Optical Communication
Optical Wireless Communication (OWC)
Channel Modeling
Challenges:
- Beam divergence: Geometric loss
- Building sway and tracking error: Misalignment loss
- Multi-path propagation: Delay dispersion
- Wind turbulences: Beam wander
- Temperature and pressure changes: Atmospheric turbulence
System Design and Performance Analysis
Challenges:
- Tracking and pointing mechanisms
- Optimal phase shift profile across the IRS
- Optimal positioning of the IRS and UAV
- IRS sharing protocols to connect multiple FSO links
- Equalization techniques to mitigate delay dispersion
Experimental Setup
Laboratory testbed for optical IRS:
- Build micro-mirror array-based IRS
- Build spatial light modulator-based IRS
- Investigate hardware imperfections
- Investigate multi-link transmission
Micro-mirror from front and back