Shenjie Huang

University of Edinburgh, IDCOM

Free-Space Optical Communication in the Presence of Atmospheric Angular Spread

Abstract: In this talk, different optical detection schemes are investigated in the presence of turbulence-induced effects. Both log-amplitude fluctuations and angle-of-arrival (AOA) fluctuations introduced by atmospheric turbulence are taken into account in channel modelling. The impact of the angular spread can be thus determined based on the performance of the FSO receivers. In order to mitigate the impairments caused by AOA fluctuations, some techniques are expected to be applied. I will show that choosing optimal receiver field-of-view (FOV) is an effective technique to improve the performance. Even better performance can be achieved by employing multiple receivers. Coherent detection is treated as another technique to get improved performance. The benefits of ideal coherent detection over direct detection in the presence of AOA fluctuations will also be presented.

Bio: Shenjie Huang received his MSc degree from the University of Edinburgh in 2014. He is currently working towards the Ph.D. degree in the Institute for Digital Communications, the University of Edinburgh. His current research interest is in free-space optical communications.