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

Volume

28

Issue

16

fYear

2010

Firstpage

2423

Lastpage

2429

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2010.2051416

Filename

5482172