Wearable Antennas for Virtual Reality Cross-Body Links
Cross-body link refers to the wireless connection between two wearable devices when they are both worn or near the body, such as that of a virtual reality (VR) headset and its controllers. It is one of the most challenging wireless scenarios in terms of link budget, due to severe shadowing effects w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Open Journal of Antennas and Propagation |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10025374/ |
| _version_ | 1797900234177642496 |
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| author | Wenjing Su Prathap Valale Prasannakumar Yixiang Li Geng Ye Jiang Zhu |
| author_facet | Wenjing Su Prathap Valale Prasannakumar Yixiang Li Geng Ye Jiang Zhu |
| author_sort | Wenjing Su |
| collection | DOAJ |
| description | Cross-body link refers to the wireless connection between two wearable devices when they are both worn or near the body, such as that of a virtual reality (VR) headset and its controllers. It is one of the most challenging wireless scenarios in terms of link budget, due to severe shadowing effects when controllers are placed at the back side of the body. This is especially true when the users are in an outdoor environment where there is less reflection from the surrounding. This paper investigates the wireless propagation mechanism, including line-of-sight, ground reflection, and creeping waves. Based on that, through simulation and measurement experiments, this work analyzes the impact of different antenna designs on the cross-body link of VR/AR devices, including one novel compact low-profile antenna named Distributed Monopole (DM), and two conventional antennas. Due to the polarization advantages, both the novel DM antenna and the patch antenna shows significantly better performance than the dipole antenna. The DM antenna also shows a 2–4 dB advantage over the patch antenna due to its omni-directional field pattern. Time-domain analysis and statistical approaches are suggested to fully characterize the cross-body link of VR/AR antennas and body propagation. |
| first_indexed | 2024-04-10T08:41:44Z |
| format | Article |
| id | doaj.art-9b50c96613f5465da8086b0d496a7f2d |
| institution | Directory Open Access Journal |
| issn | 2637-6431 |
| language | English |
| last_indexed | 2024-04-10T08:41:44Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Antennas and Propagation |
| spelling | doaj.art-9b50c96613f5465da8086b0d496a7f2d2023-02-23T00:01:17ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312023-01-01420721510.1109/OJAP.2023.323936910025374Wearable Antennas for Virtual Reality Cross-Body LinksWenjing Su0https://orcid.org/0000-0001-9180-0553Prathap Valale Prasannakumar1Yixiang Li2Geng Ye3Jiang Zhu4https://orcid.org/0000-0001-5876-5450Reality Labs, Meta Platforms Inc., Menlo Park, CA, USAReality Labs, Meta Platforms Inc., Menlo Park, CA, USAReality Labs, Meta Platforms Inc., Menlo Park, CA, USAReality Labs, Meta Platforms Inc., Menlo Park, CA, USAReality Labs, Meta Platforms Inc., Menlo Park, CA, USACross-body link refers to the wireless connection between two wearable devices when they are both worn or near the body, such as that of a virtual reality (VR) headset and its controllers. It is one of the most challenging wireless scenarios in terms of link budget, due to severe shadowing effects when controllers are placed at the back side of the body. This is especially true when the users are in an outdoor environment where there is less reflection from the surrounding. This paper investigates the wireless propagation mechanism, including line-of-sight, ground reflection, and creeping waves. Based on that, through simulation and measurement experiments, this work analyzes the impact of different antenna designs on the cross-body link of VR/AR devices, including one novel compact low-profile antenna named Distributed Monopole (DM), and two conventional antennas. Due to the polarization advantages, both the novel DM antenna and the patch antenna shows significantly better performance than the dipole antenna. The DM antenna also shows a 2–4 dB advantage over the patch antenna due to its omni-directional field pattern. Time-domain analysis and statistical approaches are suggested to fully characterize the cross-body link of VR/AR antennas and body propagation.https://ieeexplore.ieee.org/document/10025374/Wearable antennabody area network (BAN)ultrawide band (UWB)shadowing effectcreeping waveground reflection |
| spellingShingle | Wenjing Su Prathap Valale Prasannakumar Yixiang Li Geng Ye Jiang Zhu Wearable Antennas for Virtual Reality Cross-Body Links IEEE Open Journal of Antennas and Propagation Wearable antenna body area network (BAN) ultrawide band (UWB) shadowing effect creeping wave ground reflection |
| title | Wearable Antennas for Virtual Reality Cross-Body Links |
| title_full | Wearable Antennas for Virtual Reality Cross-Body Links |
| title_fullStr | Wearable Antennas for Virtual Reality Cross-Body Links |
| title_full_unstemmed | Wearable Antennas for Virtual Reality Cross-Body Links |
| title_short | Wearable Antennas for Virtual Reality Cross-Body Links |
| title_sort | wearable antennas for virtual reality cross body links |
| topic | Wearable antenna body area network (BAN) ultrawide band (UWB) shadowing effect creeping wave ground reflection |
| url | https://ieeexplore.ieee.org/document/10025374/ |
| work_keys_str_mv | AT wenjingsu wearableantennasforvirtualrealitycrossbodylinks AT prathapvalaleprasannakumar wearableantennasforvirtualrealitycrossbodylinks AT yixiangli wearableantennasforvirtualrealitycrossbodylinks AT gengye wearableantennasforvirtualrealitycrossbodylinks AT jiangzhu wearableantennasforvirtualrealitycrossbodylinks |