Title :
Phase noise effects on directly modulated 64-QAM OFDM radio-over-fiber systems
Author :
Hu, Jingjing ; Nkansah, Anthony ; Gomes, Nathan J. ; Zhao, Mingshan ; Gu, Yiying
Author_Institution :
Broadband & Wireless Commun. Group, Univ. of Kent, Canterbury, UK
Abstract :
In this paper, we studied the effect of the phase noise caused by the intrinsic analog optical link noise on orthogonal frequency-division multiplexing (OFDM) systems. The effect of this additive phase noise in the demodulation has been investigated by both numerical simulations based on a theoretical analysis and experiments using a low cost Vertical Cavity Surface Emitting Laser (VCSEL). The phase noise effect of the analog link on 64 QAM OFDM signal transmission when the laser relative intensity noise (RIN) is -131dB/Hz is investigated and found to be very small.
Keywords :
OFDM modulation; demodulation; phase noise; quadrature amplitude modulation; radio-over-fibre; surface emitting lasers; 64-QAM OFDM radio-over-fiber system; VCSEL; additive phase noise; demodulation; intrinsic analog optical link noise; laser relative intensity noise; low cost vertical cavity surface emitting laser; orthogonal frequency-division multiplexing; phase noise effect; Frequency measurement; Frequency modulation; Laser noise; OFDM; Optical fiber communication; Phase noise; Direct modulation; orthogonal frequency division multiplexing (OFDM); phase noise; radio over fiber;
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088743
