Publisher : Institude of Korean Electrical and Electronics Engineers
DOI : 10.7471/ikeee.2016.20.1.026
Title & Authors
Degradation of OFDM Signal Performance by Chromatic Dispersion in a Several 10 Gbit/s Mobile Front-haul Link Won, Yong-Yuk; Seo, Dongsun;
In this paper, an inter-orthogonal frequency division multiplexing (OFDM) sub-carrier distortion due to fiber chromatic dispersion is investigated. The fiber chromatic dispersion induces phase difference among OFDM sub-carriers, resulting in non-symmetric peak to average power ratio (PAPR) inducing inter-OFDM distortion. Experiments to confirm the fiber dispersion are performed in a direct-detection optical front-haul link. Quadrature phase shift keying (QPSK) encoded OFDM symbols at 25 Gbit/s are transmitted over 100 km fiber and the resulting error vector magnitude (EVM) of 40 % is observed.
dispersion;mobile front-haul;orthogonal frequency division multiplexing;peak to average power ratio;quadrature amplitude modulation;
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