shanbhag
2006 IEEE Journal of Solid-State Circuits  
It employs a reduced complexity message computation mechanism free of lookup tables, and features a programmable network for message interleaving based on the code structure.  ...  The chip implements the turbo-decoding message-passing (TDMP) algorithm for architecture-aware (AA-)LDPC codes which has a faster convergence rate and hence a throughput advantage over the standard decoding  ...  Seok-Jun Lee for his assistance during the testing phase of the chip, and Dr. Makram M. Mansour for his support in building the parameterized leafcell layout library.  ... 
doi:10.1109/jssc.2005.864133 fatcat:osrslsl5zbeijmf24stbuibahm

Wyner-Ziv video coding for wireless lightweight multimedia applications

Nikos Deligiannis, Frederik Verbist, Athanassios C Iossifides, Jürgen Slowack, Rik Van de Walle, Peter Schelkens, Adrian Munteanu
2012 EURASIP Journal on Wireless Communications and Networking  
The low complexity encoding characteristics, the ability of the novel motion-compensated multi-hypothesis prediction technique to adapt to regional degrees of temporal correlation (which is of crucial  ...  In this regard, the design of efficient video coding systems, meeting such key requirements as low power, mobility and low complexity, is a challenging problem.  ...  Daniel Urbain, head of the Gastroenterology clinic of the Universitair Ziekenhuis Brussel for providing numerous endoscopic video sequences.  ... 
doi:10.1186/1687-1499-2012-106 fatcat:kfpsmeoid5hhjgix35asc7qvze

Design, Validation and Correlation of Characterized SODIMM Modules Supporting DDR3 Memory Interface

Vemula Harini
2013 IOSR Journal of Electronics and Communication Engineering  
DDR3-SODIMM module is a key component in the memory interface and is becoming increasingly important in enabling higher speeds.  ...  In any computing environment, it is necessary for the processor to have fast accessible RAM that allows temporary storage of data.  ...  It may have much lower decoding complexity than that of a BCH code with the considerable decoder code rate.  ... 
doi:10.9790/2834-0650111 fatcat:5forrex6lbdxhc7rnkzevdrawy

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

Tarik Benaddi, Charly Poulliat
2020 EURASIP Journal on Wireless Communications and Networking  
In particular, the proposed procedure aims to ensure the continuity of the transmitted signal among spatially coupled replicas, enabling to keep one of the core characteristics and advantages of coded  ...  For serially or parallel concatenated communication systems, spatial coupling techniques enable to improve the threshold of these systems under iterative decoding using belief propagation (BP).  ...  the MAP decoder is more complex because of the higher number of explored trellis paths.  ... 
doi:10.1186/s13638-020-01773-7 fatcat:yntftmzncvbornilpulhls7fty

Development of a Reed-Solomon Error Detection and Correction System

Aaron Don M. Africa
2020 International Journal of Emerging Trends in Engineering Research  
Its unique algorithm may be used in any analog or digital communication system because of it having the highest efficient use of redundancy, ability to adjust block length has a wide range of code rate  ...  RS codes are codes in which adding unnecessary bits to a data in order for it to be reliably recovered even though the presence of errors in transferal, cache, and retrieval, is executed.  ...  It consists of a couple of states -a trellis code state and a Cyclic Redundancy Check state. These states are what characterize the trellis of that Viterbi algorithm.  ... 
doi:10.30534/ijeter/2020/10822020 fatcat:4mth2enivzhmpmmlstakcs4iqq

Iteration Bound Analysis and Throughput Optimum Architecture of SHA-256 (384,512) for Hardware Implementations [chapter]

Yong Ki Lee, Herwin Chan, Ingrid Verbauwhede
2007 Lecture Notes in Computer Science  
In the base architecture, the algorithms are implemented on the 32-bit PowerPC 405 processor core running a 300MHz.  ...  Thus, while dramatically decreasing the decoding complexity, only 30% of the channel sum-rate would be lost with the use of capacity achieving codes.  ... 
doi:10.1007/978-3-540-77535-5_8 fatcat:nv436nlyf5dkzmxxuna66r33lq

Design of large polyphase filters in the Quadratic Residue Number System

Gian Carlo Cardarilli, Alberto Nannarelli, Yann Oster, Massimo Petricca, Marco Re
2010 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers  
MA8b1-12 Syndrome Based Adaptive Complexity Channel Decoding and Turbo Equalization for ATSC DTV Klaus Hueske, Jan Geldmacher, Jürgen Götze, TU Dortmund University Syndrome decoding of trellis based codes  ...  The complexity analysis of both encoder and decoder is concluded with a proposed hardware implementation.  ... 
doi:10.1109/acssc.2010.5757589 fatcat:ccxnu5owr5fyrcjcqukumerueq
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