Results 21 to 30 of about 6,525 (216)

Experimental Comparison of Carrier Phase Recovery Algorithms for Uniform and Probabilistically Shaped QAM in a 324.1 Gb/S Fiber-mm-Wave Integration System at W-Band

open access: yesPhotonics, 2023
We have experimentally implemented a photonics-aided large-capacity fiber-mm-wave wireless communication system employing a simple dual-polarized single-input single-output (SISO) wireless based on polarization multiplexing at the W-band.
Junhao Zhang   +12 more
doaj   +1 more source

Viterbi decoding strategies for 5 GHz wireless LAN systems [PDF]

open access: yes, 2001
Standards for the operation of wireless local area network (WLAN) technology in the 5 GHz band have been developed in Europe, North America and Japan. These systems employ orthogonal frequency division multiplexing (OFDM) technology, and utilize forward ...
Nix, AR   +4 more
core   +1 more source

Temporal Convolutional Network Connected with an Anti-Arrhythmia Hidden Semi-Markov Model for Heart Sound Segmentation

open access: yesApplied Sciences, 2020
Heart sound segmentation (HSS) is a critical step in heart sound processing, where it improves the interpretability of heart sound disease classification algorithms.
Yibo Yin, Kainan Ma, Ming Liu
doaj   +1 more source

Unsupervised Discourse Constituency Parsing Using Viterbi EM

open access: yesTransactions of the Association for Computational Linguistics, 2020
In this paper, we introduce an unsupervised discourse constituency parsing algorithm. We use Viterbi EM with a margin-based criterion to train a span-based discourse parser in an unsupervised manner.
Nishida, Noriki, Nakayama, Hideki
doaj   +1 more source

Performance of Soft Viterbi Decoder enhanced with Non-Transmittable Codewords for storage media

open access: yesCogent Engineering, 2018
The introduction of Non-Transmittable Codewords (NTCs) into Viterbi Algorithm Decoder has emerged as one of the best ways of improving performance of the Viterbi Algorithm Decoder.
Kilavo Hassan   +2 more
doaj   +1 more source

Analytical Investigations on Carrier Phase Recovery in Dispersion-Unmanaged n-PSK Coherent Optical Communication Systems

open access: yesPhotonics, 2016
Using coherent optical detection and digital signal processing, laser phase noise and equalization enhanced phase noise can be effectively mitigated using the feed-forward and feed-back carrier phase recovery approaches.
Tianhua Xu   +6 more
doaj   +1 more source

The Viterbi Algorithm for Subset Selection [PDF]

open access: yesIEEE Signal Processing Letters, 2015
We study the problem of sparse recovery in an overcomplete dictionary. This problem has attracted considerable attention in signal processing, statistics, and computer science, and a variety of algorithms have been developed to recover the sparse vector.
Shay Maymon, Yonina C. Eldar
openaire   +1 more source

Power-Efficient Viterbi Decoder Architecture and Field Programmeble Gate Arrays Fpga Implementation

open access: yesElectrica, 2018
A Viterbi decoder systemcomprises a convolutional encoder and Viterbi decoder. In general, the codewords generated from the input series of convolutional encoder arrive at thedecoder through a noisy channel; however, the channel noise can causecorruption
Burcu Özbay, Serap Çekli
doaj   +1 more source

Advanced Real-Time Indoor Tracking Based on the Viterbi Algorithm and Semantic Data

open access: yesInternational Journal of Distributed Sensor Networks, 2015
A real-time indoor tracking system based on the Viterbi algorithm is developed. This Viterbi principle is used in combination with semantic data to improve the accuracy, that is, the environment of the object that is being tracked and a motion model. The
Jens Trogh   +3 more
doaj   +1 more source

Exon prediction on DNA-genes of Plasmodium falciparum based on coding sequence structure using hidden Markov model

open access: yesUniversa Medicina, 2007
BACKGROUND A hidden Markov model (HMM) is used for exon prediction on DNA of genes Plasmodium falciparum that has a model structure based on exon region structure in coding sequence (CDS).
Suhartanti Agoes   +3 more
doaj   +1 more source

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