Authors :
V S Sneha; Nithin Joe
Volume/Issue :
Volume 7 - 2022, Issue 7 - July
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3JhiNSU
DOI :
https://doi.org/10.5281/zenodo.6930806
Abstract :
In many communication systems, turbo
codesare employed to repair errors. Turbo codes
demonstrate high error correction when compared to other
error correction methods. A Very Large Scale Integration
is suggested in this study. VLSI architecture for the Turbo
encoder implementation, Interleaves and de interleaves,
and soft-in-soft-out decoders are employed. This study
employs a technique that for the encoder portion, includes
two recursive systematic convolutional (RSC) encoders , a
Block interleaver and the decoder part involve Soft Output
Virtebi Algorithm(SOVA) decoder. Aconvolutional code is
a sort of error-correcting code used incommunicationsthat
creates parity signals by sliding a Boolean polynomial
function across a data stream. The word "convolutional
coding" comes from the sliding application, which depicts
the encoder's "convolution" acrossthe data. Convolutional
codes sliding properties make it easier to do trellis decoding
with a time-invariant trellis. Convolutional codes can be
maximum-likelihood soft-decision decoded with a
manageable level of complexity thanks to time invariant
trellis decoding. The Viterbi algorithm, also known as the
Viterbi path, is a dynamic programming approach for
determining the greatest probability estimate of the most
probable series of hidden states that leads to a series of
observed events. The quantity of times needed to decode
the bits is been reduced in this methodology. A block
interleaver accepts a set of symbols and rearranges them,
without repeating or omitting any of the symbols in the set.
The number of symbols in each set is fixed for a given
interleaver. Turbo encoding, as well as decoding
simulations are done using Modelsim software.
Keywords :
Turbo Codes; Interleaver; Viterbi Algorithm; SOVA.
In many communication systems, turbo
codesare employed to repair errors. Turbo codes
demonstrate high error correction when compared to other
error correction methods. A Very Large Scale Integration
is suggested in this study. VLSI architecture for the Turbo
encoder implementation, Interleaves and de interleaves,
and soft-in-soft-out decoders are employed. This study
employs a technique that for the encoder portion, includes
two recursive systematic convolutional (RSC) encoders , a
Block interleaver and the decoder part involve Soft Output
Virtebi Algorithm(SOVA) decoder. Aconvolutional code is
a sort of error-correcting code used incommunicationsthat
creates parity signals by sliding a Boolean polynomial
function across a data stream. The word "convolutional
coding" comes from the sliding application, which depicts
the encoder's "convolution" acrossthe data. Convolutional
codes sliding properties make it easier to do trellis decoding
with a time-invariant trellis. Convolutional codes can be
maximum-likelihood soft-decision decoded with a
manageable level of complexity thanks to time invariant
trellis decoding. The Viterbi algorithm, also known as the
Viterbi path, is a dynamic programming approach for
determining the greatest probability estimate of the most
probable series of hidden states that leads to a series of
observed events. The quantity of times needed to decode
the bits is been reduced in this methodology. A block
interleaver accepts a set of symbols and rearranges them,
without repeating or omitting any of the symbols in the set.
The number of symbols in each set is fixed for a given
interleaver. Turbo encoding, as well as decoding
simulations are done using Modelsim software.
Keywords :
Turbo Codes; Interleaver; Viterbi Algorithm; SOVA.
