We propose an optical receiver that reduces inter-cell interference (ICI) for visible light communication, by utilizing a differential detection system. The differential optical receiver detects a signal from in-band overlapping signals, and reduces any unwanted interference from adjacent cells. We verified the performance of the proposed system experimentally and compared it with a carrier-Allocation system, which is a method used in cell planning for reducing ICI. The proposed scheme allows flexible cell planning, regardless of the number of interference channels and of the frequency band of adjacent cells.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering