Path-loss of violet-light-based non-line-of-sight underwater optical communication

Non-line-of-sight (NLOS) underwater wireless optical communication (UWOC) can realize communication by scattering small particles in water, which has unique advantages in turbid seawater environments and can be used as an effective supplement to line-of-sight UWOC. This paper combined the Monte Carlo method with the transmission channel multiple scattering model for NLOS UWOC. Simulated the transmission channel path loss under different channel conditions and analyzed the factors affecting the laser underwater transmission loss. The NLOS UWOC experiments of 405 nm purple light and 488 nm blue light in different types of seawater environments were carried out. The experimental results under the same conditions were compared to simulation results, the trend of experimental results were consistent with the simulation results, which verified the correctness of the model. The research results were significant for improving the simulation model.

Automated summary

This paper investigates the simulation and experiment of non-line-of-sight underwater wireless optical communication (NLOS UWOC), which utilizes scattering of small particles for communication in turbid seawater. The experimental results match the simulation results, verifying the correctness of the model.