Results 41 to 50 of about 4,741 (155)
An improved iterative decoding algorithm for block turbo codes
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
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
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
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
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
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]
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
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
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
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

