Acoustic Data Transmission is the process of sending information using sound waves through air, solids, or water. At NEC Labs America, this approach is explored in underwater sensing and distributed fiber systems where electromagnetic signals are less effective. Applications include subsea cable monitoring, marine communication, and security systems. Acoustic Data Transmission enables reliable connectivity in environments where traditional wireless methods cannot operate
We demonstrate fiber-optic acoustic data transmission using distributed acoustic sensing technology in an underwater environment. An acoustic orthogonal frequencydivisionmultiplexing (OFDM) signal transmitted through a fiber-optic cable deployed in a standard 40-meter-scale underwater testbed.
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NEC Laboratories America, Inc. (NEC Labs) is the US-based center for NEC Corporation’s global network of corporate research laboratories. Our diverse research groups collaborate with industry, academia and governments to provide disruptive solutions to complex problems. A leader in the integration of IT and network technologies with more than 100 years of expertise, NEC provides a combination of products and solutions that cross-utilize the company’s experience and global resources to meet the complex and ever-changing needs of its customers.