While wireless communication technology today has become part of our daily lives, the idea of wireless submarine communications may seem exaggerated. However, research has been active for more than a decade in designing methods for transmitting wireless underwater information. Significant advances have been made in terrestrial sensor networks to revolutionize detection and data collection. To bring the concept of long-life and density sensor networks to the underwater environment, there is an imperative need to develop low-cost, low-power acoustic modems for short-range communications. This post explains about Aqua's communication using a modem and presents the design and development of such a model. Sensor networks are beginning to revolutionize data collection in the physical world, relatively little work has been done to explore how sensor networks are applied underwater. Wireless communication, dense implementations (each sensor can have eight or more neighbors), autoconfiguration and local processing, and maximize the utility of any energy consumed. Our main application is seismic monitoring, with alternative applications including assistance during underwater construction, monitoring of pipelines and leaks, collection of biological data or underwater robotic communication. Sensor networks typically consist of many battery-powered nodes, densely deployed in an area for close observation and long-term monitoring.