Impact Of Finite-Resolution Dac And Adc On Probabilistically-Shaped Qam Constellations
30TH ANNUAL CONFERENCE OF THE IEEE PHOTONICS SOCIETY (IPC)(2017)
摘要
We analyze the impact of finite resolution of DAC and ADC on the performance of coherent-detection optical communication systems using probabilistically-shaped 64-QAM constellations. We show that no substantial additional penalty is incurred with respect to uniformly distributed constellations with the same net data rate.
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关键词
probabilistically-shaped QAM constellations,finite resolution,coherent-detection optical communication systems,64-QAM constellations,substantial additional penalty,uniformly distributed constellations
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