Results 41 to 50 of about 3,638,652 (319)

Machine Learning-Based Beamforming in K-User MISO Interference Channels

open access: yesIEEE Access, 2021
In this paper, we consider a K-user multiple-input and single-output interference channel and propose a machine learning-based beamforming design. To circumvent the difficulties of beamforming design in interference channels, we consider a beamforming ...
Hyung Jun Kwon, Jung Hoon Lee, Wan Choi
doaj   +1 more source

Topological and Graph-coloring Conditions on the Parameter-independent Stability of Second-order Networked Systems [PDF]

open access: yes, 2017
In this paper, we study parameter-independent stability in qualitatively heterogeneous passive networked systems containing damped and undamped nodes.
Bürger, Mathias   +3 more
core   +2 more sources

On the Relationships between Zero Forcing Numbers and Certain Graph Coverings

open access: yesSpecial Matrices, 2014
The zero forcing number and the positive zero forcing number of a graph are two graph parameters that arise from two types of graph colourings. The zero forcing number is an upper bound on the minimum number of induced paths in the graph that cover all ...
Taklimi Fatemeh Alinaghipour   +2 more
doaj   +1 more source

Bounds for the Zero Forcing Number of Graphs with Large Girth

open access: yesTheory and Applications of Graphs, 2015
The zero-forcing number, Z(G) is an upper bound for the maximum nullity of all symmetric matrices with a sparsity pattern described by the graph. A simple lower bound is δ ≤ Z(G) where δ is the minimum degree.
Randy Davila, Franklin Kenter
doaj   +1 more source

On the Design of Coherent Zero-Forcing Receiver for the Flat Fading MIMO Multiple-Access Channels [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2019
Background and Objectives: Design of low-complexity receiver for space-time block coded (STBC) transmission over multiple-input multiple-output (MIMO) multiple-access channels has been subject of interest over the years.
M. Sheikh-Hosseini
doaj   +1 more source

Exact MIMO Zero-Forcing Detection Analysis for Transmit-Correlated Rician Fading [PDF]

open access: yes, 2014
We analyze the performance of multiple input/multiple output (MIMO) communications systems employing spatial multiplexing and zero-forcing detection (ZF).
Blostein, Steven   +5 more
core   +1 more source

Maximum nullity and zero forcing of circulant graphs

open access: yesSpecial Matrices, 2020
The zero forcing number of a graph has been applied to communication complexity, electrical power grid monitoring, and some inverse eigenvalue problems.
Duong Linh   +4 more
doaj   +1 more source

ZF-Based Downlink Hybrid Precoding and Combining for Rate Balancing in mmWave Multiuser MIMO Systems

open access: yesIEEE Access, 2021
This paper proposes a new design strategy for hybrid precoding and combining in the downlink of millimeter wave (mmWave) multiuser multiple-input multiple-output (MU-MIMO) channels.
Woo-Hee Lim   +3 more
doaj   +1 more source

Rigid Linkages and Partial Zero Forcing

open access: yesThe Electronic Journal of Combinatorics, 2019
Connections between vital linkages and zero forcing are established. Specifically, the notion of a rigid linkage is introduced as a special kind of unique linkage and it is shown that spanning forcing paths of a zero forcing process form a spanning rigid linkage and thus a vital linkage.
Ferrero, Daniela   +7 more
openaire   +5 more sources

Dynamic approach to k-forcing

open access: yesTheory and Applications of Graphs, 2015
The k-forcing number of a graph is a generalization of the zero forcing number. In this note, we give a greedy algorithm to approximate the k-forcing number of a graph. Using this dynamic approach, we give corollaries which improve upon two theorems from
Yair Caro, Ryan Pepper
doaj   +1 more source

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