B&W Edition] In order to examine the practices used by underwater sensor networks for successful off-shore deep sea deployments this book analyzes the underwater channel acoustic propagation model and also looks briefly at the characteristics of the underwater transducers along with the unique effect that they pose upon sonar based communication systems. The book then goes on to exploring the state of the art in underwater sensor network design paradigms followed by an analysis of areas that warrant research. A discussion on simulating such networks and an analysis of the characteristics of the underwater acoustic channel is also carried out.