Results 11 to 20 of about 951,439 (281)

Non-line-of-sight imaging over 1.43 km. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Wu C   +11 more
europepmc   +2 more sources

Low-latency time-of-flight non-line-of-sight imaging at 5 frames per second. [PDF]

open access: yesNat Commun, 2021
Nam JH   +7 more
europepmc   +2 more sources

Constrained L1-Norm Minimization Method for Range-Based Source Localization under Mixed Sparse LOS/NLOS Environments

open access: yesSensors, 2021
Under mixed sparse line-of-sight/non-line-of-sight (LOS/NLOS) conditions, how to quickly achieve high positioning accuracy is still a challenging task and a critical problem in the last dozen years.
Chengwen He, Yunbin Yuan, Bingfeng Tan
doaj   +1 more source

Line-of-sight and non-line-of-sight links for dispersive terahertz wireless networks

open access: yesAPL Photonics, 2021
Despite the rapidly growing interest in exploiting millimeter and terahertz waves for wireless data transfer, the role of reflected non-line-of-sight (NLOS) paths in wireless networking is one of the least explored questions.
Yasaman Ghasempour   +4 more
doaj   +1 more source

Path Loss Measurements and Model Analysis in an Indoor Corridor Environment at 28 GHz and 38 GHz

open access: yesSensors, 2022
This paper examines the large-scale path loss models for an indoor corridor environment at frequencies of 28 and 38 GHz. The measurement environment consists of an indoor corridor with both line-of-sight (LOS) and non-line of sight (NLOS) scenarios using
Tolulope T. Oladimeji   +2 more
doaj   +1 more source

Experimental Analysis of Spatial Modulation Systems in Mixed LOS/NLOS Scenarios

open access: yesIEEE Access, 2022
Spatial modulation (SM) as a multiple-input multiple-output (MIMO) technique is a solution suitable which offers, with low system complexity and cost, improved spectral efficiency compared to single-input-single-output (SISO) systems.
Yanni Zhou   +2 more
doaj   +1 more source

Prioritized User Association for Sum-Rate Maximization in UAV-Assisted Emergency Communication: A Reinforcement Learning Approach

open access: yesDrones, 2022
Unmanned air vehicles (UAVs) used as aerial base stations (ABSs) can provide communication services in areas where cellular network is not functional due to a calamity.
Abdul Basit Siddiqui   +4 more
doaj   +1 more source

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