Revisiting Non-Coherent Detection of Differential PSK: A Factor Graph Perspective
| Author(s) | Shi, Long | |
| Author(s) | Wang, Taotao | |
| Author(s) | Mei, Zhen | |
| Author(s) | Li, Jun | |
| Author(s) | Xia, Xiang-Gen | |
| Date Accessioned | 2023-03-15T18:55:59Z | |
| Date Available | 2023-03-15T18:55:59Z | |
| Publication Date | 2022-12-23 | |
| Description | © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This article was originally published in IEEE Communications Letters. The version of record is available at: https://doi.org/10.1109/LCOMM.2022.3231920 | |
| Abstract | For non-coherent differential modulated communications, the multiple-symbol differential detection (MSDD) may approach the coherent detection performance by jointly detecting a block of symbols. However, MSDD cannot support large-size block detection due to its complexity exponentially increasing with the block size. Moreover, MSDD assumes that the channel phase is constant over the symbols in a block, which is not realistic. In this letter, we propose to formulate the signal model of non-coherent differential modulated communications by means of a factor graph. Based on the factor graph, we develop a sum-product message-passing algorithm to enable the maximum a posteriori probability detection. Compared with MSDD, the detection complexity of our proposed scheme is linearly proportional to the block size. Simulation results show that the proposed scheme can not only achieve the performance of MSDD over the constant-phase channel, but also outperform it over the random-walk phase channel. | |
| Sponsor | This work was supported by the Jiangsu Specially-Appointed Professor Program 2021, by the National Natural Science Foundation of China under Grant 62201258, and by the Natural Science Fund of Shenzhen under Grant JCYJ20210324094609027. | |
| Citation | L. Shi, T. Wang, Z. Mei, J. Li and X. -G. Xia, "Revisiting Non-Coherent Detection of Differential PSK: A Factor Graph Perspective," in IEEE Communications Letters, vol. 27, no. 2, pp. 701-705, Feb. 2023, doi: 10.1109/LCOMM.2022.3231920. | |
| ISSN | 1558-2558 | |
| URL | https://udspace.udel.edu/handle/19716/32447 | |
| Language | en_US | |
| Publisher | IEEE Communications Letters | |
| Keywords | Differential PSK | |
| Keywords | non-coherent detection | |
| Keywords | factor graph | |
| Keywords | sum-product message passing | |
| Title | Revisiting Non-Coherent Detection of Differential PSK: A Factor Graph Perspective | |
| Type | Article |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- Revisiting Non-coherent Detection of Differential PSK.pdf
- Size:
- 890.12 KB
- Format:
- Adobe Portable Document Format
- Description:
- Main article
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 124 B
- Format:
- Item-specific license agreed upon to submission
- Description: