Results 91 to 100 of about 2,602 (222)

Low-power approach for decoding convolutional codes with Adaptive Viterbi Algorithm Approximations

open access: yes, 2002
Significant power reduction can be achieved by exploiting realtime variation in system characteristics while decoding convolutional codes. The approach proposed herein adaptively approximates Viterbi decoding by varying truncation length and pruning ...
R. Henning, C. Chakrabarti
core   +1 more source

A Survey and Tutorial on Low-Complexity Turbo Coding Techniques and a Holistic Hybrid ARQ Design Example [PDF]

open access: yes, 2013
Hybrid Automatic Repeat reQuest (HARQ) has become an essential error control technique in communication networks, which relies on a combination of arbitrary error correction codes and retransmissions.
Chen, Hong   +2 more
core   +1 more source

Algorithms for Hidden Markov Models Restricted to Occurrences of Regular Expressions

open access: yesBiology, 2013
Hidden Markov Models (HMMs) are widely used probabilistic models, particularly for annotating sequential data with an underlying hidden structure. Patterns in the annotation are often more relevant to study than the hidden structure itself. A typical HMM
Thomas Mailund   +4 more
doaj   +1 more source

Analysis of Hard Decision and Soft Decision decoding mechanism using Viterbi Decoder in Presence of Different Adaptive Modulations

open access: yes, 2020
This paper exhibits the performance of both the hard and soft decision method of decoding for analysis of different existing adaptive modulation techniques by using Viterbi decoder.
Narendra Nath Pathak   +2 more
core   +1 more source

Artificial Neural Network Viterbi Decoding System And Method

open access: yes, 1994
An artificial neural network (ANN) decoding system decodes a convolutionally-encoded data stream at high speed and with high efficiency. The ANN decoding system implements the Viterbi algorithm and is significantly faster than comparable digital-only ...

core  

Comparative Study of Turbo Equalization Schemes using Convolutional, Convolutional Turbo, and Block-Turbo Codes

open access: yes, 2002
Turbo equalizers have been shown to be successful in mitigating the effects of inter-symbol interference introduced by partial response modems and by dispersive channels for code rates of $R \le 1/2$.
Hamorsky, J.   +3 more
core  

SOVA-Decoded Serially Concatenated Continuous Phase Modulation System With Markov and Hidden Markov Sources

open access: yesIEEE Access
We design low-complexity bi-directional (forward and backward) modified Soft-Output Viterbi Algorithm (SOVA) decoders to exploit source memory from binary Markov and hidden Markov model (HMM) sources, respectively, for decoding in serially concatenated ...
Zhijie Guo, Lei Cao
doaj   +1 more source

ANALISA PERFORMANSI TEKNIK CHANNEL CODING DAN DECODING MENGGUNAKAN CONVOLUTIONAL CODE DAN ALGORITMA VITERBI [PDF]

open access: yes, 2011
Channel coding berfungsi untuk menjaga informasi atau data digital dari error yang mungkin terjadi selama proses transmisi dengan cara menambahkan bit redundansi (tambahan) ke dalam data yang akan dikirimkan.
Galih Joko Herianto
core  

Soft-decision Viterbi decoding with diversity combining

open access: yes, 1990
Diversity combining methods for convolutional coded and soft-decision Viterbi decoded channels in mobile satellite communications systems are evaluated and it is clarified that the pre-Viterbi-decoding maximal ratio combining shows better performance ...
Kobayashi, K., Kato, S., Sakai, T.
core  

Illustration of question reformulations in the form of Viterbi decoding structure.

open access: yes, 2013
Illustration of question reformulations in the form of Viterbi decoding structure.
Ke Lu (124270)   +5 more
core   +1 more source

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