Results 21 to 30 of about 328,523 (223)

Truncation effects in Viterbi decoding [PDF]

open access: yesIEEE Military Communications Conference, 'Bridging the Gap. Interoperability, Survivability, Security', 2003
Practical Viterbi decoders often fall significantly short of full maximum likelihood decoding performance because of survivor truncation effects. In the present work the authors study the tradeoff between truncation length and performance loss for the two most common variations of Viterbi's algorithm: best-state decoding (BSD) and fixed-state decoding (
McEliece, Robert J., Onyszchuk, Ivan M.
openaire   +2 more sources

An Efficient Viterbi Decoder [PDF]

open access: yesInternational Journal of Computer Science, Engineering and Applications, 2012
Convolutional encoding with Viterbi decoding is a good forward error correction technique suitable for channels affected by noise degradation. Fangled Viterbi decoders are variants of Viterbi decoder (VD) which decodes quicker and takes less memory with no error detection capability.
openaire   +1 more source

A new decoding algorithm for hidden Markov models improves the prediction of the topology of all-beta membrane proteins

open access: yesBMC Bioinformatics, 2005
Background Structure prediction of membrane proteins is still a challenging computational problem. Hidden Markov models (HMM) have been successfully applied to the problem of predicting membrane protein topology.
Martelli Pier   +2 more
doaj   +1 more source

Adaptive decoding of convolutional codes [PDF]

open access: yesAdvances in Radio Science, 2007
Convolutional codes, which are frequently used as error correction codes in digital transmission systems, are generally decoded using the Viterbi Decoder. On the one hand the Viterbi Decoder is an optimum maximum likelihood decoder, i.e.
K. Hueske, J. Geldmacher, J. Götze
doaj  

VLSI Architecture for Configurable and Low-Complexity Design of Hard-Decision Viterbi Decoding Algorithm

open access: yesJournal of ICT Research and Applications, 2016
Convolutional encoding and data decoding are fundamental processes in convolutional error correction. One of the most popular error correction methods in decoding is the Viterbi algorithm.
Rachmad Vidya Wicaksana Putra   +1 more
doaj   +1 more source

Improved Decoding Algorithms for Convolutional Codes

open access: yesКібернетика та комп'ютерні технології
Introduction. The considered implementation of the Viterbi algorithm provides a reduction in hardware and time costs for decoding convoluted code sequences, and can be used for semi-realistic modeling of existing means of data transmission (for example ...
Kateryna Sosnenko
doaj   +1 more source

A reconfigurable Viterbi decoder architecture [PDF]

open access: yesConference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256), 2001
We present the design and implementation of a novel reconfigurable Viterbi decoder which provides dynamic adaptation to different constraint length and code rate convolutional codes. A decoder that supports constraint lengths from 3-7, and code rates 1/2-1/3 has been synthesized on an FPGA. With a throughput of 20 Mbps, the proposed decoder is suitable
K. Chadha, J.R. Cavallaro
openaire   +1 more source

An Over-the-Air Multi-User Convolutional Code for URLLC

open access: yesIEEE Open Journal of the Communications Society
URLLC applications impose stringent latency and reliability requirements, making its compliance challenging due to the inherent trade-off between them. These applications typically involve the exchange of small information blocks. Convolutional codes (CC)
Rafael Santos   +3 more
doaj   +1 more source

Evaluasi Kompleksitas Pendekodean MAP pada Kode BCH Berdasarkan Trellis Terbagi

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017
Soft decoding of block codes can be done by representing the block code into the trellis. One method of soft decoding commonly used is the maximum a posteriori probability (MAP).
Emir Husni, Dimas Pamungkas
doaj   +1 more source

Decoding Schemes for FBMC with Single-Delay STTC

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
Orthogonally multiplexed Quadrature Amplitude Modulation (OQAM) with Filter-Bank-based MultiCarrier modulation (FBMC) is a multicarrier modulation scheme that can be considered an alternative to the conventional orthogonal frequency division multiplexing
Chrislin Lélé   +1 more
doaj   +2 more sources

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