Low-Complexity Equalization of Continuous Phase Modulation Using Message Passing

Jian Zhang; Zuyao Ni; Sheng Wu; Linling Kuang

5G for Future Wireless Networks. First International Conference, 5GWN 2017, Beijing, China, April 21-23, 2017, Proceedings

Research Article

Low-Complexity Equalization of Continuous Phase Modulation Using Message Passing

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@INPROCEEDINGS{10.1007/978-3-319-72823-0_46,
    author={Jian Zhang and Zuyao Ni and Sheng Wu and Linling Kuang},
    title={Low-Complexity Equalization of Continuous Phase Modulation Using Message Passing},
    proceedings={5G for Future Wireless Networks. First International Conference, 5GWN 2017, Beijing, China, April 21-23, 2017, Proceedings},
    proceedings_a={5GWN},
    year={2018},
    month={1},
    keywords={Continuous phase modulation Iterative receivers Factor graphs ISI},
    doi={10.1007/978-3-319-72823-0_46}
}

Jian Zhang
Zuyao Ni
Sheng Wu
Linling Kuang
Year: 2018
Low-Complexity Equalization of Continuous Phase Modulation Using Message Passing
5GWN
Springer
DOI: 10.1007/978-3-319-72823-0_46

Jian Zhang¹^,*, Zuyao Ni¹^,*, Sheng Wu¹^,*, Linling Kuang¹^,*

1: Tsinghua University

*Contact email: jian-zha14@mails.tsinghua.edu.cn, nzy@tsinghua.edu.cn, thuraya@tsinghua.edu.cn, kll@tsinghua.edu.cn

Abstract

In this paper, based on factor graphs and Laurent decompositions, we propose an iterative receiver of CPM signals over interference (ISI) channels. We adopt the Gaussian message passing to simplify the message passing in factor graphs. Compared with the conventional receivers with the minimum mean squared error (MMSE) frequency domain equalization (FDE) and the BCJR demodulator, the proposed algorithm has advantages in terms of complexity. And the proposed algorithm can achieve better performance with the convolutional code.

Keywords: Continuous phase modulation Iterative receivers Factor graphs ISI

Published: 2018-01-19
Appears in: SpringerLink

: http://dx.doi.org/10.1007/978-3-319-72823-0_46