Reducing the peak-to-average power ratio with companding transform coding in 60 GHz OFDM-ROF systems

Author

Li, Fan ; Yu, Jianjun ; Cao, Zizheng ; Xiao, Jiangnan ; Chen, Hongxian ; Chen, Lin

Author_Institution

Key Lab. for Micro/Nano Optoelectron. Devices of the Minist. of Educ., Hunan Univ., Changsha, China

Volume

4

Issue

3

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

202

Lastpage

209

Abstract

To reduce the nonlinear distortion in electrical devices, optical modulators, and transmission fiber, we adopt a companding transform coding technique to reduce the peak-to-average power ratio of the orthogonal frequency division multiplexing (OFDM) signal in an OFDM radio-over-fiber system. By adopting this technique, our experimental results show that the receiver sensitivity at a bit error ratio of 1 × 10^-3 for a 2.98 Gb/s OFDM signal carried on a 60 GHz optical millimeter-wave after 50 km of standard single-mode fiber transmission is improved by about 0.6, 2.2, and 3.8 dB at launch powers of 0, 6, and 12 dBm, respectively.

Keywords

OFDM modulation; error statistics; nonlinear distortion; optical receivers; radio-over-fibre; transform coding; OFDM radio-over-fiber system; OFDM signal; OFDM-ROF systems; bit error ratio; bit rate 2.98 Gbit/s; companding transform coding technique; electrical devices; frequency 60 GHz; nonlinear distortion; optical millimeter-wave; optical modulators; orthogonal frequency division multiplexing signal; peak-to-average power ratio; receiver sensitivity; standard single-mode fiber transmission; transmission fiber; Encoding; Nonlinear optics; Optical modulation; Optical receivers; Optical sensors; Peak to average power ratio; Companding transform (CT); Nonlinear distortion; Nonlinear effects; OFDM-ROF; Peak-to-average power ratio (PAPR);

fLanguage

English

Journal_Title

Optical Communications and Networking, IEEE/OSA Journal of

Publisher

ieee

ISSN

1943-0620

Type

jour

DOI

10.1364/JOCN.4.000202

Filename

6171944