Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors
Compared to intensity modulation with direct detection, coherent detection offers superior receiver sensitivity, higher spectral efficiency, and better background noise suppression. However, research on coherent detection in underwater wireless optical communication (UWOC) systems is relatively limi...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10854612/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1825207018828333056 |
|---|---|
| author | Jiashun Hu Yuexiang Wu Sunan Wang Weiqiang Wu Zaichen Zhang |
| author_facet | Jiashun Hu Yuexiang Wu Sunan Wang Weiqiang Wu Zaichen Zhang |
| author_sort | Jiashun Hu |
| collection | DOAJ |
| description | Compared to intensity modulation with direct detection, coherent detection offers superior receiver sensitivity, higher spectral efficiency, and better background noise suppression. However, research on coherent detection in underwater wireless optical communication (UWOC) systems is relatively limited. This paper investigates the average bit error rate (BER) performance of coherent UWOC systems employing different phase-shift keying schemes in the presence of phase errors. The underwater turbulent channel is characterized by the mixture exponential-generalized gamma distribution, taking into account the impact of pointing errors as well. Phase errors are modeled by a Gaussian distribution. Specifically, we first derive the average BER expressions for <inline-formula><tex-math notation="LaTeX">$M$</tex-math></inline-formula>-ary phase-shift keying (MPSK) under ideal carrier phase estimation. Then, we derive the exact average BER expressions for binary phase-shift keying and quadrature phase-shift keying, as well as tight approximations for MPSK, considering the influence of phase errors. Additionally, we provide asymptotic BER expressions in the high signal-to-noise ratio region and the BER floor expression. Finally, these expressions are validated through Monte Carlo simulations. |
| format | Article |
| id | doaj-art-573103485f48481388427871533eb54e |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-573103485f48481388427871533eb54e2025-02-07T00:00:12ZengIEEEIEEE Photonics Journal1943-06552025-01-011711910.1109/JPHOT.2025.353425810854612Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase ErrorsJiashun Hu0https://orcid.org/0000-0003-0779-116XYuexiang Wu1Sunan Wang2Weiqiang Wu3https://orcid.org/0009-0001-2400-3105Zaichen Zhang4https://orcid.org/0000-0003-4301-8713School of Electronic and Communication Engineering, Shenzhen Polytechnic University, Shenzhen, ChinaSchool of Electronic and Communication Engineering, Shenzhen Polytechnic University, Shenzhen, ChinaSchool of Electronic and Communication Engineering, Shenzhen Polytechnic University, Shenzhen, ChinaSchool of Integrated Circuit, Shenzhen Polytechnic University, Shenzhen, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing, ChinaCompared to intensity modulation with direct detection, coherent detection offers superior receiver sensitivity, higher spectral efficiency, and better background noise suppression. However, research on coherent detection in underwater wireless optical communication (UWOC) systems is relatively limited. This paper investigates the average bit error rate (BER) performance of coherent UWOC systems employing different phase-shift keying schemes in the presence of phase errors. The underwater turbulent channel is characterized by the mixture exponential-generalized gamma distribution, taking into account the impact of pointing errors as well. Phase errors are modeled by a Gaussian distribution. Specifically, we first derive the average BER expressions for <inline-formula><tex-math notation="LaTeX">$M$</tex-math></inline-formula>-ary phase-shift keying (MPSK) under ideal carrier phase estimation. Then, we derive the exact average BER expressions for binary phase-shift keying and quadrature phase-shift keying, as well as tight approximations for MPSK, considering the influence of phase errors. Additionally, we provide asymptotic BER expressions in the high signal-to-noise ratio region and the BER floor expression. Finally, these expressions are validated through Monte Carlo simulations.https://ieeexplore.ieee.org/document/10854612/Underwater wireless optical communication (UWOC)coherent detection<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <named-content content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX">$M$</tex-math> </inline-formula> </named-content> </named-content>-ary phase shift keying (MPSK)phase errorbit error rate (BER) |
| spellingShingle | Jiashun Hu Yuexiang Wu Sunan Wang Weiqiang Wu Zaichen Zhang Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors IEEE Photonics Journal Underwater wireless optical communication (UWOC) coherent detection <named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <named-content content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX">$M$</tex-math> </inline-formula> </named-content> </named-content>-ary phase shift keying (MPSK) phase error bit error rate (BER) |
| title | Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors |
| title_full | Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors |
| title_fullStr | Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors |
| title_full_unstemmed | Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors |
| title_short | Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors |
| title_sort | performance of coherent optical mpsk in underwater turbulent channels with phase errors |
| topic | Underwater wireless optical communication (UWOC) coherent detection <named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <named-content content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX">$M$</tex-math> </inline-formula> </named-content> </named-content>-ary phase shift keying (MPSK) phase error bit error rate (BER) |
| url | https://ieeexplore.ieee.org/document/10854612/ |
| work_keys_str_mv | AT jiashunhu performanceofcoherentopticalmpskinunderwaterturbulentchannelswithphaseerrors AT yuexiangwu performanceofcoherentopticalmpskinunderwaterturbulentchannelswithphaseerrors AT sunanwang performanceofcoherentopticalmpskinunderwaterturbulentchannelswithphaseerrors AT weiqiangwu performanceofcoherentopticalmpskinunderwaterturbulentchannelswithphaseerrors AT zaichenzhang performanceofcoherentopticalmpskinunderwaterturbulentchannelswithphaseerrors |