Abstract
Wireless technology is quickly developing, and is
playing an increasing role in the lives of people throughout the
world. Radio frequency communication is the current
dominating limited wireless technology that is used in
communication industry. Visible Light Communication (VLC) is
developing and promising to overcome problems faced in RF
communications due to its advantages such as license free and
unlimited bandwidth .This project focuses on comparing
different modulation schemes for VLC technology, which chosen
to be Frequency Shift Keying (FSK) and On-Off Keying (OOK).
The physical design for both modulations had to be conducted to
perform the comparison. The design involved the receiver and
the transmitter circuits. The main properties to be analyzed are
the cost, bit error rate and the distance to see which modulation
performs better. Due to many components used in FSK
modulation, more money was spent compared to OOK
modulation. Additionally, OOK modulation outperformed the
FSK modulation in terms of the curve of bit error rate versus the
distance as shown in this paper.