Abstract
As far as terrestrial applications, underwater wireless communication is not a straight forward process. The objective of this wireless underwater communications can be established by Li-Fi technology along with the use of LED and photodiode. The Li-Fi module passes the message to the destination underwater. Underwater communication is required in many applications such as the transfer of messages and speech transmission between submarine ships, Scuba drivers, etc., and to track lost ships and located down planes. Since Li-Fi technology used in underwater communication can be done the data rate would be near as the terrestrial data communications. Since the transmitted signal is in encoded form, so the hacker cannot track the signals easily, so the privacy/Security of information is obtained. So that data is not last.
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