Design and Analysis of Light Fidelity Network for Indoor Wireless Connectivity

Abstract

In the world of 20 billion connected devices, the data centers are just a drop in the ocean for the total energy consumption compared to the wireless access that is required for them. In the past years, it never became possible to obtain unprecedented bandwidth, to keep our data safe and repurpose the energy that we use for illumination to provide wireless communication, but now in the modern era, Light Fidelity (Li-Fi) can offer these things and much more. LiFi points towards high-speed, bi-directional, and networked wireless communications with the assistance of light. It offers users an almost similar experience as traditional wireless communications except using the light spectrum. With LiFi, a world connected by light has become an unbelievable reality. The design and functionality of the previous models are targeted to provide wireless communication but, to prove better quality results, an entire system is checked, and a new model is put forward. In this research study, the entire system is examined and tested on different values with various transmitting angles, data rates, distances, frequencies, the responsivity of PIN diodes to ensure the accuracy and best possible results are achieved. Testing of numerous ambient sources and modulation schemes aided in the success of this advanced technology. Different filters, transmitted pulses, modulation schemes, and angles are also changed and analyzed to study the behavior of LiFi thoroughly, which helped to attain a high-quality factor (Q-factor). The objectives of decline in Bit error rate (BER), increase in data rate, and quality signal are successfully achieved in the conclusion of this model. The research article is not only optimized but also has advanced features which mainly helped in gaining maximum results and goals behind this project.

Performance Analysis of Indoor Light Fidelity Technology Propagation Using Fixed and Movable LED Panels

“…The development of Li-Fi system design has been conducted with regard to the design and functionality of indoor Li-Fi to provide a better wireless communication model [12]. To achieve the best results and accuracy, this study examined and tested an entire system at different values with various parameters.…”

“…These parameters are various transmitting angles, data rates, distances, frequencies, the responsiveness of PIN diodes, different filters, detector areas, transmitted pulses, and modulation schemes. Using LP Chebysev filter on the receiving side produces a minimum BER value of 10 -47 [12]. Additionally, the increase in data rate and the angle of the transmitter have significant effects on increasing the value of BER.…”

“…Furthermore, Li-Fi technology uses an LED panel system categorized into fixed LP and movable LP, which provides network connectivity coverage and meets different line of sight (LOS) conditions for each emitted LED panel [1]. In addition, a model and design of Li-Fi technology that utilizes the amplifier and filtering at the receiver side have shown an increased quality of the received signal [12].…”

“…Information transmission parameters such as source and channel coding techniques and the direction of transmission affect the spectrum of the received signal [1,2,[12][13][14]. Furthermore, the reception angle, the reception area (field of view [FOV]), and the detector area are the parameters that determine signal processing in the photodetector [2,13,15].…”

“…Therefore, this research comprehensively proposes a Li-Fi technology system model using fixed and movable LED panels by placing an optical rectangle filter on the photodetector and placing a transimpedance amplifier (TIA) and a low-pass filter on the receiver side as system development for conventional indoor Li-Fi [12].…”