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Underwater wireless communication has become an essential field of study as conveying information in aqueous environments has become critical to many industries. Three methods of wireless communication are currently used in this aqueous environment, electromagnetic (EM), optics, and acoustics. Although these methods enable us to communicate underwater, they often face high attenuation and distortion, and are subject to the hostile environment.
This research investigates magnetic induction (MI) as an alternate form of communication that allows effective and clear signal processing and communication over longer distances. Magnetic induction was compared to the other three forms of communication in terms of attenuation, data rates, effects from the environment, propagation distance, stealth, and cost in order to highlight the advantages of magnetic induction as a powerful and efficient form of underwater communication. This method primarily utilizes conducting coils to create time-varying magnetic fields, which generate flux and facilitate communication. Furthermore, similar to other forms of communication, signal processing is extensively used to best convey messages across this medium.
The results of this study provide valuable insight into magnetic induction and how it can be employed to effectively transmit clear signals over longer distances, presenting it as an powerful method for communication underwater and the future of communication as a whole.