Progress Towards a Virtual Quadrant Receiver for 4-ary Pulse Position Modulation/Optical Code Division Multiple Access (4-ary PPM/O-CDMA) Networks

We described the concept, numerical simulation, and physical implementation of a virtual quadrant receiver for 4-ary PPM/O-CDMA. The simulations show the joint impact of MAI and OBI on the receiver output (constellation plot). The receiver operation was demonstrated with a physical implementation that can be ultimately integrated as a PLC-based device.