Title :
Direct-Detection Optical OFDM Transmission System With Pre-Emphasis Technique
Author :
Gao, Yang ; Yu, Jianjun ; Xiao, Jiangnan ; Cao, Zizheng ; Li, Fan ; Chen, Lin
Author_Institution :
Hunan Univ., Changsha, China
fDate :
7/15/2011 12:00:00 AM
Abstract :
We investigated the effect of subcarriers-to-subcarriers mixing interference and frequency fading in direct-detection (DD) optical orthogonal frequency-division multiplexing (OFDM) system. We also proposed and experimentally demonstrated a novel DD OFDM transmission scheme with pre-emphasis technique. By pre-emphasizing the power of the OFDM subcarriers at the high frequency, the received sensitivity at our experiment was improved about 2 dB at a bit error rate of 1 × 10-4 after 100-km SMF-28 transmission compared to the regular one without this technique.
Keywords :
OFDM modulation; error statistics; interference suppression; light transmission; optical fibre networks; OFDM; bit error rate; direct detection; frequency fading; optical transmission system; orthogonal frequency-division multiplexing; pre-emphasis technique; subcarriers-to-subcarriers mixing interference; OFDM; Optical fiber sensors; Optical fibers; Optical filters; Optical receivers; Direct-detection (DD); optical fiber communication; orthogonal frequency-division multiplexing (OFDM); pre-emphasis;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2154299
