Results 61 to 70 of about 3,834,565 (106)
PhotonicsThis study proposes Multiple-Input Multiple-Output and Orthogonal Frequency-Division Multiplexing methods, as introduced in the IEEE 802.15.7a-2024 standard, to achieve higher data rates and longer transmission ranges in OCC systems where a camera is ...
Van Khoa Pham, Huy Nguyen
doaj +1 more source
Correlation-based receiver for optical camera communications
, 2019 In color-multiplexed optical camera communications (OCC) systems, data acquisition is restricted by the image processing algorithm capability for fast source recognition, region-of-interest (ROI) detection and tracking, packet synchronization within ROI,
Jurado Verdú, Cristo Manuel +4 more
core +1 more source
SDR-Based All-Optical MIMO Wireless Hybrid IoT Sensor Networks
IEEE AccessIn this paper, we experimentally demonstrate and analyze the performance of a software-defined radio (SDR)-based all-optical multiple-input multiple-output (MIMO) wireless hybrid communication link for indoor Internet of Things (IoT) sensor networks.
Shivani Rajendra Teli +3 more
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High speed short range optical wireless ground-to-train communications [PDF]
, 2010 There is a huge demand for seamless high-speed communications in fast moving trains. People want broadband services while on board as in their home or in the workplace.
Ghassemlooy, Zabih +3 more
core
Results of the Optical Downlink Experiment KIODO from OICETS Satellite to Optical Ground Station Oberpfaffenhofen (OGS-OP) [PDF]
, 2007 Optical LEO downlinks from the Japanese OICETS to the optical ground station built by the German Aerospace Center (DLR) near Munich have been performed. This was the first optical LEO downlink on European grounds.
Perlot, Nicolas +13 more
core +1 more source
Optical Multispectral Camera Communications Using LED Spectral Emission Variations
, 2021 This work proposes using the changes in the LEDs' spectral emission induced by temperature variations to implement emitters for new communication channels in Optical Camera Communication (OCC) systems.
Guerra, Víctor +4 more
core +1 more source
Dual Illumination Planar Doppler Velocimetry using a Single Camera [PDF]
, 2003 A Planar Doppler Velocimetry (PDV) illumination system has been designed which is able to generate two beams, separated in frequency by about 600 MHz. This allows a common-path imaging head to be constructed, using a single imaging camera instead of ...
Nobes, David S. +7 more
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Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path [PDF]
, 2006 An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas +11 more
core +1 more source
Evaluation of the Scintillation Loss for Optical Communication Systems with Direct Detection [PDF]
, 2006 In optical communications through the atmosphere, the evaluation of a link feasibility often requires the quantification of the scintillation penalty in terms of power loss. To find how much additional optical power is needed to reach the bit-error-rate (
Perlot, Nicolas
core
UEG Week 2024 Moderated Posters
United European Gastroenterology Journal, Volume 12, Issue S8, Page 201-664, October 2024.
wiley +1 more source