Rate-adaptive modulation techniques for indoor wireless infrared links at bit rates of wide dynamic range

Abstract

In this paper, a new and simple rate-adaptive transmission scheme for indoor unguided optical links is proposed. This scheme is based on the use of variable silence periods, allowing the increase of the peak-average optical power ratio, which is a favorable characteristic in wireless infrared communications using intensity modulation with direct detection. Here, it is applied to links operating at high bit rate initially, providing a signaling rate with a wide dynamic range and requiring a very low-complexity implementation. The authors compare this scheme in terms of performance and complexity with the scheme proposed by the IrDA, which is based on repetition coding and pulse-position modulation.

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.