On impulse response for underwater wireless optical links

In this paper, we consider the temporal properties characterized by impulse response of underwater wireless optical communication (UWOC) links. Based on the Henyey-Greenstein model of scattering phase function, the impulse response has been obtained based on Monte Carlo simulations for turbid underwater environment such as coastal and harbor water. A closed-form expression of double Gamma function has been adopted to represent the simulated impulse response by curve fitting methods. Numerical results suggest that the double Gamma function fits well with the impulse response in turbid seawater.