Closed-Form Expression for BER of CE-OFDM in Optical Intensity-Modulated Direct-Detection Systems

被引：4
|
作者：
Oliari, Vinicius [1 ]
Santos, Caio [2 ]
Marciano, Pablo [2 ]
Rocha, Helder [2 ]
Segatto, Marcelo [2 ]
Silva, Jair [2 ]
机构：
[1] Eindhoven Univ Technol, Dept Elect Engn, ICTLab, Eindhoven, Netherlands
[2] Univ Espirito Santo, LabTel DEL, Vitoria, Brazil
来源：
IEEE COMMUNICATIONS LETTERS | 2019年 / 23卷 / 10期
关键词：
Adaptive optics; Optical noise; Signal to noise ratio; Optical attenuators; OFDM; Optical modulation; Bandwidth; Constant envelope optical OFDM; bit error rate (BER); optical signal-to-noise ratio (OSNR);
D O I：
10.1109/LCOMM.2019.2929515
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A closed-form expression for the bit-error-rate (BER) of constant envelope orthogonal frequency division multiplexing (CE-OFDM) in intensity-modulated direct-detection optical systems is provided in this letter. To the best of our knowledge, this letter is the first that provides an expression of the BER that considers the impact of electrical phase modulation index, signal bandwidth, optical modulation index, and Mach-Zehnder modulator bias point. Simulation and experimental results are included to validate the accuracy of the expression, subject to an analysis of the impact of electrical phase modulation index and the level of subcarrier mapping. With the analytical expression, we are able to reduce the computation time in design and parameter optimization of optical systems based in the CE-OFDM.
引用
收藏
页码：1796 / 1800
页数：5
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