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Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective channel.
Lei Ye, Alister Burr
doaj   +4 more sources

Coding theorems for turbo code ensembles [PDF]

open access: yesIEEE Transactions on Information Theory, 2002
This paper is devoted to a Shannon-theoretic study of turbo codes. We prove that ensembles of parallel and serial turbo codes are "good" in the following sense.
Jin, Hui, McEliece, Robert J.
core   +7 more sources

The statistical mechanics of turbo codes [PDF]

open access: yesThe European Physical Journal B, 1999
The "turbo codes", recently proposed by Berrou et. al. are written as a disordered spin Hamiltonian. It is shown that there is a threshold Theta such that for signal to noise ratios v^2 / w^2 > Theta, the error probability per bit vanishes in the ...
Montanari, A., Sourlas, N.
core   +6 more sources

Implementation of a Fully-Parallel Turbo Decoder on a General-Purpose Graphics Processing Unit

open access: yesIEEE Access, 2016
Turbo codes comprising a parallel concatenation of upper and lower convolutional codes are widely employed in the state-of-the-art wireless communication standards, since they facilitate transmission throughputs that closely approach the channel capacity.
An Li   +3 more
doaj   +2 more sources

System Performance of Concatenated STBC and Block Turbo Codes in Dispersive Fading Channels

open access: goldEURASIP Journal on Advances in Signal Processing, 2005
A new scheme of concatenating the block turbo code (BTC) with the space-time block code (STBC) for an OFDM system in dispersive fading channels is investigated in this paper.
Kam Tai Chan, Yinggang Du
doaj   +2 more sources

The Effect Of Constraint Length And Interleaver On The Performance Of Turbo Code [PDF]

open access: yesEngineering and Technology Journal, 2010
This paper presents a class derived from convolutional code called turbo code. Theperformance of turbo code is investigated through examining the effect of different constraintlength, the effect of changing rate, and the effect of interleaver on the ...
Suad A. Essa   +2 more
doaj   +1 more source

Quantum Serial Turbo Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2008
We present a theory of quantum serial turbo-codes, describe their iterative decoding algorithm, and study their performances numerically on a depolarization channel. Our construction offers several advantages over quantum LDPC codes. First, the Tanner graph used for decoding is free of 4-cycles that deteriorate the performances of iterative decoding ...
Poulin, David   +2 more
openaire   +6 more sources

Spatially coupled turbo codes [PDF]

open access: yes2014 8th International Symposium on Turbo Codes and Iterative Information Processing (ISTC), 2014
In this paper, we introduce the concept of spatially coupled turbo codes (SC-TCs), as the turbo codes counterpart of spatially coupled low-density parity-check codes. We describe spatial coupling for both Berrou et al. and Benedetto et al. parallel and serially concatenated codes.
Moloudi, Saeedeh   +2 more
openaire   +4 more sources

Performance of JPEG Image Transmission Using Proposed Asymmetric Turbo Code

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper gives the results of a simulation study on the performance of JPEG image transmission over AWGN and Rayleigh fading channels using typical and proposed asymmetric turbo codes for error control coding.
Mohamad Yusoff Alias   +2 more
doaj   +2 more sources

Interleaver design for turbo codes [PDF]

open access: yes2000 IEEE International Symposium on Information Theory (Cat. No.00CH37060), 2001
The performance of a Turbo code with short block length depends critically on the interleaver design. There are two major criteria in the design of an interleaver: the distance spectrum of the code and the correlation between the information input data and the soft output of each decoder corresponding to its parity bits.
Neil J. A. Sloane   +3 more
openaire   +4 more sources

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