Abstract
In this paper, pulse-position modulation (PPM) for indoor unguided optical links are compared in terms of performances and required complexity. By means of a direct application of the correlation operator and the corresponding bit-error rate (BER) computation, we conclude that Gaussian pulse-position modulation (GPPM) provides better performances than classic PPM schemes, so as to minimize both intersymbol interference (ISI), induced by multipath propagation, and phase distortion effects, due to interference suppression receiver filter.
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
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.