Results 21 to 30 of about 109,277 (295)
Experimental Analysis of Spatial Modulation Systems in Mixed LOS/NLOS Scenarios
IEEE 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
Drones, 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
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
Efficient non-line-of-sight imaging with computational single-photon imaging [PDF]
, 2020 Single-photon detectors time-stamp incident photon events with picosecond accuracy. When combined with pulsed light sources, these emerging detectors record transient measurements of a scene containing the time of flight information of the direct light ...
O'Toole, Matthew +2 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
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 Tracking and Mapping with an Active Corner Camera [PDF]
, 2022 The ability to form non-line-of-sight (NLOS) images of changing scenes could be transformative in a variety of fields, including search and rescue, autonomous vehicle navigation, and reconnaissance. Most existing active NLOS methods illuminate the hidden
Vivek K Goyal (14417688) +6 more
core +1 more source
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
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
Joint Particle Filter and UKF Position Tracking in Severe Non-Line-Of-Sight Situations [PDF]
, 2009 The performance of localization techniques in a wireless communication system is severely impaired by biases induced in the range and angle measures because of the non-line-of-sight (NLOS) situation, caused by obstacles in the transmitted signal path ...
Vidal, Josep +4 more
core +1 more source