Results 21 to 30 of about 3,638,652 (319)
On the Zero Forcing Number and Spectral Radius of Graphs
Electronic Journal of Combinatorics, 2022 In this paper, we determine the graphs (respectively, trees) with maximum spectral radius among all graphs (respectively, trees) with zero forcing number at most $k$.
Wenqian Zhang +3 more
semanticscholar +1 more source
Forcing Parameters in Fully Connected Cubic Networks
Mathematics, 2022 Domination in graphs has been extensively studied and adopted in many real life applications. The monitoring electrical power system is a variant of a domination problem called power domination problem.
Yongsheng Rao +4 more
doaj +1 more source
Optimization of the Receiving Orientation Angle for Zero-Forcing Precoding in VLC
IEEE Communications Letters, 2021 We study the performance of linear zero-forcing (ZF) precoding in multiuser multiple-input single-output visible light communications (VLC) when we are able to select the receiving orientation angle (ROA) of each user. For radio-frequency communications,
Máximo Morales-Céspedes +2 more
semanticscholar +1 more source
Local Partial Zero-Forcing Precoding for Cell-Free Massive MIMO [PDF]
IEEE Transactions on Wireless Communications, 2019 Cell-free Massive MIMO (multiple-input multiple-output) is a promising distributed network architecture for 5G-and-beyond systems. It guarantees ubiquitous coverage at high spectral efficiency (SE) by leveraging signal co-processing at multiple access ...
Giovanni Interdonato +3 more
semanticscholar +1 more source
Total Forcing Sets and Zero Forcing Sets in Trees
Discussiones Mathematicae Graph Theory, 2020 A dynamic coloring of the vertices of a graph G starts with an initial subset S of colored vertices, with all remaining vertices being non-colored. At each discrete time interval, a colored vertex with exactly one non-colored neighbor forces this non ...
Davila Randy, Henning Michael A.
doaj +1 more source
Zero-Forcing-Based Downlink Virtual MIMO–NOMA Communications in IoT Networks [PDF]
IEEE Internet of Things Journal, 2020 To support massive connectivity and boost spectral efficiency for Internet of Things (IoT), a downlink scheme combining virtual multiple-input–multiple-output (MIMO) and nonorthogonal multiple access (NOMA) is proposed. All the single-antenna IoT devices
Zheng Shi +6 more
semanticscholar +1 more source
Improved Signal Detection Techniques for QOSTBC System in Fast Fading Channel
Journal of Telecommunications and Information Technology, 2020 Most existing quasi-orthogonal space time block coding (QO-STBC) schemes have been developed relying on the assumption that the channel is flat or remains static during the length of the code word symbol periods to achieve an optimal antenna diversity ...
Jyoti Prasanna Patra, Poonam Singh
doaj +1 more source
Throttling positive semidefinite zero forcing propagation time on graphs [PDF]
, 2018 Zero forcing is a process on a graph that colors vertices blue by starting with some of the vertices blue and applying a color change rule. Throttling minimizes the sum of the size of the initial blue vertex set and the number of the time steps needed to
Carlson, Joshua +7 more
core +4 more sources
Strong Structural Controllability of Diffusively Coupled Networks: Comparison of Bounds Based on Distances and Zero Forcing [PDF]
IEEE Conference on Decision and Control, 2020 We study the strong structural controllability (SSC) of diffusively coupled networks, where the external control inputs are injected to only some nodes, namely the leaders.
Yasin Yazıcıoğlu +3 more
semanticscholar +1 more source
Analytical Framework of CP-Free Multiuser OFDM System for Coordinated Multi-Point at mmWave
Applied Sciences, 2021 In this paper, a coordinated multipoint joint transmission (CoMP-JT) framework at mmWave for a cyclic prefix (CP)-free multiuser OFDM wireless communication system is developed and analyzed.
Joarder Jafor Sadique +7 more
doaj +1 more source