1. Design Visible Light Communication (VLC) system using OOK-RZ/NRZ modulation for the Photonic Laboratory, Faculty of Electrical Engineering. Suppose the dimension of the lab is (6 × 4 × 3) 𝑚 for the length, width, and height respectively. The designer should carefully determine the suitable number of LED lamps to avoid interference, as well as provide acceptable communication and illumination performance.

Using MATLAB (Coding or Simulink) as a simulation platform, evaluate the VLC system in terms of illumination level, received power, SNR, and BER. The cost estimation of implementing this project is also required. (Hint: The components that are available in your storeroom are stated in Table 1).

Table 1: Design parameters and components characteristics available.

Parameters Value

Room (Length x Width x Height) 6 × 4 × 3

Height level of LED lamps (h)

3 m

Height level of device/user

0.85 m

Photodetector effective area

1 𝑐𝑚2

Photodetector responsivity

0.54 A/W

Walls reflectivity

0.86

Floor reflectivity Walls

0.34

LED lamp semi-angle

70°

LED chip

20 mW

Field of view

60°

Bit Rate

30 Mbps