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Hybrid cross layer mechanism for high reliability in under water wireless sensor network

Under water sensor network finds lot of applications in sea environment monitoring. Tsunami like conditions can be monitored and reported earlier so that people on shores can be safe. Due to nature of medium, the data delivery ratio in under water sensor networks is very low. The various problems in the underwater sensor networks are medium significant delay, Double-side-spreading, Doppler- spreads, frequency-selective fading and limited bandwidth. These problems reduce the data delivery ratio. In this work hybrid cross layer method with mechanisms in physical, data link and routing layer are proposed to increase the reliability of underwater wireless sensor networks.