Results 21 to 30 of about 100,134 (209)
Angewandte Chemie, EarlyView.1,8‐DHN is an important intermediate to form complex aromatic ring systems. Phenol‐coupling reactions are important for the dimerization of two molecules. Here, we show that a fungal cytochrome P450 enzyme catalyzes specific C─C bonds. ABSTRACT Dihydroxynaphthalene (DHN) derivatives are precursors of biologically important molecules, including melanin ...
Jia Gao +8 more
wiley +2 more sources
Non-recursive max* operator with reduced implementation complexity for turbo decoding [PDF]
, 2012 In this study, the authors deal with the problem of how to effectively approximate the max?? operator when having n > 2 input values, with the aim of reducing implementation complexity of conventional Log-MAP turbo decoders.
P. T. Mathiopoulos +5 more
core +1 more source
EURASIP Journal on Advances in Signal Processing, 2017 The multiplication of connected devices goes along with a large variety of applications and traffic types needing diverse requirements. Accompanying this connectivity evolution, the last years have seen considerable evolutions of wireless communication ...
Vianney Lapotre +3 more
doaj +1 more source
Iterative QR-Based SFSIC Detection and Decoder Algorithm for a Reed–Muller Space-Time Turbo System
Entropy, 2017 An iterative QR-based soft feedback segment interference cancellation (QRSFSIC) detection and decoder algorithm for a Reed–Muller (RM) space-time turbo system is proposed in this paper. It forms the sufficient statistic for the minimum-mean-square error (
Liang-Fang Ni +4 more
doaj +1 more source
On optimal and near-optimal turbo decoding using generalized max operator [PDF]
, 2009 Motivated by a recently published robust geometric programming approximation, a generalized approach for approximating efficiently the max* operator is presented.
PAPAHARALABOS S +5 more
core +1 more source
Sliding-Window Turbo Equalization and Its Reduced-Complexity Decoding Techniques
IEEE Access, 2022 Turbo equalization is a cooperative error-correcting approach to achieve a target bit-error rate over inter-symbol interference channels. In this paper, we proposed a new turbo equalization, called sliding-window turbo equalization (SW-TE), consisting of
Sirawit Khittiwitchayakul +1 more
doaj +1 more source
Efficient MAP-algorithm implementation on programmable architectures [PDF]
Advances in Radio Science, 2003 Maximum-A-Posteriori (MAP) decoding algorithms are important HW/SW building blocks in advanced communication systems due to their ability to provide soft-output informations which can be efficiently exploited in iterative channel decoding schemes like ...
F. Kienle +3 more
doaj
Implementation of a Fully-Parallel Turbo Decoder on a General-Purpose Graphics Processing Unit
IEEE 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 +1 more source
An LDPC Decoder Architecture forWireless Sensor Network Applications [PDF]
, 2012 The pervasive use of wireless sensors in a growing spectrum of human activities reinforces the need for devices with low energy dissipation. In this work, coded communication between a couple of wireless sensor devices is considered as a method to reduce
Biroli, Andrea Dario Giancarlo +5 more
core +1 more source
Noncoherent iterative (turbo) decoding [PDF]
IEEE Transactions on Communications, 2000 Previously, noncoherent sequence detection schemes for coded linear and continuous phase modulations have been proposed, which deliver hard decisions by means of a Viterbi algorithm. The current trend in digital transmission systems toward iterative decoding algorithms motivates an extension of these schemes.
COLAVOLPE, Giulio +2 more
openaire +4 more sources