Memory polynomial based adaptive predistortion for Radio over Fiber systems

Author

Cao, Gang ; Xu, Tiefeng ; Liu, Taijun ; Ye, Yan ; Lin, Hao ; Luo, Xiaojun ; Li, Liang

Author_Institution

Coll. of Inf. Sci. & Eng., Ningbo Univ., Ningbo, China

Volume

2

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, a measurement apparatus based Radio-over-Fiber system prototype, including a Vector Signal Generator (VSG), a semiconductor laser, a photodetector and a spectrum analyzer, is build to study the nonlinear effects of the RoF system, which is widely regarded as a promising technique for microcell applications of the future wireless networks. The memory polynomial nonlinear model is utilized to compensate the nonlinearities in the RoF system. A three carrier Wideband Code Division Multiple Access(WCDMA) signal is applied to this test platform. The experimental results illustrate that the predistorter can improve the Adjacent Channel Power Ratio (ACPR) more than 10-dB.

Keywords

code division multiple access; microcellular radio; optical communication equipment; photodetectors; radio-over-fibre; semiconductor lasers; signal generators; spectral analysers; wireless channels; RoF system; Vector Signal Generator; WCDMA signal; adjacent channel power ratio; memory polynomial based adaptive predistortion; memory polynomial nonlinear model; microcell applications; photodetector; predistorter; radio over fiber system; semiconductor laser; spectrum analyzer; wideband code division multiple access; wireless networks; Fiber nonlinear optics; Optical fiber networks; Optical fibers; Polynomials; Predistortion; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230047

Filename

6230047