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<p>UOWC (Underwater Optical Wireless Communication) provides an effective solution in aquatic environments, with high data rates, reasonable costs, and rapid response times. However, this system faces challenges such as light scattering and water absorption. Research efforts have focused on boosting performance and lengthening the communication range, where OOK-NRZ and OOK-CSRZ modulation schemes have been proposed. SISO and MIMO configurations have also been used to simulate optical transmission networks. The system effectiveness has been evaluated in different types of water and distances, including turbid, coastal, and clear water. The UOWC system was implemented in 4 × 4 MIMO configuration, and it showed its superiority over other systems in terms of link range and error rate. In turbid water conditions, the system achieved a communication range of about 23.3&#xa0;m at a transmission speed of 10 Gbps and a bit error rate of 4.99 × 10<sup>− 8</sup>. While in clear water, the link range was about 239&#xa0;m featuring a bit error rate of 4.23 × 10<sup>− 8</sup>. This system provides lower bit error rates and better transmission distances compared to previous technologies.</p>

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Effective signal modulation for robust underwater optical wireless networks

  • 期刊论文

  • 发表日期：

    2025年2月22日

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  • Hazim Adnan Mahdi,
  • Haider J. Abd,
  • Riyadh Mansoor,
  • Ahmed H. Janabi

摘要

UOWC (Underwater Optical Wireless Communication) provides an effective solution in aquatic environments, with high data rates, reasonable costs, and rapid response times. However, this system faces challenges such as light scattering and water absorption. Research efforts have focused on boosting performance and lengthening the communication range, where OOK-NRZ and OOK-CSRZ modulation schemes have been proposed. SISO and MIMO configurations have also been used to simulate optical transmission networks. The system effectiveness has been evaluated in different types of water and distances, including turbid, coastal, and clear water. The UOWC system was implemented in 4 × 4 MIMO configuration, and it showed its superiority over other systems in terms of link range and error rate. In turbid water conditions, the system achieved a communication range of about 23.3 m at a transmission speed of 10 Gbps and a bit error rate of 4.99 × 10− 8. While in clear water, the link range was about 239 m featuring a bit error rate of 4.23 × 10− 8. This system provides lower bit error rates and better transmission distances compared to previous technologies.