Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios
The mutual information of the observed channel phase between devices can serve as an entropy source for secret key generation in line-of-sight scenarios. However, so far only simulated and numeric results were available. This paper derives the probability distribution of the channel phase and corres...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/25/7/1038 |
| _version_ | 1797589393106534400 |
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| author | Maximilian Matthé Arsenia Chorti |
| author_facet | Maximilian Matthé Arsenia Chorti |
| author_sort | Maximilian Matthé |
| collection | DOAJ |
| description | The mutual information of the observed channel phase between devices can serve as an entropy source for secret key generation in line-of-sight scenarios. However, so far only simulated and numeric results were available. This paper derives the probability distribution of the channel phase and corresponding expressions for the mutual information. Moreover, the orientation distribution is optimized in order to maximize the mutual information. All presented results are validated numerically. These outcomes serve as a basis for further analytic investigations on the secret key generation rate and subsequent physical layer security performance analysis in line-of-sight scenarios, such as those encountered in drone-aided communications. |
| first_indexed | 2024-03-11T01:06:00Z |
| format | Article |
| id | doaj.art-c1a24a27700a41199021814b13b81559 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-11T01:06:00Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-c1a24a27700a41199021814b13b815592023-11-18T19:13:50ZengMDPI AGEntropy1099-43002023-07-01257103810.3390/e25071038Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight ScenariosMaximilian Matthé0Arsenia Chorti1Barkhausen Institut gGmbH, Würzburger Str. 46, 01187 Dresden, GermanyBarkhausen Institut gGmbH, Würzburger Str. 46, 01187 Dresden, GermanyThe mutual information of the observed channel phase between devices can serve as an entropy source for secret key generation in line-of-sight scenarios. However, so far only simulated and numeric results were available. This paper derives the probability distribution of the channel phase and corresponding expressions for the mutual information. Moreover, the orientation distribution is optimized in order to maximize the mutual information. All presented results are validated numerically. These outcomes serve as a basis for further analytic investigations on the secret key generation rate and subsequent physical layer security performance analysis in line-of-sight scenarios, such as those encountered in drone-aided communications.https://www.mdpi.com/1099-4300/25/7/1038physical layer securitysecret key generationdirectional statisticsvon-Mises distribution |
| spellingShingle | Maximilian Matthé Arsenia Chorti Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios Entropy physical layer security secret key generation directional statistics von-Mises distribution |
| title | Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios |
| title_full | Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios |
| title_fullStr | Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios |
| title_full_unstemmed | Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios |
| title_short | Analysis of the Mutual Information of Channel Phase Observations in Line-of-Sight Scenarios |
| title_sort | analysis of the mutual information of channel phase observations in line of sight scenarios |
| topic | physical layer security secret key generation directional statistics von-Mises distribution |
| url | https://www.mdpi.com/1099-4300/25/7/1038 |
| work_keys_str_mv | AT maximilianmatthe analysisofthemutualinformationofchannelphaseobservationsinlineofsightscenarios AT arseniachorti analysisofthemutualinformationofchannelphaseobservationsinlineofsightscenarios |