상세정보
학술지
Compensation of IQ Mismatch in Optical PDM-OFDM Coherent Receivers
- 발행일
- 201010
- 출처
- Optical Fiber Technology, v.16 no.5, pp.304-308
- ISSN
- 1068-5200
- 출판사
- Elsevier
- 협약과제
- 10MI1700, 100Gbps급 이더넷 및 광전송기술개발, 김광준
- 초록
- The performance enhancements based on Gram-Schmidt orthogonalization procedure (GSOP) for compensating IQ mismatch in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems are investigated. We analytically explore IQ mismatch in optical OFDM systems and investigate the impacts of phase and amplitude IQ mismatch on required optical signal-to-noise ratio (OSNR) for the different values of data mapping and polarization multiplexing. The impacts of analog-to-digital converter (ADC) resolution and the number of samples in GSOP are also evaluated. The results show that the GSOP operation efficiently compensate IQ mismatch induced performance degradations regardless of the amount of IQ phase mismatch, density of data mapping, and polarization multiplexing. © 2010 Elsevier Inc. All rights reserved.
- KSP 제안 키워드
- Coherent optical orthogonal frequency division multiplexing(CO-OFDM), Coherent receiver, Data mapping, Gram-Schmidt orthogonalization procedure(GSOP), IQ mismatch, OFDM systems, Optical OFDM, Optical orthogonal frequency division multiplexing(O-OFDM), Orthogonal frequency division Multiplexing(OFDM), Phase mismatch, Polarization multiplexing