Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

@article{195935,
        author = {Mr. Rakesh Kumar and Anurag Pal and Chahat Malik},
        title = {Li-Fi Data Transfer System (Li-Fi Based Home Navigation)},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {1975-1978},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=195935},
        abstract = {Li-Fi (Light Fidelity) is an emerging wireless communication technology that utilizes visible light for high-speed data transmission. Unlike conventional Wi-Fi, which operates on radio frequency (RF) signals, Li-Fi uses the visible light spectrum (400–800 Hz) to transmit binary data through rapid modulation of LED light sources. This project presents the design and implementation of a Li-Fi based home navigation system intended to assist visually impaired individuals in navigating indoor environments safely and independently.
Posed system is minimal. The prototype achieved a transmission range of approximately 7–8 meters under normal lighting conditions.
To address common Li-Fi limitations such as line-of- sight dependency and interference from other light sources, filters and adjustable LED positioning techniques are incorporated. The system demonstrates stable performance in both dark and moderately lit environments, provided a clear line of sight is maintained.},
        keywords = {Li-Fi Technology, Visible Light Communication, Indoor Navigation System, Microcontroller-Based Implementation, Assistive Technology for Visually Impaired},
        month = {April},
        }