Closed-form BER expression for FSO links with transmit laser selection over exponential atmospheric turbulence channels

Abstract

An exact closed-form expression for the average bit error rate (BER) of multiple-input-single-output free-space optical (FSO) communication systems with intensity modulation and direct detection using selection transmit diversity over strong atmospheric turbulence channels is derived. Assuming channel side information (CSI) at the transmitter and receiver, the transmit diversity technique based on the selection of the optical path with a greater value of scintillation has shown to be able to extract full diversity, outperforming other alternatives in which CSI at the transmitter is not considered. © 2009 The Institution of Engineering and Technology.

Publication
Electronics Letters
Beatriz del Castillo-Vázquez
Beatriz del Castillo-Vázquez
Associate Professor of Telecommunications Engineering

Associate Professor at the University of Málaga working on wireless optical communications, free-space optical links, underwater optical wireless communications, optical channel modelling and system-level performance analysis.

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.