OFDM_SYSTEMS

作品数：132被引量：158H指数：6
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Enhanced fourth-power algorithm for phase estimation with frequency separation in direct-detection optical OFDM systems
《Chinese Optics Letters》2013年第6期10-15,共6页孔敏 肖江南 董泽 杨柳青青 陈林 余建军 
supported by the National Natural Science Foundation of China (No. 60977049);the National"863" Program of China (No. 2011AA010203);the Hunan Provincial Natural Science Foundation (No.12JJ3070)
The optical orthogonal frequency division multiplexing （OFDM） signal is affected by impairments intro- duced by electrical filters and optical chromatic dispersion. An enhanced fourth-power algorithm for phase estim...
关键词：ALGORITHMS Chromatic dispersion Estimation Frequency estimation Single mode fibers Telecommunication systems 
Improving nonlinearity tolerance of 112-Gb/s PDM OFDM systems with coherent detection using BLAST algorithm被引量：1
《Chinese Optics Letters》2012年第11期13-16,共4页徐艳飞 乔耀军 纪越峰 
supported by the National Natural Sci-ence Foundation of China(No.60932004);the National"973"Program of China(No.2012CB315705);the National"863"Program of China(No.2012AA011301)
The use of Bell Laboratories layered space-time （BLAST） architecture as a digital signal processing algorithm is proposed in this letter. It is aimed at improving the nonlinearity tolerance of a polarization divisio...
关键词：Algorithms Optical communication Orthogonal frequency division multiplexing Single mode fibers Telecommunication systems 
Fiber nonlinearity mitigation by PAPR reduction in coherent optical OFDM systems via biased clipping OFDM被引量：4
《Chinese Optics Letters》2012年第1期16-19,共4页郝耀鸿 李玉权 王荣 黄卫卫 
supported by the National Natural Science Foundation of China under Grant No.60871075
A new method incorporating biased clipping orthogonal frequency division multiplexing （OFDM） is presented, which mitigates fiber nonlinear effects in a long-haul coherent optical OFDM （CO-OFDM） system. Under the s...
关键词：Fibers Light modulators Telecommunication systems 
Phase pre-emphasis for PAPR reduction in optical OFDM systems based on OIDFT or time lens被引量：3
《Chinese Optics Letters》2010年第9期875-880,共6页邵晶 李蔚 梁晓军 
supported by the National "973"the Program of China (Nos. 2010CB328300 and 2010CB328305);the National Natural Science Foundation of China (No. 60772013);the National "863"program of China (No. 2009AA03Z408)
Phase pre-emphasis is theoretically studied and introduced to reduce peak-to-average power ratio （PAPR） in optical orthogonal frequency division multiplexing （OFDM） systems. In intensity modulated （IM） systems, ...
关键词：Bit error rate Frequency allocation Lenses Optical instruments Orthogonal functions Telecommunication systems 
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