A physical layer secret key consistency enhancement scheme using constellation decision information
Secret key generation based on a wireless channel (WC-SKG) is a promising solution to address the security issues in wireless communication. However, the consistency of channel estimation between two legal communication nodes in WC-SKG is often poor due to the receiver noise, signal power, etc., lea...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2024-01-01
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| Series: | Security and Safety |
| Subjects: | |
| Online Access: | https://sands.edpsciences.org/articles/sands/full_html/2024/01/sands20230019/sands20230019.html |
| _version_ | 1797315686463176704 |
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| author | Deng Zheyuan Jin Liang Hu Xiaoyan Zhong Zhou Lou Yangming Niu Ge |
| author_facet | Deng Zheyuan Jin Liang Hu Xiaoyan Zhong Zhou Lou Yangming Niu Ge |
| author_sort | Deng Zheyuan |
| collection | DOAJ |
| description | Secret key generation based on a wireless channel (WC-SKG) is a promising solution to address the security issues in wireless communication. However, the consistency of channel estimation between two legal communication nodes in WC-SKG is often poor due to the receiver noise, signal power, etc., leading to a low secret key generation rate (SKGR). Although there are several denoising algorithms such as orthogonal transformation to address this issue, existing schemes overlook the fact that data symbols are also affected by the channel. This results in existing schemes only using the pilot symbols for channel estimation and not fully utilizing the received signal power of the WC-SKG. To address this issue, we propose a consistency enhancement algorithm based on constellation decision information (CEA-CDI), which utilizes both pilot symbols and soft decision information of data symbols to improve SKGR. Monte Carlo simulation and numerical results demonstrate that our proposed scheme can improve performance by approximately 16 dB compared to initial channel estimation. |
| first_indexed | 2024-03-08T03:07:23Z |
| format | Article |
| id | doaj.art-f1a6faad536a42929043bb6bb3ba9902 |
| institution | Directory Open Access Journal |
| issn | 2826-1275 |
| language | English |
| last_indexed | 2024-03-08T03:07:23Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Security and Safety |
| spelling | doaj.art-f1a6faad536a42929043bb6bb3ba99022024-02-13T08:36:49ZengEDP SciencesSecurity and Safety2826-12752024-01-013202303310.1051/sands/2023033sands20230019A physical layer secret key consistency enhancement scheme using constellation decision informationDeng Zheyuan0https://orcid.org/0009-0003-3409-4623Jin Liang1https://orcid.org/0000-0001-6464-6263Hu Xiaoyan2https://orcid.org/0000-0002-4312-9889Zhong Zhou3Lou Yangming4https://orcid.org/0000-0003-1673-2508Niu Ge5PLA Strategic Support Force Information Engineering UniversityPLA Strategic Support Force Information Engineering UniversityPLA Strategic Support Force Information Engineering UniversityPLA Strategic Support Force Information Engineering UniversityPLA Strategic Support Force Information Engineering UniversityPLA Strategic Support Force Information Engineering UniversitySecret key generation based on a wireless channel (WC-SKG) is a promising solution to address the security issues in wireless communication. However, the consistency of channel estimation between two legal communication nodes in WC-SKG is often poor due to the receiver noise, signal power, etc., leading to a low secret key generation rate (SKGR). Although there are several denoising algorithms such as orthogonal transformation to address this issue, existing schemes overlook the fact that data symbols are also affected by the channel. This results in existing schemes only using the pilot symbols for channel estimation and not fully utilizing the received signal power of the WC-SKG. To address this issue, we propose a consistency enhancement algorithm based on constellation decision information (CEA-CDI), which utilizes both pilot symbols and soft decision information of data symbols to improve SKGR. Monte Carlo simulation and numerical results demonstrate that our proposed scheme can improve performance by approximately 16 dB compared to initial channel estimation.https://sands.edpsciences.org/articles/sands/full_html/2024/01/sands20230019/sands20230019.htmlphysical secret key generationconsistency enhancementsoft decision |
| spellingShingle | Deng Zheyuan Jin Liang Hu Xiaoyan Zhong Zhou Lou Yangming Niu Ge A physical layer secret key consistency enhancement scheme using constellation decision information Security and Safety physical secret key generation consistency enhancement soft decision |
| title | A physical layer secret key consistency enhancement scheme using constellation decision information |
| title_full | A physical layer secret key consistency enhancement scheme using constellation decision information |
| title_fullStr | A physical layer secret key consistency enhancement scheme using constellation decision information |
| title_full_unstemmed | A physical layer secret key consistency enhancement scheme using constellation decision information |
| title_short | A physical layer secret key consistency enhancement scheme using constellation decision information |
| title_sort | physical layer secret key consistency enhancement scheme using constellation decision information |
| topic | physical secret key generation consistency enhancement soft decision |
| url | https://sands.edpsciences.org/articles/sands/full_html/2024/01/sands20230019/sands20230019.html |
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