Performance analysis of VBF protocol for position tracking of moving nodes in underwater communications

Underwater acoustic communication is proving its excellence for the past 30 years. The main reason for vast research is the high demand in various application like Oceanography, Marine commercial operation, oil exploration, Tsunami alerts, underwater observation as wells as intervention. Effective and fast communication is the most challenging factor in underwater communication because the High frequency radio signal and Low frequency does not support effectively because of fading and severe bandwidth limitation. The best suited is acoustic signal which travel in the speed of 1.5*10 3 m/s hence efficient protocol is needed to overcome several obstacles like Signal Fading, Multipath propagation and ambient Noise interferences. This paper proposes a vector based forward routing protocol to identify the position of movable nodes and tracking it for effective communication in underwater networks. The performance analysis studied using AQUASIM tool simulator for both anchored and movable nodes. The simulation result shows improved packet delivery ratio, data throughput & BER.