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    Probabilistically Shaped 8-PAM Suitable for Data Centers Communication

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    Author
    Han, Xiao
    Djordjevic, Ivan B.
    Affiliation
    Univ Arizona, Dept Elect & Comp Engn
    Issue Date
    2018
    Keywords
    8-PAM
    probabilistic shaping
    distribution matching
    exponential distribution
    LDPC coding
    
    Metadata
    Show full item record
    Publisher
    IEEE
    Citation
    Han, X., & Djordjevic, I. B. (2018, July). Probabilistically Shaped 8-PAM Suitable for Data Centers Communication. In 2018 20th International Conference on Transparent Optical Networks (ICTON) (pp. 1-4). IEEE.
    Journal
    2018 20TH ANNIVERSARY INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON)
    Rights
    Copyright © 2018, IEEE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    We study non-uniform 8-PAM signaling schemes, based on Maxwell-Boltzmann and exponential source distributions, as candidates suitable for data centers' communications. We evaluate mutual information of these schemes against corresponding uniform 8-PAM scheme, for different parameters of source distributions. The properly chosen variable parameters for different SNR-regions allows us to closely approach Shannon limit, and to significantly outperform the corresponding uniform counterpart. We demonstrate that LPDC-coded 8-PAM with exponential distribution outperforms the LDPC-coded 8-PAM with uniform distribution of the same achievable information rate by 1.8 dB, and this improvement is comparable to that obtained from mutual information calculations.
    ISSN
    978-1-5386-6605-0
    DOI
    10.1109/ICTON.2018.8473738
    Version
    Final accepted manuscript
    Additional Links
    https://ieeexplore.ieee.org/document/8473738/
    ae974a485f413a2113503eed53cd6c53
    10.1109/ICTON.2018.8473738
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