We propose an uplink DCT based 4ASK-OFDM scheme for the next-generation PON to improve the spectrum efficiency.The SNR penalty of the proposed scheme is 1.8dB smaller than that of the conventional QPSK-OFDM system at FEC limit.
© 2013 OSA
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation
(060.4510) Fiber optics and optical communications : Optical communications
Y. Li, Y. Li, Y. Qiao, H. Liu, and Y. Ji, "Study on DCT-based Modulation Scheme utilizing 4-ASK-OFDM in Next-Generation PON," in Asia Communications and Photonics Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper AF2F.9.
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