Results 21 to 30 of about 953,119 (281)
Non-line-of-sight propagation in object localization: a survey
Gong-kuang zidonghua, 2020 Due to the existence of obstacles, none-line-of-sight(NLOS) propagation is common in localization scenes like mines, which causes refraction, reflection, diffraction and scattering of localization signals, leads to the increase of ranging error, and ...
HU Qingsong +4 more
doaj +1 more source
Steady-State Non-Line-Of-Sight Imaging [PDF]
2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019 Conventional intensity cameras recover objects in the direct line-of-sight of the camera, whereas occluded scene parts are considered lost in this process. Non-line-of-sight imaging (NLOS) aims at recovering these occluded objects by analyzing their indirect reflections on visible scene surfaces.
Wenzheng Chen +3 more
openaire +2 more sources
Non-Line-of-Sight Imaging with Picosecond Temporal Resolution [PDF]
Physical Review Letters, 2021 6 pages, 4 ...
Bin Wang +7 more
openaire +3 more sources
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
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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
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IEEE Photonics Journal, 2022 Underwater optical wireless communication (UOWC) systems have been widely studied to achieve high-speed wireless communications. To investigate and design UOWC systems, a mathematical model to characterize the accurate performance of UOWC systems is ...
Chengwei Fang, Shuo Li, Ke Wang
doaj +1 more source
New Parametrizations of Non-Gaussian Line-of-sight Velocity Distribution [PDF]
, 1995 A five-parameter fitting formula for the line-of-sight stellar velocity distributions of steady state systems is proposed. It can faithfully reproduce velocity distributions of theoretical models ranging from nearly Gaussian profiles to strongly skewed ...
Prada, Francisco, Zhao, HongSheng
core +2 more sources
Energy efficiency of some non-cooperative, cooperative and hybrid communication schemes in multi-relay WSNs [PDF]
, 2013 In this paper we analyze the energy efficiency of single-hop, multi-hop, cooperative selective decode-and-forward, cooperative incremental decode-and-forward, and even the combination of cooperative and non-cooperative schemes, in wireless sensor ...
Brante, Glauber +4 more
core +1 more source
上海师范大学学报. 自然科学版, 2017 Based on stochastic geometry theory and probability theory,a fractional frequency reuse strategy was proposed to improve user communication quality by differentiating line-of-sight propagation from non-line-of-sight propagation in ultra-dense small cell ...
Wang Yuwei, Ge Jia, Yu Hui
doaj +1 more source
International Journal of Distributed Sensor Networks, 2020 As the key technology for Internet of things, wireless sensor networks have received more attentions in recent years. Mobile localization is one of the significant topics in wireless sensor networks.
Nan Hu +5 more
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