High-speed indoor visible light communication system employing laser diodes and angle diversity receivers

Author

Hussein, Ahmed Taha ; Elmirghani, Jaafar M. H.

Author_Institution

Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK

fYear

2015

Firstpage

1

Lastpage

6

Abstract

The two main challenges facing high data rate visible light communication (VLC) are the low modulation bandwidth of the current transmitters (i.e. light emitting diodes, LEDs) and the inter symbol interference (ISI) caused by multipath propagation. In this paper, we evaluate laser diodes (LDs) as a source of illumination and communication instead of LEDs for a VLC system in conjunction with an angle diversity receiver (ADR). The main advantage of using LDs is their high modulation bandwidth that enables communication at data rates of multi gigabits per second for VLC when using a suitable receiver, such as an ADR, which mitigates the ISI. Our proposed system uses simple on-off keying (OOK) modulation, and it is able to provide data rates of 5 Gbps and a bit-error-rate (BER) of 10^-6 in the worst case scenario.

Keywords

amplitude shift keying; diversity reception; error statistics; intersymbol interference; optical communication; semiconductor lasers; ADR; ISI; LD; OOK modulation; VLC; angle diversity receiver; bit-error-rate; current transmitter; high-speed indoor visible light communication system; illumination; intersymbol interference; laser diode; modulation bandwidth; multipath propagation; on-off keying modulation; Bandwidth; Delays; Light emitting diodes; Modulation; Receivers; Reflection; Signal to noise ratio; angle diversity receiver; laser diodes; multi gigabit VLC;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2015 17th International Conference on

Conference_Location

Budapest

Type

conf

DOI

10.1109/ICTON.2015.7193304

Filename

7193304