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학술지 Nonlinearity Mitigation of Multiband OFDM-RoF Optical Transmitter Using Feed-Forward Technique
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저자
박형준, 정선영, 조승현, 이종현, 한상국
발행일
201605
출처
Microwave and Optical Technology Letters, v.58 no.5, pp.1236-1240
ISSN
0895-2477
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/mop.29770
협약과제
16ZI1300, 광 기반 Compact Radio & Dense Digital 이동통신 기지국 핵심기술 개발, 이종현
초록
We mathematically and experimentally demonstrate the nonlinearity suppression of optical transmitter in multiband orthogonal frequency division multiplexing based radio over fiber system (multiband OFDM-RoF) by feed-forward technique. The proposed method is a simple technique that can decrease static and dynamic nonlinear transfer characteristics. Nonlinearity of multiband OFDM-RoF has been experimentally evaluated by transmitting nine optical OFDM channels. Experimental results show that nonlinear components from optical transmitter are suppressed and EVM is improved by 7.3% in multiband OFDM signal by using the proposed technique.
KSP 제안 키워드
Feed-forward technique, Multiband OFDM, Multiband orthogonal frequency division multiplexing, OFDM signal, OFDM-RoF, Optical OFDM, Optical transmitters, Orthogonal frequency division Multiplexing(OFDM), Radio over fiber(ROF), Simple Technique, Static and dynamic