A Noise Mitigation Approach for VLC Systems

Antonio Costanzo (1) , Valeria Loscrì (1) , Mauro Biagi (2)

1 FUN - Self-organizing Future Ubiquitous Network
2 UNIROMA - Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome]

Visible Light Communication (VLC) is based on the dual use of the illumination infrastructure for wireless data communication. The major interest on this communication technology lies on its specific features to be a secure, cost-effective wireless technology. Recently, this technology has gained an important role as potential candidate for complementing traditional RF communication systems. Anyway a major issue for the VLC development is a deep comprehension of the noise and its impact on the received signal at the receiver. In this work, we present a simple but effective approach to analyze the noise and drastically reduce it through a signal processing method. In order to validate the effectiveness of this analytical approach, we have developed an USRP-based testbed. Experimental results have been carried out by evaluating the symbol error rate (SER) and show the effectiveness of the noise mitigation approach in different interference conditions and at different distance between the transmitter and the receiver.

Mots clés: VLC; USRP; PPM; noise

Domaines: Réseaux et télécommunications [cs.NI]; Optique / photonique; Traitement du signal et de l'image [eess.SP]

Antonio Costanzo, Valeria Loscrì, Mauro Biagi. A Noise Mitigation Approach for VLC Systems. Global Lifi Congress, Jun 2019, Paris, France. ⟨hal-02082236⟩