Design and Implementation of a Li-Fi Enabled Computer Laboratory: Architecture, Performance, and Pedagogical Integration

Abstract

Introduction

LiFi (Light Fidelity) offers up to 1,000 times more bandwidth than radio waves, enabling faster, more secure wireless communication. It is ideal for sensitive environments due to the absence of radio frequency emissions. This paper presents a LiFi-based design for peer-to-peer communication in labs and classrooms.

Objectives

• Develop a secure, high-speed LiFi system for peer-to-peer communication.


• Test performance under varying light intensities.


• Ensure low error rates and end-to-end encryption.

Methods

An LED and photodiode setup were used with microcontrollers for data transmission. Experiments were conducted under different lighting conditions. Data speed, error rate, and signal strength were measured, and encryption was applied for secure communication.

Results

• Achieved reliable data transfer with low error rates.


• Higher light intensity improved signal quality.


• Encryption had minimal impact on speed.


• Ambient light affected performance.

Conclusions

LiFi is a viable solution for secure, high-speed communication in controlled environments. With proper setup, it can effectively replace traditional wireless systems in labs and classrooms.