Error Vector Magnitude as a Performance Measure for Advanced Modulation Formats
Error Vector Magnitude as a Performance Measure for Advanced Modulation Formats
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DOI：
10.1109/lpt.2011.2172405
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发表时间：
2012-01-01
影响因子：
2.6
通讯作者：
Leuthold, Juerg
中科院分区：
文献类型：
--
作者：
Schmogrow, Rene;Nebendahl, Bernd;Leuthold, Juerg
我们检查了光学信噪比（OSNR），误差向量幅度（EVM）和比特纠错比（BER）之间的关系。将理论结果和数值模拟与OSNR，EVM和BER的测量值进行比较。我们得出的结论是，EVM是通过添加白色高斯噪声限制的光通道的合适度量。结果由六个调制格式的实验支持，该格式的符号速率为20和25 GBD，由软件定义的发射器产生。
We examine the relation between optical signal-to-noise ratio (OSNR), error vector magnitude (EVM), and bit-error ratio (BER). Theoretical results and numerical simulations are compared to measured values of OSNR, EVM, and BER. We conclude that the EVM is an appropriate metric for optical channels limited by additive white Gaussian noise. Results are supported by experiments with six modulation formats at symbol rates of 20 and 25 GBd generated by a software-defined transmitter.