Relay-Assisted Technology in Optical Wireless Communications: A Survey
When the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission. One of the existing solutions is to use relay-assisted technology (RAT). It makes the communication...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9224713/ |
| _version_ | 1818431567340503040 |
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| author | Wenwen Liu Jupeng Ding Jiong Zheng Xifeng Chen Chih-Lin I |
| author_facet | Wenwen Liu Jupeng Ding Jiong Zheng Xifeng Chen Chih-Lin I |
| author_sort | Wenwen Liu |
| collection | DOAJ |
| description | When the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission. One of the existing solutions is to use relay-assisted technology (RAT). It makes the communications between the source and the destination possible under better channel conditions by setting up relay between the source and the destination. There are few comprehensive articles about relay-assisted technology in OWC. To fill this gap, this paper introduces the RAT of indoor optical wireless communications (IOWC), outdoor optical wireless communications (OOWC) and underwater optical wireless communications (UOWC) in different application scenarios, which has a better effect than direct communication between source and destination. The relay protocols, channel models, modulation techniques under three relay modes are reviewed. Finally, challenges of RAT in OWC are put forward and potential solutions are also given. |
| first_indexed | 2024-12-14T15:51:21Z |
| format | Article |
| id | doaj.art-89fe9b513fc94b14bfd1d26505b86bba |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T15:51:21Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-89fe9b513fc94b14bfd1d26505b86bba2022-12-21T22:55:22ZengIEEEIEEE Access2169-35362020-01-01819438419440910.1109/ACCESS.2020.30312889224713Relay-Assisted Technology in Optical Wireless Communications: A SurveyWenwen Liu0https://orcid.org/0000-0001-7877-9200Jupeng Ding1https://orcid.org/0000-0002-1761-6448Jiong Zheng2Xifeng Chen3https://orcid.org/0000-0002-2869-9883Chih-Lin I4Key Laboratory of Signal Detection and Processing in Xinjiang Uygur Autonomous Region, School of Information Science and Engineering, Xinjiang University, Ürümqi, ChinaKey Laboratory of Signal Detection and Processing in Xinjiang Uygur Autonomous Region, School of Information Science and Engineering, Xinjiang University, Ürümqi, ChinaKey Laboratory of Signal Detection and Processing in Xinjiang Uygur Autonomous Region, School of Information Science and Engineering, Xinjiang University, Ürümqi, ChinaKey Laboratory of Signal Detection and Processing in Xinjiang Uygur Autonomous Region, School of Information Science and Engineering, Xinjiang University, Ürümqi, ChinaGreen Communication Research Center, China Mobile Research Institute, China Mobile Communications Group Co., Ltd., Beijing, ChinaWhen the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission. One of the existing solutions is to use relay-assisted technology (RAT). It makes the communications between the source and the destination possible under better channel conditions by setting up relay between the source and the destination. There are few comprehensive articles about relay-assisted technology in OWC. To fill this gap, this paper introduces the RAT of indoor optical wireless communications (IOWC), outdoor optical wireless communications (OOWC) and underwater optical wireless communications (UOWC) in different application scenarios, which has a better effect than direct communication between source and destination. The relay protocols, channel models, modulation techniques under three relay modes are reviewed. Finally, challenges of RAT in OWC are put forward and potential solutions are also given.https://ieeexplore.ieee.org/document/9224713/Relay-assisted technologyoptical wireless communicationsindoor optical wireless communicationsoutdoor optical wireless communicationsunderwater optical wireless communications |
| spellingShingle | Wenwen Liu Jupeng Ding Jiong Zheng Xifeng Chen Chih-Lin I Relay-Assisted Technology in Optical Wireless Communications: A Survey IEEE Access Relay-assisted technology optical wireless communications indoor optical wireless communications outdoor optical wireless communications underwater optical wireless communications |
| title | Relay-Assisted Technology in Optical Wireless Communications: A Survey |
| title_full | Relay-Assisted Technology in Optical Wireless Communications: A Survey |
| title_fullStr | Relay-Assisted Technology in Optical Wireless Communications: A Survey |
| title_full_unstemmed | Relay-Assisted Technology in Optical Wireless Communications: A Survey |
| title_short | Relay-Assisted Technology in Optical Wireless Communications: A Survey |
| title_sort | relay assisted technology in optical wireless communications a survey |
| topic | Relay-assisted technology optical wireless communications indoor optical wireless communications outdoor optical wireless communications underwater optical wireless communications |
| url | https://ieeexplore.ieee.org/document/9224713/ |
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