Angle of arrival modeling for underwater wireless optical communication systems: [extended abstract]

In underwater wireless optical communications (UWOC), the photons captured by the detector have different angle-of-arrival (AOA) due to the scattering effect especially in turbid seawater. Thus the received photons suffer angle spread which follows a AOA distribution. The AOA distribution has been analyzed theoretically by some prior works only considering non-scattering and single scattering components and omitting multiple scattering component. In this work, we present a closed-form expression to model the AOA distribution considering all these components. Numerical results have shown that the proposed model can fit well with Monte Carlo simulations in turbid water.