"Kyocera therefore developed a UWOC system. In a freshwater laboratory, the technology achieved a transmission speed of 5.2Gbps. This performance places the technology among the fastest wireless underwater communication systems ever demonstrated. Proprietary communication standard for underwater data The secret lies in the customized Physical (PHY) Layer that Kyocera developed for this application. Standard specifications for wireless communication borrow heavily from wired and general wireless technologies. These often fail underwater. Kyocera's communication standards, on the other hand, offer stability and capacity for underwater data transfer."
"Kyocera expanded the underwater bandwidth to over 1 GHz by developing an optical front-end circuit that fully utilizes the bandwidth characteristics of optical semiconductor components. With the higher bandwidth, users can send significantly more information in the same amount of time. Live underwater video streaming, sensor data transfer, and collaborative inspections become much faster and more reliable. The system achieves a data transfer rate approximately 2.5 times that of conventional underwater optical communication."
Kyocera demonstrated a UWOC system that reached 5.2 Gbps short-range underwater transmission in a freshwater laboratory, about 2.5 times faster than conventional underwater links. The system is intended to enable real-time exchange of large datasets for ocean research and underwater robots, overcoming the few-Mbps limits of audio-based underwater communication. A customized Physical (PHY) Layer was developed to address underwater-specific propagation issues rather than rely on wired or general wireless standards. An optical front-end circuit expands usable underwater bandwidth to over 1 GHz by leveraging optical semiconductor characteristics, improving capacity, stability, and real-time HD video and sensor sharing.
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