Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence
The performance of <italic>M</italic>-ary orbital angular momentum-shift keying (OAMSK) modulation-based underwater wireless optical communication (UWOC) system is investigated over oceanic turbulence with Laguerre–Gauss beam considered. On the basis of Rytov approximation, th...
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7982610/ |
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| author | Wei Wang Ping Wang Tian Cao Hongxin Tian Yan Zhang Lixin Guo |
| author_facet | Wei Wang Ping Wang Tian Cao Hongxin Tian Yan Zhang Lixin Guo |
| author_sort | Wei Wang |
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| description | The performance of <italic>M</italic>-ary orbital angular momentum-shift keying (OAMSK) modulation-based underwater wireless optical communication (UWOC) system is investigated over oceanic turbulence with Laguerre–Gauss beam considered. On the basis of Rytov approximation, the detection probability and power distribution among the received signals are derived. The conditional probability and symbol error rate (SER) are, then, achieved by the maximum likelihood estimation. With Blahut–Arimoto algorithm, the channel capacity for this UWOC system is obtained. The results show that the optimal transmitted OAM mode set <italic>S</italic> is mainly restricted by the interfering energy and decaying effective energy. With the optimal mode interval achieved, the SER performances for different modulation orders <italic>M</italic> and the minimum required transmitting power to reach the SER of <inline-formula> <tex-math notation="LaTeX">$P_{e} = $</tex-math></inline-formula> 10<sup>−9</sup> are sensitive to the variation in oceanic turbulence conditions. Additionally, the value of capacity will shift to a higher value with the increasing <italic>M</italic>, and a suitable <italic>M</italic> should be selected to balance the transmitting power consumption and capacity gain. This work is beneficial to <italic>M</italic>-ary OAMSK modulation-based UWOC system design. |
| format | Article |
| id | doaj-art-9bab987739334dab9b3a1eaad5bb9ae5 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-9bab987739334dab9b3a1eaad5bb9ae52025-08-20T03:31:21ZengIEEEIEEE Photonics Journal1943-06552017-01-019511510.1109/JPHOT.2017.27275057982610Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic TurbulenceWei Wang0Ping Wang1Tian Cao2Hongxin Tian3Yan Zhang4Lixin Guo5State Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaState Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaState Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaState Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaState Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaState Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaThe performance of <italic>M</italic>-ary orbital angular momentum-shift keying (OAMSK) modulation-based underwater wireless optical communication (UWOC) system is investigated over oceanic turbulence with Laguerre–Gauss beam considered. On the basis of Rytov approximation, the detection probability and power distribution among the received signals are derived. The conditional probability and symbol error rate (SER) are, then, achieved by the maximum likelihood estimation. With Blahut–Arimoto algorithm, the channel capacity for this UWOC system is obtained. The results show that the optimal transmitted OAM mode set <italic>S</italic> is mainly restricted by the interfering energy and decaying effective energy. With the optimal mode interval achieved, the SER performances for different modulation orders <italic>M</italic> and the minimum required transmitting power to reach the SER of <inline-formula> <tex-math notation="LaTeX">$P_{e} = $</tex-math></inline-formula> 10<sup>−9</sup> are sensitive to the variation in oceanic turbulence conditions. Additionally, the value of capacity will shift to a higher value with the increasing <italic>M</italic>, and a suitable <italic>M</italic> should be selected to balance the transmitting power consumption and capacity gain. This work is beneficial to <italic>M</italic>-ary OAMSK modulation-based UWOC system design.https://ieeexplore.ieee.org/document/7982610/Oceanic turbulenceunderwater wireless optical communicationmodulationorbital angular momentum. |
| spellingShingle | Wei Wang Ping Wang Tian Cao Hongxin Tian Yan Zhang Lixin Guo Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence IEEE Photonics Journal Oceanic turbulence underwater wireless optical communication modulation orbital angular momentum. |
| title | Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence |
| title_full | Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence |
| title_fullStr | Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence |
| title_full_unstemmed | Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence |
| title_short | Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence |
| title_sort | performance investigation of underwater wireless optical communication system using m ary oamsk modulation over oceanic turbulence |
| topic | Oceanic turbulence underwater wireless optical communication modulation orbital angular momentum. |
| url | https://ieeexplore.ieee.org/document/7982610/ |
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