Results 71 to 80 of about 2,264 (197)
Kompetensi guru dalam pengajaran amali reka bentuk dan teknologi di Sekolah Rendah Daerah Batu Pahat [PDF]
, 2007 Kompetensi bermaksud kemampuan atau kecekapan seseorang individu dalam melakukan sesuatu tugasan. Kompetensi juga merujuk kepada kemampuan seseorang dalam melaksanakan sesuatu yang diperolehi melalui pendidikan dan juga merujuk kepada prestasi dan ...
Md Harun, Zaiha Nabila
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IET Optoelectronics, Volume 19, Issue 1, January/December 2025.In order to measure the impact of interference light signals and the noise from optoelectronic devices on the signal‐to‐noise ratio, we proposed and built an experimental digital SUC system, as shown in the figure below. ABSTRACT Currently, ultraviolet (UV) communication is proposed for use in unmanned aerial vehicle (UAV) communication, while the ...
Qibin Xu +3 more
wiley +1 more source
Power distribution investigation of a hexagonal diffused cellular indoor visible light communications system [PDF]
, 2011 This paper presents a three dimensions (3D) model of optical power distribution in a diffused cellular indoor visible light communication (VLC) system.
Ghassemlooy, Zabih +3 more
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, 2019 In this article, we propose an index modulation system suitable for optical communications, based on jointly driving the time and frequency of the signal: an index-time frequency hopping (I-TFH) system.
Escribano, Francisco J. +3 more
core +1 more source
IET Optoelectronics, Volume 19, Issue 1, January/December 2025.The proposed system architecture of joint data and power transfer based on optical technology to in‐body electronics devices. ABSTRACT This study presents a proof‐of‐concept system for the joint wireless transfer of data and power to in‐body electronic devices (IEDs) using near‐infrared (NIR) light technology. The proposed system addresses two critical
Syifaul Fuada +2 more
wiley +1 more source
IET Optoelectronics, Volume 19, Issue 1, January/December 2025.We apply a deep learning (DL) technique to binary signalling design for optical wireless communication (OWC) system with a 2D LED transmitter array and an arrayed 2D receiver. It is demonstrated that the DL‐based signalling design algorithm is feasible for OWC system, considering physical channel effect. ABSTRACT Recently, deep learning (DL) techniques
Yongwoon Hwang +2 more
wiley +1 more source
, 2014 Using an auxiliary random variable technique, we prove that binary differential phase-shift keying and binary phase-shift keying have the same asymptotic bit-error rate performance in lognormal fading channels.
Alouini, Mohamed-Slim +2 more
core +1 more source
IET Optoelectronics, Volume 19, Issue 1, January/December 2025.In this paper, the use of CMOS image sensors as receivers in a rolling shutter optical camera communication system is addressed, analysing the internal working principles that dominate the registration of the incoming light signals and the digital image acquisition.
Raul Zamorano‐Illanes +5 more
wiley +1 more source
Outage Probability and BER of the Ground to Train Communication Link of a Curved Track in Raining Turbulence with Pointing Errors [PDF]
Radioengineering, 2017 We model the outage probability and bit-error rate (BER) for an intensity-modulation/direct detection optical wireless communication (OWC) systems for the ground-to-train of the curved track in rainy weather.
Y. Yang, Y. Zhang, L. Yu
doaj
Power distribution and Q-factor analysis of diffuse cellular indoor visible light communication systems [PDF]
, 2011 Comparing with the existing incandescent, light-emitting diodes (LEDs) offer higher power efficiency, higher brightness, longer lifetime, and have a fast dynamic response in the order of a few megahertz.
Ghassemlooy, Zabih +4 more
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