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The Impact of the Combined 8-QAM and QPSK Subcarrier Modulation for Coherent Optical OFDM
8-QAM QPSK Subcarrier Modulation OFDM
2015/5/15
We investigated the optimized signal condition of the combined 8-QAM and QPSK subcarrier modulation for optical OFDM. The performance improvement was confirmed by WDM transmission experiments with the...