Results 41 to 50 of about 448,626 (277)

Zero forcing number, constrained matchings and strong structural controllability

open access: yes, 2015
The zero forcing number is a graph invariant introduced to study the minimum rank of the graph. In 2008, Aazami proved the NP-hardness of computing the zero forcing number of a simple undirected graph.
Delvenne, Jean-Charles, Trefois, Maguy
core   +1 more source

Prior Zero Forcing for Cognitive Relaying

open access: yesIEEE Transactions on Wireless Communications, 2013
Relaying primary signals by cognitive base-stations (CBSs) can help the primary system and thus win CBSs a higher chance to transmit their own signals. For this purpose, conventional zero-forcing (CZF) beamforming is a straightforward solution where the primary and cognitive signals are transmitted from a multi-antenna CBS without causing interference ...
Song S.H., Hasna , Mazen, Letaief K.B.
openaire   +3 more sources

Uplink Sum Rate Analysis of Massive Distributed MIMO Systems Over Composite Fading Channels

open access: yesIEEE Access, 2018
As the number of antennas goes large in the massive multiple-input multiple-output (MIMO) scenario, the large-scale fading plays an increasingly important role in the system performance.
Li Wang   +3 more
doaj   +1 more source

Feasibility and Safety of High‐Dose Proton Re‐Irradiation in Recurrent Pediatric Central Nervous System Tumors: A Single‐Institution Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Pediatric central nervous system (CNS) tumors often recur despite multimodality therapy. Although re‐irradiation (re‐RT) has historically been limited by concerns for severe late toxicities, modern techniques have renewed interest in this approach. Proton therapy provides dosimetric advantages that may enable curative re‐treatment with
Jin‐Ho Song   +15 more
wiley   +1 more source

Analisis Perbandingan Kinerja Ekualisasi Zero Forcing dan MMSE pada FBMC-OQAM

open access: yesJurnal Elkomika, 2019
ABSTRAK Kebutuhan layanan data pada teknologi 5G sangatlah tinggi. FBMC sebagai solusi dari kelemahan yang ada di OFDM menjadi teknologi yang digunakan pada komunikasi 5G.
JANS HENDRY, ANGGUN FITRIAN ISNAWATI
doaj   +1 more source

Equalization-Based Beamforming for Secure Multicasting in Multicast Wiretap Channels

open access: yesIEEE Access, 2021
In this paper, a beamforming scheme is proposed to maximize a secrecy multicast rate (SMR) in the multicast wiretap channel, in which the multiple unauthorized users overhear the multicast messages.
Duckdong Hwang   +4 more
doaj   +1 more source

Zero forcing in iterated line digraphs

open access: yes, 2018
Zero forcing is a propagation process on a graph, or digraph, defined in linear algebra to provide a bound for the minimum rank problem. Independently, zero forcing was introduced in physics, computer science and network science, areas where line ...
Ferrero, Daniela   +2 more
core   +1 more source

Zero forcing with random sets

open access: yesDiscrete Mathematics
22 pages, 5 ...
Curtis, Bryan   +4 more
openaire   +3 more sources

Feasibility and Preliminary Efficacy of Integrative Neuromuscular Training for Childhood Cancer Survivors: A Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long‐term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during ...
Anna Maria Markarian   +7 more
wiley   +1 more source

Failed Skew Zero Forcing Numbers of Path Powers and Circulant Graphs

open access: yesAppliedMath
For a graph G, the zero forcing number of G, Z(G), is defined to be the minimum cardinality of a set S of vertices for which repeated applications of the forcing rule results in all vertices being in S. The forcing rule is as follows: if a vertex v is in
Aidan Johnson   +3 more
doaj   +1 more source

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