Time Jitter, Turbulence and Chromatic Dispersion in Underwater Optical Wireless Links

Abstract

The performance of an underwater optical wireless communication link is investigated by taking into account—for the first time and to the best of our knowledge—the simultaneous influence of the chromatic dispersion, the time jitter and the turbulence effects, by assuming chirped longitudinal Gaussian pulse propagation as information carriers. The estimation procedure is presented and a novel probability density function is extracted in order to describe the irradiance fluctuations at the receiver side. Furthermore, the availability of the link is investigated by means of its probability of fade and various numerical results are presented using typical parameters for the underwater optical wireless communication systems.

Outage Probability and BER Estimation for FSO Links with Truncated Normal Time Jitter and Longitudinal Gaussian Pulse Propagation in Dispersive Media

“…where x modulates the signal bit, as "0" or "1", s denotes the instantaneous beam intensity, η is the effective photo-current conversion ratio of the receiver, I represents the normalized signal irradiance, and n is the additive white Gaussian noise (AWGN), of zero mean value and variance equal to N 0 /2, with N 0 being the noise power density [34].…”