Results 61 to 70 of about 328,523 (223)

A Novel Entropy-Based Decoding Algorithm for a Generalized High-Order Discrete Hidden Markov Model

open access: yesJournal of Probability and Statistics, 2018
The optimal state sequence of a generalized High-Order Hidden Markov Model (HHMM) is tracked from a given observational sequence using the classical Viterbi algorithm. This classical algorithm is based on maximum likelihood criterion.
Jason Chin-Tiong Chan, Hong Choon Ong
doaj   +1 more source

Long-Short Term Memory-Based Application on Adaptive Cross-Platform Decoder for Bit Patterned Magnetic Recording

open access: yesIEEE Access, 2020
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

An Efficient Mutual Authentication and Fractional Lyrebird Optimization With Deep Learning–Based SIP‐Based DRDoS Attack Detection

open access: yesInternational Journal of Distributed Sensor Networks, Volume 2025, Issue 1, 2025.
Over the past decades, Session Initiation Protocol (SIP) has been commonly utilized in signaling protocol to control and signal multimedia communication sessions for providing various services to users. Video calls and internet telephony over Internet Protocol (IP) are the most common applications on SIP.
V. Sreenivasulu   +2 more
wiley   +1 more source

Domain‐adaptation‐based named entity recognition with information enrichment for equipment fault knowledge graph

open access: yesIET Collaborative Intelligent Manufacturing, Volume 6, Issue 4, December 2024.
Domain‐adaptation‐based named entity recognition with information enrichment is proposed for developing an equipment fault knowledge graph. A question answering application of the equipment fault knowledge graph is proposed. Abstract Numerous files, such as records and logs, are generated in the process of equipment diagnosis and maintenance (D&M ...
Dengrui Xiong   +3 more
wiley   +1 more source

A Novel Method for Decoding Any High-Order Hidden Markov Model

open access: yesDiscrete Dynamics in Nature and Society, 2014
This paper proposes a novel method for decoding any high-order hidden Markov model. First, the high-order hidden Markov model is transformed into an equivalent first-order hidden Markov model by Hadar’s transformation. Next, the optimal state sequence of
Fei Ye, Yifei Wang
doaj   +1 more source

Viterbi decoder without carrier recovery

open access: yesElectronics Letters, 1996
A novel Viterbi algorithm of low complexity without carrier recovery is proposed. The most important modification is that the decision metric for surviving paths is not the cumulated variable but its amplitude. Simulation results of its application to MDPSK and convolutional code show negligible performance loss.
S.D. Zhou, S.L. Mei, Y. Yao
openaire   +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

An Asynchronous Low Power and High Performance VLSI Architecture for Viterbi Decoder Implemented with Quasi Delay Insensitive Templates

open access: yesThe Scientific World Journal, 2015
Convolutional codes are comprehensively used as Forward Error Correction (FEC) codes in digital communication systems. For decoding of convolutional codes at the receiver end, Viterbi decoder is often used to have high priority.
T. Kalavathi Devi, Sakthivel Palaniappan
doaj   +1 more source

Efficient hardware implementation of a full COFDM processor with robust channel equalization and reduced power consumption

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
This work presents the design of a 12 Mb/s Coded Orthogonal Frequency Division Multiplexing (COFDM) baseband processor for the standard IEEE 802.11a. The COFDM baseband processor was designed by using ourdesigned circuits for carrier phase correction ...
Alexander López Parrado   +2 more
doaj   +1 more source

Minimum decoding trellis length and truncation depth of wrap-around Viterbi algorithm for TBCC in mobile WiMAX

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
The performance of the wrap-around Viterbi decoding algorithm with finite truncation depth and fixed decoding trellis length is investigated for tail-biting convolutional codes in the mobile WiMAX standard. Upper bounds on the error probabilities induced
Liu Yu-Sun, Tsai Yao-Yu
doaj  

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