In this talk, we will discuss two wireless optical communication scenarios: (1) Free Space Optic (FSO) communication through adverse weather events such as fog and (2) underwater wireless optical communication. Both communication scenarios suffer from the scattering and attenuation effects due to the presence of random scattering. We will discuss the electromagnetic model for wave propagation under these conditions based on the vector radiative transfer equation. By using the model, we can evaluate the communication performance in terms of bit-error-rate. Improvement methods will also be discussed including equalization using minimum mean square error and channel estimation techniques.
Sermsak Jaruwatanadilok is currently a research assistant professor at the Department of Electrical Engineering, University of Washington, Seattle. He received the B.E. degree in telecommunication engineering from King Mongkut’s Institute of Technology, Ladkrabang, Thailand, in 1994, the M.S. degree in electrical engineering from Texas A&M University, College Station, in 1997, and the Ph.D. degree in electrical engineering from the University of Washington, Seattle, in 2003. His research interests are wave propagation, imaging, and communication in random media, as well as optical and microwave remote sensing.