Diversity Schemes in Multi-hop Visible Light Communications for 6G Networks
Type
Conference PaperAuthors
Faisal, AliceALGHAMDI, RAWAN
Dahrouj, Hayssam

Sarieddeen, Hadi
Saeed, Nasir
Al-Naffouri, Tareq Y.

Alouini, Mohamed-Slim

KAUST Department
Center of Excellence for NEOM ResearchCommunication Theory Lab
Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division
Electrical and Computer Engineering Program
Office of the President
Date
2021Permanent link to this record
http://hdl.handle.net/10754/664545
Metadata
Show full item recordAbstract
With the fast-emerging trend of deploying Internet-of-things (IoT) in smart homes and cities, next-generation wireless systems (i.e., beyond fifth-generation (5G) of wireless mobile communications) are expected to connect a plurality of devices, including machines, sensors, tablets, cameras, etc. To this end, the radio frequency (RF) spectrum would fail to fulfill the demands of such enormous data-heavy wireless applications, as operating at the RF spectrum would largely suffer from data congestion and interference. Based on the potential of Visible Light Communications (VLC) to solve the problem of spectrum scarcity and satisfy the high data-rate requirements of beyond 5G systems, this paper focuses on utilizing VLC for IoT applications in indoor environments by means of adequately routing data among VLC-based nodes. Operating at the unlicensed optical band in t|ie visible light region utilizes simple Light-Emitting-Diodes (LEDs), which is a health-friendly communication method. VLC has the advantages of providing ultra-high bandwidth, robustness to electromagnetic interference, and inherent physical security. VLC, however, suffers from severe short communication ranges and line-of-sight (LoS) constraints. This paper proposes overcoming such challenges by means of adopting a transmit diversity scheme that transmits messages over several paths. In order to reduce the receiver outage probability, the paper proposes multiple combination schemes at the receiver side, namely selection combining, maximal-ratio combining, and threshold combining. The simulation results assess the effectiveness of the proposed diversity schemes in terms of signal-to-noise-ratio and outage probability and illustrate the suitability of deploying VLC for next-generation indoor networks. The results show that that maximal-ratio combining outperforms selection combining and threshold combining by approximately 10% and 40%, respectively.Citation
Faisal, A., Alghamdi, R., Dahrouj, H., Sarieddeen, H., Saeed, N., Al-Naffouri, T. Y., & Alouini, M.-S. (2021). Diversity Schemes in Multi-hop Visible Light Communications for 6G Networks. Procedia Computer Science, 182, 140–149. doi:10.1016/j.procs.2021.02.019Sponsors
The authors would like to thank Dr. Abderrahmen Trichili and Mr. Mohanad Ahmed for their helpful suggestions and valuable comments.Publisher
Elsevier BVJournal
Procedia Computer ScienceConference/Event name
17th International Learning and Technology Conference 2020Additional Links
https://linkinghub.elsevier.com/retrieve/pii/S187705092100483Xae974a485f413a2113503eed53cd6c53
10.1016/j.procs.2021.02.019