Abstract

Underwater communication has become a crucial information transmission technology, wide applied in remote control in the offshore oil business, pollution monitoring in environmental systems, collection of scientific information recorded at ocean-bottom stations, disaster detection and early warning, national security and defence(underwater surveillance), moreover as for the invention of recent natural resources .Thus, analysis of underwater wireless communication techniques plays a most significant role in additional exploring oceans and different aquatic environments. Many research challenges within the acoustics domain, specifically achieving high throughput and frequency utilization efficiencies whereas adapting to restricted spectrum and slow acoustic propagation rate. Modulation and decoding schemes for reliable high-data rate transmission whereas overcoming the time-varying and severely attenuated acoustic signal channel. spectrum and power-efficiency optimizations for improving underwater wireless communication performance with limited bandwidth and computing/power resources.