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No Strings Attached For Underwater Video System

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Abdullah Al-Halafi checks the received optical signal power through the underwater channels.

Researchers at Saudi Arabia's King Abdullah University of Science and Technology have developed a flexible, cost-effective technology for streaming high-quality underwater video images.

Credit: KAUST

Researchers at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia say they have developed a flexible underwater wireless video system.

"We first built the real-time video transmission system and then integrated it into an [underwater wireless optical communication (UWOC)] setup," says KAUST's Abdullah Al-Halafi. "Although the design and development of the system were very challenging, its ability to be programmed enabled us to reconfigure the system into several different arrangements."

Al-Halafi notes the new UWOC system can stream high-quality live video of upgraded quality due to bandwidth enhancements.

The team improved the accuracy of the detected signal by first applying quadrature amplitude modulation to boost the representation of information carried by the signal for a given bandwidth, and then they compared it to phase-shift keying while optimizing the transmission for each configuration.

"Our system produced the highest-quality video streaming so far achieved in UWOC systems and provides a reconfigurable and cost-effective communications system for underwater live video streaming," Al-Halafi says.

From KAUST Discovery
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