RF Lens Antenna Array-Based One-Shot Coarse Pointing for Hybrid RF/FSO Communications
Because of its high directivity, free-space optical (FSO) communication offers a number of advantages. It can, however, give rise to major system difficulties concerning alignment between two terminals. During the link-acquisition step (a.k.a. coarse pointing), a ground station can be prevented from...
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| Veröffentlicht in: | IEEE wireless communications letters 2022-02, Vol.11 (2), p.240-244 |
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| creator | Moon, Hyung-Joo Jeon, Hong-Bae Chae, Chan-Byoung |
| description | Because of its high directivity, free-space optical (FSO) communication offers a number of advantages. It can, however, give rise to major system difficulties concerning alignment between two terminals. During the link-acquisition step (a.k.a. coarse pointing), a ground station can be prevented from acquiring optical links due to pointing errors and insufficient information about unmanned aerial vehicle locations. We propose, in this letter, a radio-frequency (RF) lens antenna array to increase the performance of coarse pointing in hybrid RF/FSO communications. The proposed algorithm using a novel closed-form angle estimator, compared to conventional methods, reduces the minimum outage probability by over a thousand times. |
| doi_str_mv | 10.1109/LWC.2021.3124809 |
| format | Article |
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The proposed algorithm using a novel closed-form angle estimator, compared to conventional methods, reduces the minimum outage probability by over a thousand times.</description><identifier>ISSN: 2162-2337</identifier><identifier>EISSN: 2162-2345</identifier><identifier>DOI: 10.1109/LWC.2021.3124809</identifier><identifier>CODEN: IWCLAF</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Algorithms ; Antenna arrays ; Antennas ; coarse pointing ; Directivity ; Free-space optical communication ; Free-space optics ; Ground stations ; lens antenna array ; Lens antennas ; Lenses ; Linear antenna arrays ; Optical fiber communication ; Radio frequency ; Uncertainty ; Unmanned aerial vehicles</subject><ispartof>IEEE wireless communications letters, 2022-02, Vol.11 (2), p.240-244</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The proposed algorithm using a novel closed-form angle estimator, compared to conventional methods, reduces the minimum outage probability by over a thousand times.</description><subject>Algorithms</subject><subject>Antenna arrays</subject><subject>Antennas</subject><subject>coarse pointing</subject><subject>Directivity</subject><subject>Free-space optical communication</subject><subject>Free-space optics</subject><subject>Ground stations</subject><subject>lens antenna array</subject><subject>Lens antennas</subject><subject>Lenses</subject><subject>Linear antenna arrays</subject><subject>Optical fiber communication</subject><subject>Radio frequency</subject><subject>Uncertainty</subject><subject>Unmanned aerial vehicles</subject><issn>2162-2337</issn><issn>2162-2345</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1rAjEQhkNpoWK9F3oJ9LyaTLIfOdqlWwsLFq30GGJM2pWa2GQ9-O8bUZzLvIfnnYEHoUdKxpQSMWm_6jEQoGNGgVdE3KAB0AIyYDy_vWZW3qNRjFuSpiAUaDVAq0WDW-MinrreOKfwNAR1zF5UNBs8dyZb_vge116FaPCH71zfuW9sfcCz4zp0G7xoJs1ynojd7uA6rfrOu_iA7qz6jWZ02UO0al4_61nWzt_e62mbaRC0zzgDxbgwllWClWWeM6G51ZXNuSCKwtoSW1BtuQGbAhBVJiTfcMOYMqDZED2f7-6D_zuY2MutPwSXXkoooBAlA0ITRc6UDj7GYKzch26nwlFSIk_-ZPInT_7kxV-qPJ0rnTHmiotcVBUj7B9FBGkR</recordid><startdate>20220201</startdate><enddate>20220201</enddate><creator>Moon, Hyung-Joo</creator><creator>Jeon, Hong-Bae</creator><creator>Chae, Chan-Byoung</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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It can, however, give rise to major system difficulties concerning alignment between two terminals. During the link-acquisition step (a.k.a. coarse pointing), a ground station can be prevented from acquiring optical links due to pointing errors and insufficient information about unmanned aerial vehicle locations. We propose, in this letter, a radio-frequency (RF) lens antenna array to increase the performance of coarse pointing in hybrid RF/FSO communications. The proposed algorithm using a novel closed-form angle estimator, compared to conventional methods, reduces the minimum outage probability by over a thousand times.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/LWC.2021.3124809</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0003-1146-7768</orcidid><orcidid>https://orcid.org/0000-0001-9561-3341</orcidid><orcidid>https://orcid.org/0000-0001-7522-8745</orcidid></addata></record> |
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| ispartof | IEEE wireless communications letters, 2022-02, Vol.11 (2), p.240-244 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Algorithms Antenna arrays Antennas coarse pointing Directivity Free-space optical communication Free-space optics Ground stations lens antenna array Lens antennas Lenses Linear antenna arrays Optical fiber communication Radio frequency Uncertainty Unmanned aerial vehicles |
| title | RF Lens Antenna Array-Based One-Shot Coarse Pointing for Hybrid RF/FSO Communications |
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