title: Transmission and reception of Quad-Carrier QPSK-OFDM signal with blind equalization and overhead-free operation.
abstract: Quad-Carrier Quadrature Phase Shift Keyed orthogonal frequency division multiplexing (QPSK-OFDM) signal transmission and reception is successfully demonstrated with blind equalization like a 25-ary quadrature amplitude modulation (25-QAM) signal with cascaded multi-modulus algorithm (CMMA) equalization. The phase recovery can be realized with simple Viterbi algorithm and the frequency offset estimation (FOE) should be done with 25-QAM signal before 4-point fast Fourier transform (FFT). 48-Gbit/s Quad-Carrier QPSK-OFDM signal is successfully transmitted over 80-km SMF-28 without penalty.
authors: Fan
authors: F
authors: Li
authors: Junwen
authors: J
authors: Zhang
authors: Zizheng
authors: Z
authors: Cao
authors: Jianjun
authors: J
authors: Yu
authors: Xinying
authors: X
authors: Li
authors: Lin
authors: L
authors: Chen
authors: Yan
authors: Y
authors: Xia
authors: Yufei
authors: Y
authors: Chen