Exploiting the Loss-Frequency Relationship using RF Communication in Underwater Communication Networks

This paper presents detailed description of the graphical relationship between propagation characteristics of electromagnetic waves; skin depth, total path loss and frequency for different values of distance and conductivity of the water medium for the purpose of Underwater communication. The main challenge of this type of communication is how far we can communicate without much degradation of main signal strength. Radio frequency is one of the means, which can be used for signal transmission purposes most sophistically. Major factor of this communication system is loss of RF energy due to the propagation of waves in water medium. Mainly path loss depends on transmission distance, signal frequency & conductivity of the medium. Finally our analysis shows that optimum propagation distance under water can be achieved by proper selection of the signal frequency.