Performance study of ACO-OFDM and DCO OFDM in optical camera communication system

In this paper, two forms of optical OFDM (orthogonal frequency division multiplexing) have been investigated that are suitable for optical camera communication systems. The distinction is rendered by evaluating bit error rate versus signal to noise ratio of optical camera communication systems but, it is power effective for higher SNR values. This was because the DC bias used in DCO-OFDM is unreliable as for the optical capacity, whereas utilizing just half the subcarriers to transport data in ACO-OFDM in terms of bandwidth is unsuccessful. In addition to that, this research will be focused on optical camera communication system and implementation in the case of use for optical OFDM, which produces the clipping noise. However, they will gain SNR overall if we choose a good clipping factor. We found that ACO OFDM is better because of lower bit loading. This research explores the difference between the 2D ACO-OFDM and the 2D DCO-OFDM from the perspective of implementation. This enables us to test all the performance without any required hardware configuration. In this paper, the BER versus SNR ratio analysis for two optical wireless communication systems has been studied for different clipping factors: 0.8, 1, and 2. The BER performance of the two forms of optical OFDM. The single-carrier modulation solution is often contrasted to show the robust efficiency of the proposed method. This system has been implemented using Lab-view 2019 software.