BER Analysis of a Deep Space Optical Communication System Based on SNSPD Over Double Generalized Gamma Channel

被引:16
作者
Li, Bo [1 ]
Liu, Yutong [2 ]
Tong, Shoufeng [3 ]
Zhang, Lei [3 ]
Yao, Haifeng [1 ]
机构
[1] Changchun Univ Sci & Technol, Inst Photoelect Engn, Changchun 130022, Jilin, Peoples R China
[2] Coll Opt & Elect Informat, Changchun 130114, Jilin, Peoples R China
[3] Changchun Univ Sci & Technol, Inst Space Photoelect Technol, Changchun 130022, Jilin, Peoples R China
来源
IEEE PHOTONICS JOURNAL | 2018年 / 10卷 / 05期
关键词
Deep space optical communication; bit error rate (BER); pulse position modulation (PPM); superconducting nanowire single photon detector (SNSPD);
D O I
10.1109/JPHOT.2018.2868738
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Optical communication has a broad prospect in deep space communication. The mechanism and the asymptotic dark count estimate of superconducting nanowire single photon detector (SNSPD) are introduced. Considering the detector bias current, an average bit error expression is established based on SNSPD and pulse position modulation optical communication system over Double Generalized Gamma channel firstly. Numerical results show that both the bias current and the atmospheric turbulence intensity have influence on the BER performance. The uncoded BER can achieve 10-5 in 32-PPM scheme with Ibias/Iv = 0.85 when SNR = 8 dB under weak atmospheric turbulence. This work can be utilized in deep space optical communication and benefits downlink communication system design.
引用
收藏
页数:7
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