Characteristics of Optical Channel for Underwater Optical Wireless Communication System

摘要

To understand an underwater optical communication, it is necessary to describe the optical path of the light underwater and the refractive index of water. In the present work the receiver signal power underwater has been calculated using free space optical wireless communication formula. This procedure has been used to calculate the link margin, data rate as a function of the distance link. Types of water have been taken in the consideration. Our results show that the signal to noise ratio most parameter in communication systems in the distance link, particularly for the refractive index n ≤ 1.4. The data rate, signal to noise ratio decreases as the refractive index of water and distance link increases.