Performance Comparison of PS Star-16QAM and PS Square-Shaped 16QAM (Square-16QAM)

Performance Comparison of PS Star-16QAM and PS Square-Shaped 16QAM (Square-16QAM)

We investigate and compare the performance of star-shaped 16-ary quadrature amplitude modulation (Star-16QAM) and square-shaped 16QAM (Square-16QAM) in the probabilistic shaping (PS) and uniform schemes with coherent detection. With the help of PS technology, the bit error ratio (BER) improvement ac...

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Bibliographic Details
Main Authors: Bo Liu, Ying Zhang, Kaihui Wang, Miao Kong, Lijia Zhang, Qi Zhang, Qinghua Tian, Xiangjun Xin
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
Subjects:
Probabilistic shaping (PS)
star-16QAM
square-16QAM
homodyne coherent detection
Online Access:https://ieeexplore.ieee.org/document/8060519/
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Summary:We investigate and compare the performance of star-shaped 16-ary quadrature amplitude modulation (Star-16QAM) and square-shaped 16QAM (Square-16QAM) in the probabilistic shaping (PS) and uniform schemes with coherent detection. With the help of PS technology, the bit error ratio (BER) improvement achieved in the PS-Star-16QAM scheme is greater than that of the PS-Square-16QAM when compared with the uniform schemes in our numerical simulation and experiment. Therefore, the PS-Star-16QAM shows superiority over the PS-Square-16QAM in terms of the BER improvement.
ISSN:1943-0655

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