کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6888394 | 697328 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Proposal of ICI cancellation using opposite weightings on symmetric subcarrier pairs in CO-OFDM systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We propose a novel ICI cancellation using opposite weighting on symmetric subcarrier pairs to combat the linear phase noise of laser source and the nonlinear phase noise resulted from the fiber nonlinearity. We compare the proposed ICI cancellation scheme with conventional OFDM and the ICI self-cancellation at the same raw bit rate of 35.6Â Gb/s. In simulations, the proposed ICI cancellation scheme shows better phase noise tolerance compared with conventional OFDM and has similar phase noise tolerance with the ICI self-cancellation. The laser linewidth is about 13Â MHz at BER of 2Â ÃÂ 10â3 with ICI cancellation scheme while it is 5Â MHz in conventional OFDM. We also study the nonlinearity tolerance and find that the proposed ICI cancellation scheme is better compared with the other two schemes which due to the first order nonlinearity mitigation. The launch power is 7Â dBm for the proposed ICI cancellation scheme and its SNR improves by 4Â dB or 3Â dB compared with the ICI self-cancellation or conventional OFDM at BER of 1.1Â ÃÂ 10â3, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 24, August 2015, Pages 34-37
Journal: Optical Fiber Technology - Volume 24, August 2015, Pages 34-37
نویسندگان
Jing Zhang, Xuemei Chen, Mingliang Deng, Dengke Zeng, Heming Yang, Kun Qiu,