Li-Fi Technology for Transmitting Data in Hospital Environments
Toha Ardi Nugraha, Yudhi Ardiyanto
Abstract
Wireless communication implemented in hospital environments is used to enhance convenience for patients and caregivers. However, there is always the risk of disturbance from electromagnetic waves and interference toward the precision medical device. Therefore, this paper simulates an emerging light fidelity (Li-Fi) technology in hospital environments using a light-emitting diode (LED). In this paper, we simulate the Li-Fi with three types of transmission powers, two angles of the LED lamps, and the impact of the distances between LED lamps in the transmitter parts and photodetectors (PDs) in the receiver parts. This paper considers two sizes of the incidence angle (β) and the irradiance angle (α). The simulations also implement interference mitigation using Channel Inversion Precoding (CIP). The simulations show the effectiveness of the proposed scenario-based CIP in terms of the data rate compared to the conventional implementations of the Li-Fi transmissions.