A Directional Selective Power Routing Protocol for the Internet of Underwater Things

Table 1

IoUT vs IoT features and challenges.

Feature	IoUT	IoT
Communication medium	Acoustic waves	Radio wave
Propagation speed
Transmission range	100–10 000 meters	10–100 meters
Localization	Expensive algorithms	Cheap with GPS
Modem	Expensive large/acoustic	Cheap small/radio
Transmission power	Up to 10 s of watts	In milliwatts
Data rate	In 10’s of kbps	In Mbps
Deployment architecture	Mostly 3D	Mostly 2D
Mobility	Affected by water current	Easily tracked