Distributed Crash Free Media Access Control Protocol for Underwater Sensor Network

Proliferation of sensor nodes utilizing acoustic link in underwater plays vital role to provide effective routing between sensor nodes to sink node for ocean monitoring. Interaction between nodes can be established via acoustic links, but acoustic wave has limitation due to lower bandwidth, fading effect due to multipath, lower data capacity and long propagation delay. Routing information from one node to another node shows tough challenges due to harsh environment and channel characteristics of acoustic signals in underwater. The main aim of this paper is to propose a Energy Conserving and Distributed Collision Free Media Access Protocol (DCF_MAC) for Underwater Acoustic Sensor Network (UASN) to manage the submerged MAC challenges, like the close far impact, spatial-fleeting vulnerability, and covered hidden terminal issues. DCF_MAC can utilize a different time allotment to each sensor node separately to impart without crash. The outcome shows that the proposed strategy outflanks regarding throughput, packer delivery ratio, energy utilization, and reasonableness under fluctuating offered loads.