Results 21 to 30 of about 1,926,764 (285)
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Background and purpose For postoperative breast cancer patients, deformable image registration (DIR) is challenged due to the large deformations and non‐correspondence caused by tumor resection and clip insertion. To deal with it, three metrics (fiducial‐, region‐, and intensity‐based) were jointly used in DIR algorithm for improved accuracy ...
Xin Xie +6 more
wiley +1 more source
Downlink Coverage and Rate Analysis of Low Earth Orbit Satellite Constellations Using Stochastic Geometry [PDF]
IEEE Transactions on Communications, 2020 As low Earth orbit (LEO) satellite communication systems are gaining increasing popularity, new theoretical methodologies are required to investigate such networks’ performance at large.
N. Okati +4 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView., 2023 The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi +3 more
wiley +1 more source
Architected Lattices with a Topological Transition
Advanced Engineering Materials, EarlyView., 2023 This article develops topological metamaterials showing multidirectional two‐step deformation under compression by embedding contact‐enabled topological mechanisms into lattice structures. Experiments on 3D‐printed 2D and 3D lattices and finite element simulations are conducted to demonstrate the working principle of the topological metamaterials.
Shivam Agarwal, Lihua Jin
wiley +1 more source
Stochastic Geometry-Based Analysis of LEO Satellite Communication Systems [PDF]
IEEE Communications Letters, 2020 This letter studies the performance of a low-earth-orbit (LEO) satellite communication system where the locations of the LEO satellites are modeled as a binomial point process (BPP) on a spherical surface.
Anna Talgat +2 more
semanticscholar +1 more source
Performance Analysis of Cell-Free Massive MIMO Systems: A Stochastic Geometry Approach [PDF]
IEEE Transactions on Vehicular Technology, 2020 Cell-free (CF) massive multiple-input-multiple-output (MIMO) has emerged as an alternative deployment for conventional cellular massive MIMO networks. As revealed by its name, this topology considers no cells, while a large number of multi-antenna access
Anastasios K. Papazafeiropoulos +4 more
semanticscholar +1 more source
IEEE Transactions on Wireless Communications, 2022 Due to the emergence of non-terrestrial platforms with extensive coverage, flexible deployment, and reconfigurable characteristics, the hybrid satellite-aerial-terrestrial networks (HSATNs) can accommodate a great variety of wireless access services in ...
Xiaokai Zhang +5 more
semanticscholar +1 more source
Reconfigurable Intelligent Surfaces Aided Multi-Cell NOMA Networks: A Stochastic Geometry Model [PDF]
IEEE Transactions on Communications, 2020 By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems.
Chao Zhang, Wenqiang Yi, Yuanwei Liu
semanticscholar +1 more source
New Trends in Stochastic Geometry for Wireless Networks: A Tutorial and Survey
Proceedings of the IEEE, 2021 Next-generation wireless networks are expected to be highly heterogeneous, multilayered, with embedded intelligence at both the core and edge of the network.
Yassine Hmamouche +4 more
semanticscholar +1 more source
Beam Management in 5G: A Stochastic Geometry Analysis [PDF]
IEEE Transactions on Wireless Communications, 2020 Beam management is central in the operation of beamformed wireless cellular systems such as 5G New Radio (NR) networks. Focusing the energy radiated to mobile terminals (MTs) by increasing the number of beams per cell increases signal power and decreases
Sanket S. Kalamkar +4 more
semanticscholar +1 more source