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Comparison Between 2D DCO OFDM and 2D ACO OFDM Systems for Optical Camera Communication



The influence of changing clipping factors on optical wireless communication (OWC) systems that use orthogonal frequency multiplexing division (OFDM) is discussed in this article. In the present paper, several modulators are available for optical OFDM. A study is undertaken on the two current transmission systems with asymmetrical clipping as well as OFDM with direct current optical DCO OFDM. This investigation examines the comparison between two-dimensional ACO OFDM S2C and DCO OFDM S2C regarding the execution process. This allows us to evaluate all performances without the hardware structure. The selection of the clipped levels has significant effects on the performance of OCC systems. The BER performance (DCO-OFDM S2C OCC) is more efficient concerning the (ACO OFDM S2C OCC) approach for the bit error rate to10-4 requirement with the pixel SNR of nearly 18dB. The gain of 3 dB is because, like DCO-OFDM, ACO-OFDM S2C OCC utilizes just lower than the numbers of data carriers. (ACO OFDM S2C OCC system) reduces the PAPRs, at the cost of increasing the bit error rate BER and computations complexities. It shows that the more efficient the BER enhancement. The measurements of the BER for different modes of the OWC system were examined and various clipping factors of 2.9, 2.3, and 3.3. The proposed S2C OCC system was executed by the Lab-view program.


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Series Title
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Call Number
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Publisher International Journal of Computing and Digital Systems : Bahrain.,
Collation
005
Language
English
ISBN/ISSN
2210-142X
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NONE
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Edition
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Scopus Q3

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