W ireless data communication in the underwater environment started with the measurement of the sound velocity underwater in 1826. After that, it gained a strong acceleration with the submarine technology developed during the 1st and 2nd World Wars [1]. Today, high-speed real-time underwater wireless data communication is in huge demand in many commercial and military applications such as ocean exploration, offshore oil industry, remote controlled unmanned underwater vehicles, port security and control [2,3].In underwater environment, data can be transmitted wirelessly by three types of waves: electromagnetic, acoustic and optical [4]. Since the electromagnetic waves attenuate rapidly in the underwater environment, the data communication distance and speed can be achieved at 10 m and Mbps levels, respectively [4,5]. Low frequencies are used in these systems because electromagnetic waves are attenuated less at lower frequenci-Article History:
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