Browsing by Author "Chen, G. H."

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Mitigation of LED Nonlinearity Using Adaptive Equalization for Visible Light Communications
(2017-01-01)
Hsu, C. W.
;
Hsu, Y.
;
Chen, G. H.
;
Wei, L. Y.
;
Chow, C. W.
We demonstrate using bit-loading orthogonal-frequency-division-multiplexing (OFDM) and adaptive Volterra equalization to mitigate the light-emitting-diode (LED) nonlinearity; hence the data rate of LED based visible-light-communication (VLC) can be increased to > 700 Mbit/s.
Transmission Performance Improvement of PAM-4 Signal Direct-Detected by Ge-Si Photodiode using Volterra Equalization
(2017-01-01)
Hsu, Y.
;
Chuang, C. Y.
;
Chen, G. H.
;
Chang, Y. C.
;
Wu, X.
We demonstrate a 4-level pulse-amplitude-modulation (PANT-4) transmission system direct-detected by germanium-silicon (Ge-Si) photodiode (PD). Volterra-equalization is used to compensate signal distortion and 40-Gibt/s and 50-Gbit/s PANT-4 signals after 20-km and 10-km fiber transmissions are achieved.