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A 16PSK-OFDM-FSO Communication System under Complex Weather Conditions

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DOI: 10.4236/opj.2016.68B022    1,214 Downloads   1,694 Views Citations


Free Space Optical (FSO) communication is one of the most promising access methods. But, the different weather conditions will affect the transceiver performance. In this paper, we build a FSO communication system with 16-ary phase shift key-orthogonal frequency division multiplexing (16PSK-OFDM) downstream signals. We analyze the transmission performance of 16PSK-OFDM optical signals under five different weather conditions (sunny, light rain, moderate rain, snow, and fog). The optical spectral diagrams, constellation diagrams, and bit error rate (BER) of the received signals are simulation measured and analyzed. The results show that the constellation diagram under sunny condition is clear, and the value of BER is about 10?4.2 after 16PSK-OFDM optical signals pass through 500 m FSO link. Note that, the constellation points are dispersed under the other weather conditions.

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Zhou, J. , Shao, Y. , Wang, Z. , Li, C. , Zhou, Y. and Ma, W. (2016) A 16PSK-OFDM-FSO Communication System under Complex Weather Conditions. Optics and Photonics Journal, 6, 131-135. doi: 10.4236/opj.2016.68B022.

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