Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Ayad Atiyah Abdulkafi"'
Autor:
Israa Hilme, Ayad Atiyah Abdulkafi
Publikováno v:
Tikrit Journal of Engineering Sciences, Vol 30, Iss 3 (2023)
Massive Multiple-Input Multiple-Output (Massive MIMO) is widely regarded as a highly promising technology for the forthcoming generation of wireless systems. The massive MIMO implementation involves the integration of a substantial number of antenna
Externí odkaz:
https://doaj.org/article/1cc6ba7e21da4064a20b51ffef4b0db8
In this paper, an explanation of beamforming and its types were presented. Several methods used in beamforming were clarified, including the methods used by MMSE, Zf, Kalman filter, and others. A number of parameters have been changed, including (Pat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3296aebc2e32a8f8eb89a1290fcdf45f
Publikováno v:
Optical and Quantum Electronics. 54
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4666d32632245ca1f08fb60ece9895e1
https://doi.org/10.1007/s11082-022-03869-4
https://doi.org/10.1007/s11082-022-03869-4
Publikováno v:
Photonic Network Communications. 38:299-313
WOS:000494480900001 This paper presents two new schemes for improving the spectral efficiency of an optical orthogonal frequency-division multiplexing-based visible light communication (OFDM-VLC) system. The proposed schemes employed the generalized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0639166353c6450233a96554c6f42797
https://doi.org/10.1007/s11107-019-00863-x
https://doi.org/10.1007/s11107-019-00863-x
Publikováno v:
Journal of Optical Communications. 44:111-116
In this paper, Li-Fi system based on orthogonal frequency division multiplexing (Li-Fi-OFDM) is presented. In these systems, light-emitting diodes (LEDs) are used to send information data using intensity modulation. LEDs have a limited dynamic range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e9a8e3275286975fb972ae5fc14655f
https://doi.org/10.1515/joc-2019-0059
https://doi.org/10.1515/joc-2019-0059
Publikováno v:
Journal of Optical Communications.
The continued increase in several mobile applications forces to replace existing limited spectrum indoor radio frequency wireless connections with high-speed ones. Visible light communications (VLC) technology has gained prominence in the development
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7966ae9d3f4ffdd90e4cbe718e09d152
https://doi.org/10.1515/joc-2021-0103
https://doi.org/10.1515/joc-2021-0103
Publikováno v:
Telecommunications and Radio Engineering. 78:1213-1222
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95831471c77bcdf3b8709ce87dfb011c
https://doi.org/10.1615/telecomradeng.v78.i13.70
https://doi.org/10.1615/telecomradeng.v78.i13.70
Publikováno v:
Volume: 10, Issue: 2 476-488
European Journal of Technique (EJT)
European Journal of Technique (EJT)
In this paper, we discuss the security of the Internet of Things (IoT) which needs to utilize particular algorithms in order to offer low power consumption and a long lifespan, along with other parameters such as strong immunity against attacks, lowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b2302db40653941ae311f63f692cbd5
https://dergipark.org.tr/tr/pub/ejt/issue/59168/702563
https://dergipark.org.tr/tr/pub/ejt/issue/59168/702563
Autor:
Yaseein Soubhi Hussein, Ridha Touhami, Ayad Atiyah Abdulkafi, Mohamad Yusoff Alias, Djamal Slimani
Publikováno v:
Journal of Optical Communications.
Orthogonal frequency-division multiplexing technique (OFDM) has been adopted widely as a modulation technique for radio frequency (RF) and optical communication systems such as visible-light communication (VLC) due to its high spectral efficiency and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc38bfc3cd2125e1fe828fd41e0d10e4
https://doi.org/10.1515/joc-2019-0273
https://doi.org/10.1515/joc-2019-0273
Publikováno v:
Optics Communications. 419:125-133
ABDULKAFI, Ayad Atiyah/0000-0002-1160-6011 WOS:000429305800022 Achieving high spectral efficiency is the key requirement of 5G and optical wireless communication systems and has recently attracted much attention, aiming to satisfy the ever increasing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::075ee0a8d8a1c48719e1ff8069053130
https://doi.org/10.1016/j.optcom.2018.03.030
https://doi.org/10.1016/j.optcom.2018.03.030