Results 21 to 30 of about 409 (184)

Turbo Decision Aided Receivers for Clipping Noise Mitigation in Coded OFDM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
Orthogonal frequency division multiplexing (OFDM) is the modulation technique used in most of the high-rate communication standards. However, OFDM signals exhibit high peak average to power ratio (PAPR) that makes them particularly sensitive to
Maxime Colas   +2 more
doaj   +2 more sources

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  

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

Interleaved Convolutional Code and Its Viterbi Decoder Architecture

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
We propose an area-efficient high-speed interleaved Viterbi decoder architecture, which is based on the state-parallel architecture with register exchange path memory structure, for interleaved convolutional code. The state-parallel architecture uses as
Kong Jun Jin, Parhi Keshab K
doaj   +1 more source

Performance Analysis of Turbo Codes

open access: yesCommunications, 2013
The article focuses on the performance analyses of Turbo Codes. These codes belong to the group of error correction codes. By their use, it is possible to achieve high system performance.
Jakub Sedy   +3 more
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

PEMODELAN SISTEM KOMUNIKASI CAHAYA TAMPAK BERBASIS DCO-OFDM DENGAN VITERBI DECODER PADA MATLAB

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2019
Penggunaan sistem komunikasi cahaya tampak sebagai metode komunikasi alternatif selain RF didorong oleh beberapa faktor, salah satunya adalah penghematan energi karena sistem ini menggunakan satu devais yang sama untuk pencahayaan ruangan sekaligus ...
Angga Pratama Putra   +2 more
doaj   +1 more source

Chromosome‐Level Genome and Organ‐Specific Transcriptome of Alnus glutinosa Uncover Lineage‐Specific Innovations in Root Nodule Symbiosis

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Alnus glutinosa is one of only three lineages within the order Fagales capable of establishing root nodule symbiosis (RNS). Although a fragmented genome assembly of A. glutinosa was previously available, its limited quality, combined with the lack of comprehensive transcriptomic resources, has constrained in‐depth comparative and functional ...
Zijian Liu   +11 more
wiley   +1 more source

A parallel Viterbi decoding algorithm

open access: yesConcurrency and Computation: Practice and Experience, 2001
AbstractIn this paper we express the Viterbi algorithm as a matrix–vector reduction in which multiplication is replaced by addition and addition by minimization. The resulting algorithm is then readily parallelized in a form suitable for implementation on a systolic processor array.
openaire   +3 more sources

Detecting disease progression from animal movement using hidden Markov models

open access: yesJournal of Applied Ecology, Volume 63, Issue 3, March 2026.
We demonstrate how (H)HMMs can be tailored to different epidemiological scenarios and provide a template workflow for developing and selecting Hidden Markov models to infer disease status from animal movement data. Identifying infection before mortality occurs offers a valuable early‐warning tool for population managers, reduces reliance on difficult ...
Dongmin Kim   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy