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

doi:10.3788/fgxb20204102.0224

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	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
刊名	Faguang Xuebao/Chinese Journal of Luminescence
	2020
卷号	41 期号:2 页码:224-231
ISSN号	10007032
DOI	10.3788/fgxb20204102.0224
英文摘要	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.
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内容类型	期刊论文
源URL	[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.