PERFORMANCE ANALYSIS OF VBF PROTOCOL IN UNDERWATER COMMUNICATION FOR ANCHORING NODES AND MOVING NODES

Underwater communication is a process of sending and receiving messages in water medium. Underwater
acoustics sensor networks are used to monitor various ocean parameters with help of autonomous underwater vehicles. It
uses acoustics waves to transmit data packets between the nodes. These data transmission gets interrupted by several
problems like Fading, Multipath propagation, Absorptions etc. This paper explains the concept of vector based forwarding
protocol for anchoring nodes and moving nodes. The simulation output is explained with graph plotted for time vs BER,
Data Throughput, Delay and PDR. On analyzing the output performance obtained from graph we can conclude that VBF is
an effectual protocol and it is more advantageous. The MATLAB has been not implemented since it has some drawbacks
like I) It does not provide information related to topologies, power model or other factors like packet transmission, losses, and collision between the nodes. II) It does not support Routing protocols. II) It is used for specific application and applied at lower layers only. Hence we have analyzed the VBF using AQUASIM tool to make it a veritable protocol. Keywords: AQUASIM, VBF-vector based forward BER-bit error rate, packet delivery ratio, anchoring nodes, central control n