Zobrazeno 1 - 10
of 2 611
pro vyhledávání: '"Optical Wireless Communication"'
Publikováno v:
Guangtongxin yanjiu, Pp 22004801-22004812 (2024)
In the field of optical communication, laser and its modulation bandwidth and modulation rate are very important for optical wireless communication. There are two main modulation modes for semiconductor laser signal: internal modulation and external
Externí odkaz:
https://doaj.org/article/14f0f51fae284228a00aa5f5094414bd
Autor:
Somia A. Abd El-Mottaleb, Mehtab Singh, Ahmad Atieh, Hassan Yousif Ahmed, Medien Zeghid, Kottakkaran Sooppy Nisar, Belgacem Bouallegue
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 102941- (2024)
This paper introduces a novel high-speed underwater optical wireless communication (UOWC) system employing three distinct orbital angular momentum (OAM) beams. A single green laser source operating at 532 nm generates these beams: LG0,0,LG0,20,andLG0
Externí odkaz:
https://doaj.org/article/dad77fa95fbc4e9eaf558a07f3d8e3f4
Publikováno v:
IEEE Open Journal of Vehicular Technology, Vol 5, Pp 1625-1636 (2024)
As industrial communication continues to evolve to increase flexibility through wireless communication, networked optical wireless communication (OWC), also known as LiFi, has emerged as a promising candidate technology due to its unlicensed spectrum
Externí odkaz:
https://doaj.org/article/756e8d6cd7de4cbc872ed45aec31c890
Publikováno v:
IEEE Access, Vol 12, Pp 144412-144419 (2024)
Efforts are being made to commercialize optical inter-satellite links (O-ISL) in low earth orbit (LEO) satellite networks as it is a crucial technology for next-generation communication networks. However, installing the pointing, acquisition, and tra
Externí odkaz:
https://doaj.org/article/8f6e12f4a3154e10b0a7b93b83b7f149
Publikováno v:
IEEE Access, Vol 12, Pp 134144-134166 (2024)
Streaming QR codes is an optical wireless communication (OWC) technology that uses screen-camera communication (SCC) with dynamic QR codes for visible light communication (VLC). At a basic level, VLC uses a light-emitting diode (LED) and photodiode (
Externí odkaz:
https://doaj.org/article/3b31a06cced549acab63346261ef00a2
Autor:
Amira G. Mohamed, Somia A. Abd El-Mottaleb, Mehtab Singh, Hassan Yousif Ahmed, Medien Zeghid, Wazie M. Abdulkawi, Belgacem Bouallegue, Osman Ahmed Abdalla
Publikováno v:
IEEE Access, Vol 12, Pp 117541-117559 (2024)
This study introduces a novel image cryptosystem designed to improve security and reliability within underwater optical wireless communication (UOWC) systems particularly for water bodies that exhibits higher absorption and scattering coefficients. A
Externí odkaz:
https://doaj.org/article/b73fcda8c288444790194d8f62786eb5
Publikováno v:
IEEE Access, Vol 12, Pp 109526-109543 (2024)
The low-pass characteristics of front-end elements including light-emitting diodes (LEDs) and photodiodes (PDs) limit the transmission data rate of visible light communication (VLC) and Light Fidelity (LiFi) systems. Using multiplexing transmission t
Externí odkaz:
https://doaj.org/article/42c3e22fb3dc4cf1ab04705284ccd99e
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 4046-4060 (2024)
Long-range wide-area network (LoRaWAN) offers reliable connectivity for terrestrial applications, but its use in underwater wireless communication faces challenges, particularly because of the effects of the air-water interface and signal attenuation
Externí odkaz:
https://doaj.org/article/d3ff0105d0bb4592bb356d679a2c7a31
Autor:
Ayumu Kariya, Keita Tanaka, Fumiya Kobori, Kiichiro Kuwahara, Shogo Hayashida, Takahiro Kodama
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-12 (2024)
When using underwater optical wireless communication in areas close to human habitats— such as shallow sea areas—specifications for highly-secure, large-capacity optical transceivers are required. Real-time transmission of 850 nm, direct-current
Externí odkaz:
https://doaj.org/article/092eee0c822541fa9b43d73cfdce8eb3
Autor:
Kamol Boonlom, Pongsathorn Chomtong, Weijia Zhang, Timothy J. Amsdon, Joachim Oberhammer, Ian D. Robertson, Nutapong Somjit
Publikováno v:
IEEE Access, Vol 12, Pp 80607-80632 (2024)
This study presents insights into high-speed optical wireless communication (OWC) within plastic pipes, introducing a Gbps-capable alternative for challenging environments. Utilizing a 1W LED with five wavelengths, the experiment explores signal powe
Externí odkaz:
https://doaj.org/article/c1a5598a42ce44ccb8d5fb67cf935bf2