A Test of Cross-border Magnetic Induction Communication from Water to Air

In the Underwater Sensor Network (UWSN), the cross-border communication between the underwater sensor carrier and the water data center has important practical significance. At present, under-water acoustic communication and sea surface relay is mostly adopted by the cross-border communication, but the communication performance will be challenged by the complex propagation characteristics of mixed channels near the sea surface. The magnetic induction field can directly propagate across the air-water interface and is insensitive to time-varying, multipath channels. This paper analyzes the propagation characteristics of the seaair transboundary magnetic induction field and develops a transboundary magnetic induction communication test system and conducts a transboundary communication test from underwater to air. The test results show that cross-border magnetic induction communication is feasible and reliable from water to air.