This article presents an overview of optical wireless (OW) communication systems that
operate both in the short-(personal and indoor systems) and the long-range (outdoor and …

This paper contains a review of technologies, theoretical studies, and experimental field
trials for optical communications from and to high-altitude platforms (HAPs). We discuss the …

Free-space optical (FSO) transmission systems enable high-speed communication with
relatively small deployment costs. However, FSO suffers a critical disadvantage, namely …

Feature Issue on Optical Access Networks (OAN) We review the progress in optical wireless
communication networks for first-and last-mile broadband access. The link budget is …

An enhanced transmission is presented in a multiple‐input‐multiple‐output (MIMO) dense‐
wavelength division multiplexed (DWDM) free‐space‐optical (FSO) communication link …

We investigate the effects of link parameters and the channel correlation coefficient on the
detection threshold, Q-factor, and bit-error-rate (BER) of a free-space optical system …

Error control coded M‐ary pulse position modulation (PPM) can be used over free space
optical links to mitigate the atmospheric attenuations and the turbulence induced fading. In …

Free-space optical communications systems in the atmosphere, based on intensity
modulation and direct detection, are heavily affected by fading caused by turbulence cells of …

We present and analyze a novel fade mitigation technique that is applicable on outdoor
optical wireless systems. Our key idea is to utilize the nonlinear power-dependent gain …

Free-space optical (FSO) communication links are susceptible to a tremendous amount of
variability and offer a real challenge for efficient, robust system design. Whether changes in …