Results 11 to 20 of about 128,085 (304)
Combinatorics, Probability and Computing, 2009 Random geometric graphs have been one of the fundamental models for reasoning about wireless networks: one places n points at random in a region of the plane (typically a square or circle), and then connects pairs of points by an edge if they are within a fixed distance of one another.
Alan M. Frieze +3 more
openaire +4 more sources
Time-of-arrival–based localization algorithm in mixed line-of-sight/non-line-of-sight environments [PDF]
International Journal of Distributed Sensor Networks, 2020 A novel time-of-arrival–based localization algorithm in mixed line-of-sight/non-line-of-sight environments is proposed. First, an optimization problem of target localization in the known distribution of line-of-sight and non-line-of-sight is established,
Peixin Wang +4 more
doaj +2 more sources
Non-line-of-sight imaging [PDF]
Nature Reviews Physics, 2020 Emerging single-photon-sensitive sensors combined with advanced inverse methods to process picosecond-accurate time-stamped photon counts have given rise to unprecedented imaging capabilities. Rather than imaging photons that travel along direct paths from a source to an object and back to the detector, non-line-of-sight (NLOS) imaging approaches ...
Daniele Faccio +2 more
openaire +5 more sources
Non-Line-of-Sight Beacon Identification for Sensor Localization [PDF]
International Journal of Distributed Sensor Networks, 2012 In recent years, sensors are often deployed to sense the target environment. Besides the sensed environmental information, sensor's position information itself is very important in most cases.
Chunfeng Wan, Akira Mita, Songtao Xue
doaj +2 more sources
Line-of-Sight Percolation [PDF]
Combinatorics, Probability and Computing, 2009 Given ω ≥ 1, let $\Z^2_{(\omega)}$ be the graph with vertex set $\Z^2$ in which two vertices are joined if they agree in one coordinate and differ by at most ω in the other. (Thus $\Z^2_{(1)}$ is precisely $\Z^2$.) Let pc(ω) be the critical probability for site percolation on $\Z^2_{(\omega)}$.
Bollobas, B, Janson, S, Riordan, O
openaire +3 more sources
Adaptation Metrics for Low-Order Nonstationary Line-of-Sight-MIMO Links [PDF]
, 2023 Adaptation metrics for low-order nonstationary line-of-sight-MIMO links. These are linked to the mean-square error (MSE) and channel MIMO matrix condition number.
Kofi Anim-Appiah (15059764) +1 more
core +1 more source
Propagation path loss prediction modelling in enclosed environments for 5G networks: A review
Heliyon, 2022 Millimeter wave path loss modeling is essential for reliable system design and accurate link budget calculations. The motivation for this research is that channel modeling in 5G millimeter wave propagation in an indoor environment is a current research ...
Tolulope T. Oladimeji +2 more
doaj +1 more source
IEEE Access, 2022 Developing ways to affordably deliver broadband connectivity is one of the major issues of our time. In challenging deployment locations with irregular terrain, traditional Clear-Line-Of-Sight (CLOS) wireless links can be uneconomical to deploy, as the ...
Edward J. Oughton +2 more
doaj +1 more source
qpqq/The-line-of-sight-analysis-of-spatial-distribution-of-galaxies-in-the-COSMOS2015-catalogue: LSA software [PDF]
, 2020 The line-of-sight analysis software for astronomers and ...
qpqq
core +1 more source