Results 11 to 20 of about 3,638,652 (319)
RIS-Aided Zero-Forcing and Regularized Zero-Forcing Beamforming in Integrated Information and Energy Delivery [PDF]
IEEE Transactions on Wireless Communications, 2022 This paper considers a network of a multi-antenna array base station (BS) and a reconfigurable intelligent surface (RIS) to deliver both information to information users (IUs) and power to energy users (EUs). The RIS links the connection between the IUs and the BS as there is no direct path between the former and the latter.
Hongwen Yu +4 more
openaire +5 more sources
Local Partial Zero-Forcing Combining for Cell-Free Massive MIMO Systems [PDF]
IEEE Transactions on Communications, 2021 Cell-free massive multiple-input multiple-output (MIMO) provides more uniform spectral efficiency (SE) for users (UEs) than cellular technology. The main challenge to achieve the benefits of cell-free massive MIMO is to realize signal processing in a ...
Jiayi Zhang +3 more
semanticscholar +1 more source
Impact of Channel Aging on Zero-Forcing Precoding in Cell-Free Massive MIMO Systems [PDF]
IEEE Communications Letters, 2021 In the context of cell-free massive multi-input multi-output (mMIMO), zero-forcing precoding (ZFP) requires the exchange of instantaneous channel state information and precoded data symbols via a fronthaul network.
Wei Jiang, H. Schotten
semanticscholar +1 more source
A lower bound on the failed zero-forcing number of a graph [PDF]
Involve. A Journal of Mathematics, 2022 Given a graph $G=(V,E)$ and a set of vertices marked as filled, we consider a color-change rule known as zero forcing. A set $S$ is a zero forcing set if filling $S$ and applying all possible instances of the color change rule causes all vertices in $V ...
Eric Ufferman, Nicolas Swanson
semanticscholar +1 more source
Low-Complexity Zero-Forcing Precoding for XL-MIMO Transmissions [PDF]
European Signal Processing Conference, 2021 Deploying antenna arrays with an asymptotically large aperture will be central to achieving the theoretical gains of massive MIMO in beyond-5G systems.
Lucas N. Ribeiro +2 more
semanticscholar +1 more source
Regularized Zero-Forcing Aided Hybrid Beamforming for Millimeter-Wave Multiuser MIMO Systems
IEEE Transactions on Wireless Communications, 2023 This paper considers hybrid beamforming consisting of analog beamforming (ABF) coupled with digital baseband beamforming (DBF) which is designed for multi-user (MU) multiple input multiple output (MIMO) millimeter-wave (mmWave) communications. ABF uses a
Hongwen Yu +4 more
semanticscholar +1 more source
Cell-Free Massive MIMO: Joint Maximum-Ratio and Zero-Forcing Precoder With Power Control
IEEE Transactions on Communications, 2021 Cell-free massive multiple-input multiple-output (MIMO) system is a promising architecture for next generation wireless systems by deploying a very large number of distributed access points (APs), which simultaneously serve a smaller number of user ...
Liutong Du +4 more
semanticscholar +1 more source
All Graphs with a Failed Zero Forcing Number of Two [PDF]
Symmetry, 2021 Given a graph G, the zero forcing number of G, Z(G), is the smallest cardinality of any set S of vertices on which repeated applications of the forcing rule results in all vertices being in S.
Luis Gómez +3 more
semanticscholar +1 more source
Constructions of cospectral graphs with different zero forcing numbers [PDF]
The Electronic Journal of Linear Algebra, 2021 Several researchers have recently explored various graph parameters that can or cannot be characterized by the spectrum of a matrix associated with a graph.
A. Abiad +5 more
semanticscholar +1 more source
Fuzzy Forcing Set on Fuzzy Graphs [PDF]
Journal of Mahani Mathematical Research, 2019 The investigation of impact of fuzzy sets on zero forcing set is the main aim of this paper. According to this, results lead us to a new concept which we introduce it as Fuzzy Zero Forcing Set (FZFS). We propose this concept and suggest a polynomial time
Layia Aliahmadipour, Saeedeh Rashidi
doaj +1 more source