AIS	Automatic Identification System
ASDU	Application Service Data Unit
C/N	carrier to noise ratio
CSMA/CA	Carrier sense multiple access with collision avoidance
CTS	Clear to Send
DIFS	Distributed Inter Frame Space
EMSA	Agencia Europea de Seguridad Marítima.
FDM	Frequency-division multiplexing
FEU	Forty-feet equivalent unit
GEO	Geostationary Earth Orbit
GNSS	Global Navigation Satellite Systems
GPS	Global Positioning System
HTS	High Throughput Satellite
IMO	Organización Marítima Internacional
INCOTERMS	International Commercial Terms
IoS	Internet of Ships
IoT	Internet of Things
IoT-MTS	IoT-improved MTS
ISO	International Standard Organization
IT	intelligent transportation
LEO	Low Earth Orbit
LoRa	Long Range
LPWAN	Low Power Wide Area
MEO	Medium Earth Orbit
MTS	maritime transport sector
NB-IoT	Narrow Band Internet of Thing
NNTT	Nuevas tecnologías aplicables al transporte
PAN	Personal Area Network Identification)
PLC	Power Line Communications
Ro-Ro	Roll on–Roll Off
RTS	Request to Send
SatCom	satellite communications
SIFS	Short Inter Frame Space
SOLAS	Safety of Life at Sea
TEU	Twenty-feet equivalent unit
TLA	Three letter acronym
UE	Unión Europea
UNCTAD	Conferencia de las Naciones Unidas sobre Desarrollo y Comercio
WLAN	Wireless Local Area Network
WSN	Wireless Sensor Network
WWAN	Wireless Wide Area Network