Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery

doi:10.3788/fgxb20204102.0224

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	Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery
	L. Li and Z.-Y. Wu
	2020
发表期刊	Faguang Xuebao/Chinese Journal of Luminescence
ISSN	10007032
卷号	41 期号:2 页码:224-231
摘要	Coherent free-space optical communication with 8-quadrature amplitude modulation (8-QAM) using joint algorithm of amplitude compensation and digital phase recovery is proposed. Compared with traditional free-space optical communication schemes, the scheme we proposed not only can restore the signal without requiring the knowledge of instantaneous channel state information, but also has higher spectral efficiency. Numerical studies show that the bit error rate of the proposed system is four orders of magnitude lower than that of the 8-QAM system without joint algorithm, when the frequency offset f0=20 MHz between the receiver and the transmitter, the lasers joint linewidth f=10 kHz, and the signal-to-noise ratio is 20 dB for a lognormal turbulence channel with =0.25 and phase noise with 2=0.07. 2020, Science Press. All right reserved.
DOI	10.3788/fgxb20204102.0224
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收录类别	EI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64364
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L. Li and Z.-Y. Wu. Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery[J]. Faguang Xuebao/Chinese Journal of Luminescence,2020,41(2):224-231.
APA	L. Li and Z.-Y. Wu.(2020).Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery.Faguang Xuebao/Chinese Journal of Luminescence,41(2),224-231.
MLA	L. Li and Z.-Y. Wu."Coherent Free-space Optical Communication with 8-QAM Modulation Using Joint Algorithm of Amplitude Compensation and Digital Phase Recovery".Faguang Xuebao/Chinese Journal of Luminescence 41.2(2020):224-231.

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