Comparison of improved OOK formats with pulse-position modulation in indoor unguided optical links at high bit rates

Antonio García-Zambrana, Antonio Puerta-Notario
January 1999
Cite DOI URL

Abstract

In this paper, on-off keying (OOK) formats with different pulse shapes and pulse-position modulation (4PPM) for indoor unguided optical links and different channel conditions are compared in terms of performance and required complexity, so as to minimize both intersymbol interference (ISI), induced by multipath propagation, and phase distortion effects, due to the interference suppression receiver filter. By means of a direct application of the correlation operator and the corresponding bit-error rate (BER) computation, we conclude that OOK format with Gaussian pulses and duty cycle lower than 50% provides quite good performances compared with the 4PPM scheme, frequently proposed in reported works but with major implementation complexity. © 1999 IEEE.

Type
Conference paper
Publication
IEEE Wireless Communications and Networking Conference, WCNC
Amplitude Shift Keying Echo Suppression Intersymbol Interference Light Modulation Optical Fiber Communication Optical Links Optical Signal Processing Phase Shift Keying Pulse Code Modulation Links Signal Modulation Channel Conditions Distortion Effects High Bit Rates Multipath On/Off-Keying Optical- Performance Phase Distortions Pulse-Shape Pulse Position Modulation
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.