Results 41 to 50 of about 4,741 (155)

An improved iterative decoding algorithm for block turbo codes

open access: yes2006 IEEE International Symposium on Information Theory, 2006
Since the introduction of the block turbo code (BTC) except, several soft-input/soft-output (SISO) algorithms have been used in order to softly decode product codes. The classical Chase-Pyndiah algorithm seems to be one with the best trade-off between complexity and performance, especially for low error correction capability t (typically 1 or 2) where ...
Massinissa Lalam   +4 more
openaire   +2 more sources

On the Error Statistics of Turbo Decoding for Hybrid Concatenated Codes Design

open access: yesJournal of Communications Software and Systems, 2019
In this paper we propose a model for the generation of error patterns at the output of a turbo decoder. One of the advantages of this model is that it can be used to generate the error sequence with little effort.
Fulvio Babich, Francesca Vatta
doaj  

Performance of Turbo-Codes with Some Proposed Interleaver Schemes

open access: yesAl-Khawarizmi Engineering Journal, 2006
This paper describes a number of new interleaving strategies based on the golden section. The new interleavers are called golden relative prime interleavers, golden interleavers, and dithered golden interleavers. The latter two approaches involve sorting
Ahmed S. Hadi
doaj  

Performance of Turbo-Codes with Some Proposed Interleaver Schemes

open access: yesAl-Khawarizmi Engineering Journal, 2017
This paper describes a number of new interleaving strategies based on the golden section. The new interleavers are called golden relative prime interleavers, golden interleavers, and dithered golden interleavers. The latter two approaches involve sorting
Ahmed S. Hadi
doaj  

ANALYSIS OF PERFORMANCE OF ITERATIVE DECODING OF PRODUCT CODE IN ADDITIVEWHITEGAUSSIANNOISE CHANNEL

open access: yesAl-Qadisiyah Journal for Engineering Science, 2010
This search describes an iterative decoding of product code using Soft Input Soft Output Maximum Likelihood (SISO ML) decoder. The SISO ML decoder is implementing using Pyndiah's algorithm where the soft output of decoder is an estimation of the log ...
Samir Abdul Cathem Khother   +1 more
doaj  

Channel-Adaptive Joint Selection of FEC Scheme, Rate, and Segment Size for Short-Block Underwater Acoustic Communication

open access: yesJournal of Marine Science and Engineering
Underwater acoustic (UWA) sensor and control links carry mostly short messages (below ∼10 kB) over time-varying, low-SNR multipath channels, which is a regime where forward error correction (FEC) operates on short, finite blocks where a single static ...
Seunggyu Kim, Saeyong Park, Taeho Im
doaj   +1 more source

Adaptive Channel Estimation based on Soft Information Processing in Broadband Spatial Multiplexing Receivers [PDF]

open access: yesTelfor Journal, 2010
In this paper we present a novel approach in Multiple-Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) channel estimation technique based on a Decision Directed Recursive Least Squares (RLS) algorithm in which no pilot ...
P. Beinschob, U. Zölzer
doaj  

Turbo Codes Performance Optimization over Block Fading Channels

open access: yesJournal of Communications Software and Systems, 2017
In this paper, the best achievable performance of a turbo coded system on a block fading channel is obtained, assuming binary antipodal modulation. A rate 1/3 turbo code is considered, obtained by concatenating, through a random interleaver, an 8-states rate 1/2 and a rate 1 convolutional codes (CC).
BABICH, FULVIO   +2 more
openaire   +7 more sources

On the Error Performance of Coding and Equalization in Low-Complexity Ultra-Wideband Communication Systems

open access: yesJournal of Communications Software and Systems, 2006
In this paper, the performance of various channel coding schemes is investigated in pulse-based ultra-wideband(UWB) communication systems for applications in short-range indoor environments.
Robert H. Morelos-Zaragoza
doaj  

High throughput implementation of an adaptive serial concatenation turbo decoder

open access: yesJournal of Communications Software and Systems, 2006
The complete design of a new high throughput adaptive turbo decoder is described. The developed system isprogrammable in terms of block length, code rate and modulation scheme, which can be dinamically changed from frame to frame, according to varied ...
Maurizio Martina   +4 more
doaj  

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