TY - GEN
T1 - Optical RIS in Indoor VLC Environments
T2 - 3rd Pan-African Conference on Artificial Intelligence and Smart Systems Conference, PAAISS 2024
AU - Igboamalu, Frank
AU - Ndjiongue, Alain
AU - Ouahada, Khmaies
AU - Cheng, Ling
N1 - Publisher Copyright:
© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2025.
PY - 2025
Y1 - 2025
N2 - This paper explores the use of several available materials in optical reconfigurable intelligent surfaces (ORISs) for application in indoor visible light communication (VLC) environments. To achieve this, we determine the reflectivity of selected materials. We evaluate the corresponding ORIS-assisted indoor VLC channel gains and the achievable rates associated with these materials. Simulation results show that recycled materials, like can lids, lead to lower reflectivity, channel gains, and transmission rates. However, they are available worldwide and free, and their utilization in ORIS contributes to a clean living environment. The results obtained with a liquid crystal (LC)-based ORIS show that we can achieve more than 100% of reflectivity if a dye such as a concentration of trinitrofluorenone is added to the LC’s substance and helps to mitigate the data loss imposed by the double fading due to the introduction of the ORIS module into the channel.
AB - This paper explores the use of several available materials in optical reconfigurable intelligent surfaces (ORISs) for application in indoor visible light communication (VLC) environments. To achieve this, we determine the reflectivity of selected materials. We evaluate the corresponding ORIS-assisted indoor VLC channel gains and the achievable rates associated with these materials. Simulation results show that recycled materials, like can lids, lead to lower reflectivity, channel gains, and transmission rates. However, they are available worldwide and free, and their utilization in ORIS contributes to a clean living environment. The results obtained with a liquid crystal (LC)-based ORIS show that we can achieve more than 100% of reflectivity if a dye such as a concentration of trinitrofluorenone is added to the LC’s substance and helps to mitigate the data loss imposed by the double fading due to the introduction of the ORIS module into the channel.
KW - achievable rates
KW - liquid crystals
KW - non-line-of-sight channel gains
KW - optical reconfigurable intelligent surfaces (ORISs)
KW - Optical wireless communication systems
KW - ORIS materials
KW - recycled materials
UR - https://www.scopus.com/pages/publications/105012926665
U2 - 10.1007/978-3-031-94442-0_15
DO - 10.1007/978-3-031-94442-0_15
M3 - Conference contribution
AN - SCOPUS:105012926665
SN - 9783031944413
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 228
EP - 239
BT - Pan-African Artificial Intelligence and Smart Systems - 3rd Pan-African Conference, PAAISS 2024, Proceedings
A2 - N. Ngatched, Telex M.
A2 - Woungang, Isaac
A2 - Tapamo, Jules-Raymond
A2 - Viriri, Serestina
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 4 December 2024 through 6 December 2024
ER -