Performance improvement of OFDM-ROF system with combined adaptive modulation

Author

Kang, Ning ; Sun, Xuekang ; Liang, Jin ; Gu, Wanyi

Author_Institution

Sch. of Telecommun. Educ., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2009

fDate

12-14 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

Recently, the integration of orthogonal frequency division multiplexing (OFDM) and radio over fiber (RoF) technique emerged the possibility of cost-effective and high data rate wireless network (WiMAX, 4G). However, the nonlinear effects in optical link as well as the multipath fading in wireless transmission can severely degrade the performance of OFDM-ROF system. In this paper, we present a combined adaptive modulation which can combat with both the nonlinear effects and frequency-selected fading. Simulation results show better BER performance compared to conventional modulation schemes.

Keywords

OFDM modulation; adaptive modulation; fading channels; multipath channels; optical links; optical modulation; radio-over-fibre; OFDM-ROF system; combined adaptive modulation; multipath fading channel; optical link; orthogonal frequency division multiplexing system; radio over fiber technique; wireless network; Adaptive systems; Baseband; Bit error rate; Degradation; Fading; Nonlinear distortion; OFDM modulation; Optical fiber communication; Optical transmitters; Wireless communication; BER; OFDM; Radio over fiber; adaptive modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Mobile Congress 2009

Conference_Location

Shanghai

Print_ISBN

978-1-4244-5302-3

Electronic_ISBN

978-1-4244-5301-6

Type

conf

DOI

10.1109/GMC.2009.5295867

Filename

5295867