S. T. Le, M. E. McCarthy, S. K. Turitsyn. Optimized hybrid QPSK/8QAM for CO-OFDM transmissions. In 9th International Symposium on Communication Systems, Networks & Digital Signal Processing, CSNDSP 2014, Manchester, UK, July 23-25, 2014. pages 763-766, IEEE, 2014. [doi]
Abstract is missing.