Rolling MIMO-OFDM for Optical Camera Communication System

Orthogonal Frequency-Division Multiplexing (OFDM) is different from a single-carrier modulation, which is a digital multi-carrier modulation scheme. It has proceeded in broadband wireless or broadband wired communication as an effective settlement with Inter-Symbol Interference which occurred due to a multipath fading. In the Light Fidelity Technique, the OFDM modulation is well-known and widely employed; however, the using of OFDM modulation with Optical Camera Communication is difficult to employ. To increase data rate, the researchers consider to use multi-LED to transmit data but the effect among LEDs needs to consider. This paper presents the Multiple Input Multiple Output OFDM OCC system according to the effect of the rolling shutter. The proposed scheme according to OFDM deploys a rolling-shutter effect to transmit signal at a high rate with more than 2 LEDs. Based on the theoretical of the Rolling OFDM scheme, we propose a novel scheme architecture with technical details of the system architecture.