Results 41 to 50 of about 4,861 (197)
Efficient quantum amplitude encoding of polynomial functions [PDF]
QuantumLoading functions into quantum computers represents an essential step in several quantum algorithms, such as quantum partial differential equation solvers.
Javier Gonzalez-Conde +3 more
doaj +1 more source
Mathematics, 2021 In heterogeneous networks (HetNets), non-orthogonal multiple access (NOMA) has recently been proposed for hybrid-access small-cells, promising a manifold network capacity compared to OMA.
M. Rehan Usman +6 more
doaj +1 more source
Quantum Computing and a Unified Approach to Fast Unitary Transforms
, 2002 A quantum computer directly manipulates information stored in the state of quantum mechanical systems. The available operations have many attractive features but also underly severe restrictions, which complicate the design of quantum algorithms.
Agaian, Sos S., Klappenecker, Andreas
core +1 more source
Hardware structure for Walsh-Hadamard transforms
Electronics Letters, 1998 An efficient hardware structure is reported for the Walsh-Hadamard transform. Based on the radix-2 algorithm, the structure can be implemented with shift registers and controllable adder/subtracters for high processing throughput. Such an implementation is particularly suited to applications that require real-time operations and interface directly with
null Bi, B.G. Evans
openaire +1 more source
PAPR reduction of optical OFDM signals in visible light communications
ICT Express, 2019 Orthogonal frequency division multiplexing (OFDM) is extensively used in optical communications to achieve high rate transmission. In this paper, Vandermonde like matrix (VLM) pre-coding approach is offered to reduce the high peak-to-average power ratio (
Abbas Ali Sharifi
doaj +1 more source
, 2017 In this paper, we propose a novel joint coding-modulation technique based on serial concatenation of orthogonal linear transform, such as discrete Fourier transform (DFT) or Walsh-Hadamard transform (WHT), with memoryless nonlinearity.
Zhidkov, Sergey V.
core +1 more source
Comparing GFDM With OFDM for Use in 6G Communication From a New Perspective
Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.The most important challenges facing 6G communication systems are the large amount of data and low latency as compared to previous generations. Therefore, it has become necessary to use advanced technologies to meet the requirements of 6G wireless communication systems.
Mohammed Azher Therib +2 more
wiley +1 more source
Cybernetics and Information Technologies, 2023 Embedding the watermark is still a challenge in image watermarking. The watermark should not reduce the visual quality of the image being watermarked and hard to distinguish from its original.
Marjuni Aris +2 more
doaj +1 more source
Digital Image Watermarking [PDF]
, 2012 V této práci jsou popsány základy digitálního vodoznačení obrazů a metody porovnání změny obrazu jeho vodoznačením. Jsou navrženy metody založené na využití diskrétní vlnkové traansformace, diskrétní kosinové transformace a Walsh-Hadamardovy transformace.
Vitner, Petr
core
Designing superior crosses in cassava using genomic mating to boost yield and genetic diversity
Crop Science, Volume 65, Issue 6, November/December 2025.Abstract Identifying superior cassava (Manihot esculenta Crantz) crosses through phenotypic evaluations is costly and inefficient due to cassava's long breeding cycles and low flowering rates. In this study, we applied genomic mate selection and optimum contribution selection using additive, dominance, and directional dominance models to enhance ...
Paulo Henrique Ramos Guimarães +4 more
wiley +1 more source