Results 11 to 20 of about 1,069,691 (320)

Non-orthogonal Multiple Access Enabled Scalable Video Multicast in HetNets [PDF]

open access: yesJisuanji kexue, 2021
In this paper,a resource management framework is presented for non-orthogonal multiple access (NOMA)-enhanced scalable video coding (SVC) multicast in heterogeneous networks (HetNets).In this framework,radio spectrum slicing for different base stations ...
JI Xiao-xiang, SHEN Hang, BAI Guang-wei
doaj   +1 more source

Construction of quaternary quantum error-correcting codes via orthogonal arrays

open access: yesFrontiers in Physics, 2023
This paper presents a method based on orthogonal arrays of constructing pure quaternary quantum error-correcting codes. As an application of the method, some infinite classes of quantum error-correcting codes with distances 2, 3, and 4 can be obtained ...
Shanqi Pang   +6 more
doaj   +1 more source

Construction of Binary Quantum Error-Correcting Codes from Orthogonal Array

open access: yesEntropy, 2022
By using difference schemes, orthogonal partitions and a replacement method, some new methods to construct pure quantum error-correcting codes are provided from orthogonal arrays.
Shanqi Pang, Hanxiao Xu, Mengqian Chen
doaj   +1 more source

Quantum Error-Correcting Codes Based on Orthogonal Arrays

open access: yesEntropy, 2023
In this paper, by using the Hamming distance, we establish a relation between quantum error-correcting codes ((N,K,d+1))s and orthogonal arrays with orthogonal partitions.
Rong Yan   +3 more
doaj   +1 more source

RIS Partition-Assisted Non-Orthogonal Multiple Access (NOMA) and Quadrature-NOMA With Imperfect SIC

open access: yesIEEE Transactions on Wireless Communications, 2023
Reconfigurable intelligent surface (RIS)-assisted power-domain non-orthogonal multiple access (PD-NOMA) system has emerged as a revolutionary technology to enhance the spectrum efficiency for future wireless networks.
Ankita Chauhan   +2 more
semanticscholar   +1 more source

Orthogonalization of Positive Operator Valued Measures

open access: yesComptes Rendus. Mathématique, 2022
We show that a partition of the unity (or POVM) on a Hilbert space that is almost orthogonal is close to an orthogonal POVM in the same von Neumann algebra. This generalizes to infinite dimension previous results in matrix algebras by Kempe–Vidick and Ji–
de la Salle, Mikael
doaj   +1 more source

Mutually orthogonal cycle systems [PDF]

open access: yesArs Math. Contemp., 2022
An ${\ell}$-cycle system ${\mathcal F}$ of a graph $\Gamma$ is a set of ${\ell}$-cycles which partition the edge set of $\Gamma$. Two such cycle systems ${\mathcal F}$ and ${\mathcal F}'$ are said to be {\em orthogonal} if no two distinct cycles from ...
A. Burgess   +2 more
semanticscholar   +1 more source

Study on the Mechanism and Effect of a Partition Wall Controlling Foundation Pit Deformation in the Soft-Soil Area

open access: yesAdvances in Civil Engineering, 2022
Based on the soft-soil layer and several practical subway stations projects, the effect of partition wall main parameters on internal force and the deformation of retaining structure was thoroughly investigated via numerical simulation and orthogonal ...
Chunlei Feng   +3 more
doaj   +1 more source

Embedded Mean-Field Theory with Block-Orthogonalized Partitioning [PDF]

open access: yesJournal of Chemical Theory and Computation, 2017
Embedded mean-field theory (EMFT) provides a simple, flexible framework for describing subsystems at different levels of mean-field theory. Subsystems are defined by partitioning a one-particle basis set, with a natural choice being the atomic orbital (AO) basis. Although generally well behaved, EMFT with AO partitioning can exhibit unphysical collapse
Feizhi Ding   +2 more
openaire   +4 more sources

Self-orthogonal codes from equitable partitions of association schemes [PDF]

open access: yesJournal of Algebraic Combinatorics, 2022
We give a method of constructing self-orthogonal codes from equitable partitions of association schemes. By applying this method we construct self-orthogonal codes from some distance-regular graphs. Some of the obtained codes are optimal. Further, we introduce a notion of self-orthogonal subspace codes.
Dean Crnković   +2 more
openaire   +2 more sources

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