Multidimensional constellation shaping of up to 32 dimensions with different spectral efficiencies are compared through AWGN and fiber-optic simulations. The results show that no constellation is universal and the balance of required and effective SNRs should be jointly considered for the specific optical transmission scenario.

翻译：通过AWGN和光纤仿真，比较了高达32维且具有不同频谱效率的多维星座整形方案。结果表明，不存在通用的星座结构，在特定光传输场景中应联合考虑所需信噪比与有效信噪比的平衡。