Title :
Reduction of Intersubcarrier Interference and Frequency-Selective Fading in OFDM-ROF Systems
Author :
Cao, Zizheng ; Yu, Jianjun ; Xia, Minmin ; Tang, Qi ; Gao, Yang ; Wang, Wenpei ; Chen, Lin
Author_Institution :
Key Lab. for Micro/Nano Opto-Electron. Devices of Minist. of Educ., Hunan Univ., Changsha, China
Abstract :
This paper theoretically investigates the signal degradation induced by intersubcarrier interference and frequency-selective fading in orthogonal frequency-division-multiplexing radio-over-fiber systems. Turbo codes and bit interleaver technologies are proposed to effectively mitigate unbalanced error distribution because of intersubcarrier interference and frequency-selective fading. Experimental results show that the receiver sensitivities are improved as far as 5 dB after 50-km SMF-28 transmission for 6.25-Gb/s wireless signals on optical generated 60-GHz carrier.
Keywords :
OFDM modulation; fading channels; interference (signal); optical fibre communication; turbo codes; OFDM-ROF systems; bit interleaver technologies; bit rate 6.25 Gbit/s; frequency 60 GHz; frequency-selective fading; intersubcarrier interference; optical generated carrier; orthogonal frequency-division-multiplexing radio-over-fiber systems; receiver sensitivities; signal degradation; turbo codes; unbalanced error distribution; wireless signals; Coding; interleaving; optical access network; orthogonal frequency-division-multiplexing (OFDM); radio over fiber (ROF); receiver sensitivity;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2051416
