Fig. 4
From: Reconfigurable MIMO-based self-powered battery-less light communication system
Quadrant decoding configuration and results. a Picture of the large receiver plane and its steps for PD quadrant recombination with four PDs going into reverse biasing and five PDs into series configuration. b Laser path and PDs output due to the laser path starting from PD1 and finishing in PD4. c SNR and BER of the OFDM signal versus time from each PD measured simultaneously. d The quadrants that can be configured using the system with a maximum simultaneous configuration of 4 PDs
