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Background Orthogonal frequency division multiplexing has been regarded as one of the promising technologies for the optical access systems application. However, high peak-to-average power ratio will cause the signal distortion and enable the used amplifier to operate in nonlinear section. Methods In this paper, a modified selected mapping technique is introduced for reducing the peak-to-average...
We experimentally demonstrated the seamless integration of 108-Gb/s 80-km SMF-28 transmission and 1-m 100-GHz wireless delivery over a 2×2 MIMO wireless link adopting PDMQPSK modulation, with BER less than pre-FEC limit of 3.8×10-3.
We experimentally demonstrate an 8 × 4.65 Gb/s OFDM RoF system with TDP-based channel estimation over 40 km fiber link and 60 GHz wireless link. Compared with TDA-based method, the overhead can be reduced and 1.8 dB improvement is obtained at BER of 3.8 × 10-3.
We experimentally demonstrated a 575-Mb/s downstream and 300-Mb/s upstream bi-directional SCM-WDM visible light communication system based on RGB-LED. BERs in all channels are under pre-FEC limit of 3.8×10-3 after 66-cm free-space transmission.
A novel digital signal processing (DSP) scheme for quadrature duobinary (QDB) spectrum shaped polarization multiplexed quadrature phase shift keying (PM-QPSK) based on multi-modulus blind equalizations (MMBE) is proposed and demonstrated with both simulation and experimental results. The key algorithms for this novel digital signal processing scheme include the cascaded multi-modulus algorithm (CMMA)...
It is experimentally demonstrated the DGD, GVD tolerance and receiver input power dynamic range can be improved by optimizing power imbalance in a 42.7 Gb/s partial-DPSK receiver. The optimized power ratio at different optical filter bandwidth is studied.
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