Recent Advances and Challenges in Underwater Sensor Networks – Survey

2017 International Journal of Innovations in Engineering and Technology  
In underwater sensor networks (UWSNs), it is important to determine the location of all the sensors. Localization is the process of estimating the location of each node in a sensor network. There are only few localization schemes for UWSNs even though many localization algorithms have been proposed for terrestrial sensor networks. The characteristics of underwater sensor networks are fundamentally different from that of terrestrial networks. The physical layer environments with rigorous
more » ... h limitations are the main characteristic of underwater acoustic channels. A unique set of challenges are posed by the long propagation delays and the variable speed of sound under water for localization in UWSNs. This paper explores the different localization algorithms relevant to underwater sensor networks, and the challenges in meeting the requirements posed by emerging the applications for such networks, likes offshore engineering.
doi:10.21172/ijiet.81.014 fatcat:uddnsvebzba5xhzklzdpk4pngi