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CO-OFDM传输系统相位噪声估计 被引量：1

Phase Noise Estimation in CO-OFDM System of Transmission System
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摘要 从理论上分析了激光器相位偏移对相干光正交频分复用(CO-OFDM)系统传输性能影响,并指出相位噪声是相干光OFDM主要噪声源。在传统无线OFDM信道估计基础上,提出了一种基于导频子载波的相位噪声估计和补偿方法,在OptiSystem中建立CO-OFDM系统仿真模型,通过仿真证明了该方法可以有效地改善CO-OFDM系统传输性能。 In this paper, the effect of laser phase offsets in CO-OFDM is theoretically analysed, and it is pionted out that the phase noise is main noise source in CO-OFDM. Based on the conventional radio OFDM channel estimation, a pilot-aided method of phase noise estimation and compensation are proposed. By using simulation in OptiSystem, this method can impove transmission performance of CO-OFDM system.
作者 王利君
机构地区 重庆邮电大学通信与信息工程学院
出处 《电视技术》 北大核心 2011年第17期74-77,共4页 Video Engineering
关键词 相干光正交频分复用 相位估计 信道估计 CO-OFDM phase estimation channel estimation
分类号 TN911.23 [电子电信—通信与信息系统]
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参考文献6

  • 1TANG Y,SHIEH W,YI X,et al.Optimum design for RF-to-optical up-converter in coherent optical OFDM systems[].IEEE Photonics Technology Letters.2007
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  • 3SHIEH W.Maximum-likelihood phase and channel estimation for co-herent optical OFDM[].IEEE Photonics Technology Letters.2008
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同被引文献18

  • 1LOWERY A J, DU L, ARMST RONG J. Orthogonal frequency divi- sion multiplexing for adaptive dispersion com- pensation in long haul WDM systems [A]. OFC 2006 [C]. Anaheim, CA :OSA ,2006.
  • 2KOBAYASHI T, SANO A, YAMADA E, et al. Electrooptically multi- plexed 110 Gbit/s optical OFDM signal transmission over 80km SMF with-out dispersion compensation[J].Electronics Letters, 2008,44(3):225-226.
  • 3MA Y, SHIEH W, YI X. Characterisation of nonlinearity performance for coherent optical OFDM signals under influenceofPMD [J].Electron- ies-Letters,2007,43( 17):943-945.
  • 4PIZZINAT Anna, URVOAS Pierre, CHARBONNIER Benoit. 1.92 Gbiff s MB-OFDM ultra wide band radiot, transmission over low bandwidth mul- timode fiber[A]. OFC 2007[C]. Anaheim, California : OSA, 2007. OThM6 in Technical Digest.
  • 5LIN Yu-Min. Demonstration and design of high spectral efficiency 4Gb/s OFDM system in passive optical networks [A]. OFC 2007 [C]. Anaheim ,California :OSA, 2007. OThD7 in Technical Digest.
  • 6SHIEH W, BAO H, T1NG Y. Coherent optical OFDM: theory and de- sign [J]. Optical Express, 2008, 16(2): 841-859.
  • 7SHAO Yufeng, HUANG Bo, NAN Chi ,et al.A novel subcarrier OFDM- MSK WDM passive optical network[C]. OFC, 2010, OTuO4.
  • 8HILLERKUSS D,SCHELL1NGER T,SCHMOGROW R,et al.Single source optical OFDM transmitter and optical FFT receiver demonstrated at line rates of 5.4 and 10.8Tbit/s[C].OFC.2010. PDPC 1.
  • 9ARMSTRONG J. OFDM for Optical Communications [J].Journal of Lightwave.Technology, 2009, 27(3): 189-204.
  • 10ANG Chao ,CHEN Hongwei ,YIN Feifei, et al.200Gs/s real-time op- tical-sampling-based orthogonal frequency division multiplxing system[C]. OFC,2010,OWO5.

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电视技术
2011年 第17期

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