Results 31 to 40 of about 62,799 (214)
An Efficient Viterbi Decoder [PDF]
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.
K. S. Arunlal, A. Hariprasad
openaire +3 more sources
ABSTRACT Two major tasks in applications of hidden Markov models are to (i) compute distributions of summary statistics of the hidden state sequence, and (ii) decode the hidden state sequence. We describe finite Markov chain imbedding (FMCI) and hybrid decoding to solve each of these two tasks.
Zenia Elise Damgaard Bæk +3 more
wiley +1 more source
Turbo Decision Aided Receivers for Clipping Noise Mitigation in Coded OFDM
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 nonlinear
Declercq David +2 more
doaj +2 more sources
Linking the Movement Behavior of the Laptev Sea Walrus to Sea Ice and Resource Dynamics
ABSTRACT The walrus subspecies inhabiting the Laptev Sea (Odobenus rosmarus divergens) remains one of the least studied walrus taxa and occurs in a region undergoing rapid environmental change driven by climate warming and increasing human activity. We conducted the first satellite telemetry study of walruses in this region, tracking 14 individuals ...
Varvara Levitskaya +4 more
wiley +1 more source
Design of Asynchronous Viterbi Decoder for Low Power Applications [PDF]
In todays digital communication systems, convolutional codes are broadly used in channel coding techniques.The viterbi decoder due to its high performance is commonly used for decoding the convolutional codes. Fast developments in the communication field
, Surekha K. Tadse, S.L.Haridas
core +1 more source
Improved Decoding Algorithms for Convolutional Codes
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
PEMODELAN SISTEM KOMUNIKASI CAHAYA TAMPAK BERBASIS DCO-OFDM DENGAN VITERBI DECODER PADA MATLAB
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
Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions
Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni +2 more
wiley +1 more source
Using hidden Markov models (HMM) to analyze dynamic brain states from resting‐state fMRI, this study identifies opposing temporal dynamics in Parkinson's disease (PD) and progressive supranuclear palsy (PSP). PD patients show reduced fractional occupancy in unimodal networks, while PSP patients exhibit increased occupancy and prolonged duration in ...
Chenfei Ye +6 more
wiley +1 more source
Dynamic bit encoding and decoding of the magnetic recording process remain a challenge in that the process is restrained by the balance between reading and writing performance of the decoder's bit error rate (BER).
Teanchai Chantakit +2 more
doaj +1 more source

