Performance evaluation of RZ signaling in indoor unguided optical links operating beyond 50 Mbps

Abstract

We examine the performance of simple modulation, techniques, such as the basic, baseband pulse amplitude modulation (PAM), in indoor unguided optical links, in order to minimize both intersymbol interference (ISI), induced by multipath propagation, and phase distortion effects, due to interference suppression receiver filter. This study has been realized by means of a direct application of the correlation operator, according to the idea of minimum-distance receiver design. We conclude that on-off keying (OOK) with return-to-zero (RZ) pulses provides better performances than other signaling formats more frequently proposed in reported works, also considered in this study. Above conclusion is validated by corresponding bit-error rate (BER) computation.

Publication
IEEE Vehicular Technology Conference
Antonio García-Zambrana
Antonio García-Zambrana
Professor of Telecommunications Engineering

Professor at the University of Málaga working on wireless optical communications, free-space optical links, underwater optical wireless communications, visible light communications, and FPGA/RFSoC-based real-time prototyping.

Antonio Puerta-Notario
Antonio Puerta-Notario
Emeritus Professor / Senior Researcher

Emeritus Professor at the University of Málaga with a long-standing research activity in signal theory, optical wireless communications, visible light communications, free-space optical links and communication system modelling.