Abstract:
This paper presents a survey of the concepts and technological aspects of optical communications, with a particular focus on Li-Fi systems as an advanced subcategory of visible light communication (VLC). Li-Fi represents a concrete solution for simultaneous illumination and data transmission using LED light sources based on the principle of intensity modulation and direct detection (IM/DD). The paper reviews and synthesizes existing approaches to the frame structure and organization of data transmission in Li-Fi systems (IEEE 802.15.7 standard). The hierarchy of data encapsulation from the physical to the network layer is described, as well as the role of different frame types (data, control, and management), with attention to the superframe structure that includes beacon intervals, a Contention Access Period (CAP), and a Contention Free Period (CFP) with the implementation of mechanisms such as CSMA/CA and Guaranteed Time Slots (GTS). Together with the basic network topologies in Li-Fi systems, including peer-to-peer, star, and broadcast topologies, Li-Fi has the potential for application in wireless networks where high capacity and secure data transmission are required.
CITATION:
IEEE format
L. Stojanović, P. Spalević, “A Survey of Frame-level Communication in Li-fi Networks,” in Sinteza 2025 - International Scientific Conference on Information Technology, Computer Science, and Data Science, Belgrade, Singidunum University, Serbia, 2026, pp. 20-26. doi:10.15308/Sinteza-2026-20-26
APA format
Stojanović, L., Spalević, P. (2026). A Survey of Frame-level Communication in Li-fi Networks. Paper presented at Sinteza 2025 - International Scientific Conference on Information Technology, Computer Science, and Data Science. doi:10.15308/Sinteza-2026-20-26