ACKs	Acknowledgment messages
ADCs	Analog to Digital Converters
ADV	Advancement Distance
AUV	Autonomous Underwater Vehicle
DTN	Double Transmission Node
EBER2	An Energy Balanced Efficient and Reliable Routing Protocol
EDORQ	Energy-efficient Depth-based Opportunistic Routing with Q-Learning
EDOVE	Energy and Depth variance-based Opportunistic Void avoidance
EEDOR-VA	Energy Efficient Depth-based Opportunistic Routing protocol
EVA-DBR	Energy-efficient and Void Avoidance Depth Based Routing
GEDAR	GEographic and opportunistic routing with Depth Adjustment-based topology control for communication Recovery
HCREP	Hop-Count Reply
HCREQ	Hop-Count Request
HydroCast	A Hydraulic Pressure Based Anycast Routing Protocol
IoUTs	Internet of Underwater Things
IVAR	An Inherently Void Avoidance Routing Protocol for Underwater Sensor Networks
OR	Opportunistic Routing
OREPP	Opportunistic Routing based Expected Packet Progress
PCR	Power Control-based opportunistic Routing protocol
PDP	Packet Delivery Probability
QoS	Quality of Service
RPSOR	Reliable Path Selection and Opportunistic Routing
SEEORVA	Energy-Efficient Opportunistic Routing Protocol with Void Avoidance For Underwater Acoustic Sensor Networks
STN	Single Transmission Node
TORA	Totally Opportunistic Routing Algorithm
TWSNs	Terrestrial Wireless Sensor Networks
uw-sinks	underwater sinks
UWSNs	Underwater Wireless Sensor Networks
VAPR	Void-Aware Pressure Routing
VHGOR	Void Handling using Geo-Opportunistic Routing in underwater wireless sensor networks
WDFAD-DBR	Weighting Depth and Forwarding Area Division DBR routing protocol