Results 41 to 50 of about 1,046,206 (327)

FDD Downlink Channel Estimation Solution With Common Sparsity Learning Algorithm and Zero-Partition Enhanced GAMP Algorithm

open access: yesIEEE Access, 2018
To acquire precise channel state information in the forthcoming 5G frequency division duplexing (FDD) communication system, we study the virtual angular domain channel common sparsity in the massive multiple-input multiple-output orthogonal frequency ...
Wenyuan Wang   +3 more
doaj   +1 more source

Mirror theories of 3d N $$ \mathcal{N} $$ = 2 SQCD

open access: yesJournal of High Energy Physics, 2018
Using a recently proposed duality for U(N ) supersymmetric QCD (SQCD) in three dimensions with monopole superpotential, in this paper we derive the mirror dual description of N $$ \mathcal{N} $$ = 2 SQCD with unitary gauge group, generalizing the known ...
Simone Giacomelli, Noppadol Mekareeya
doaj   +1 more source

Fairness-aware resource partition and routing in relay-enhanced orthogonal-frequency-division-multiple-accessing cellular networks

open access: yes, 2012
Unlike conventional cellular networks where the evolved Node B (eNB) performs centralised scheduling, future relay-enhanced cellular (REC) networks allow relay nodes (RNs) to schedule users independently.
Lv, Z.   +4 more
core   +1 more source

Beyond Low-Rank Representations: Orthogonal Clustering Basis Reconstruction with Optimized Graph Structure for Multi-view Spectral Clustering [PDF]

open access: yesNeural Networks, 2017
Low-Rank Representation (LRR) is arguably one of the most powerful paradigms for Multi-view spectral clustering, which elegantly encodes the multi-view local graph/manifold structures into an intrinsic low-rank self-expressive data similarity embedded in
Yang Wang, Lin Wu
semanticscholar   +1 more source

Downlink Non-Orthogonal Multiple Access Without SIC for Block Fading Channels: An Algebraic Rotation Approach [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2019
In this paper, we investigate the problem of downlink non-orthogonal multiple access (NOMA) over block fading channels. For the single antenna case, we propose a class of NOMA schemes where all the users’ signals are mapped into $n$ -dimensional ...
Min Qiu, Yu-Chih Huang, Jinhong Yuan
semanticscholar   +1 more source

On the Structure of SO(3): Trace and Canonical Decompositions

open access: yesMathematics
This paper is devoted to some selected topics of the theory of special orthogonal group SO(3). First, we discuss the trace of orthogonal matrices and its relation to the characteristic polynomial; on this basis, the partition of SO(3) formed by ...
Demeter Krupka, Ján Brajerčík
doaj   +1 more source

New 3d N $$ \mathcal{N} $$ = 2 dualities from quadratic monopoles

open access: yesJournal of High Energy Physics, 2018
Aspects of three dimensional N $$ \mathcal{N} $$ = 2 gauge theories with monopole super-potentials and their dualities are investigated. The moduli spaces of a number of such theories are studied using Hilbert series.
Antonio Amariti   +2 more
doaj   +1 more source

On base sizes for actions of finite classical groups

open access: yes, 2007
Let G be a finite almost simple classical group and let ? be a faithful primitive non-standard G-set. A base for G is a subset B C_ ? whose pointwise stabilizer is trivial; we write b(G) for the minimal size of a base for G.
Timothy C. Burness   +2 more
core   +1 more source

Discrete modified projection methods for Urysohn integral equations with Green’s function type kernels

open access: yesMathematical Modelling and Analysis, 2020
In the present paper we consider discrete versions of the modified projection methods for solving a Urysohn integral equation with a kernel of the type of Green’s function.
Rekha P. Kulkarni, Gobinda Rakshit
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

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