  Offering a high data rate to users inside the cabin is attractive for the
aircraft building companies. This paper presents an optical wireless system
that uses visible light for transmitting data. The reading light for each seat
is used as a transmitter in this work to offer high data rates. Red, yellow,
green, and blue (RYGB) laser diode (LD) are utilised in each reading light to
obtain a high modulation bandwidth. Two types of reading lights based on angle
diversity transmitter (ADT) units are utilised in this paper for illumination
and communication. Additionally, two kinds of optical receivers are used: four
branches angle diversity receiver (ADR) and 25 pixels imaging receiver (ImR).
The delay spread and the signal to interference and noise ratio (SINR) are
evaluated. The proposed system can offer high data rates up to 22.8 Gbps for
each user by using simple on-off-keying (OOK) modulation.
