p-BORE: Prioritized Beacon Repetition and Contention Window Selection Based MAC Protocol in Underwater Wireless Sensor Networks

The interest of Underwater Senor Networks (UWSNs) has increased recently due to the numerous applications in ocean exploration, submarine detection, intruder detection, etc. The protocols available for terrestrial networks cannot be used due to the salient features of UWSNs such as a high error ratio, long propagation delay, high packet loss and low data rate. Considering the uniqueness of UWSNs, proposing new energy efficient protocols for UWSNs is required. In this paper, we therefore propose a new MAC protocol called prioritized BeacOn REpetition and Contention Window Selection based MAC protocol (p-BORE) to conserve the energy and to give the priority for good link quality to transmit preferentially.