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. 2021 Dec 22;22(1):26. doi: 10.3390/s22010026

Table 2.

Table of Notations and Abbreviations.

Abbreviation Full Form Abbreviation Full Form
AMF Access and Mobility Management Function M2M Machine-to-Machine
AT&T American Telephone and Telegraph mmWave millimeter wave
BS Base Station NGMN Next Generation Mobile Networks
CDMA Code-Division Multiple Access NOMA Non-Orthogonal Multiple Access
CSI Channel State Information NFV Network Functions Virtualization
D2D Device to Device OFDM Orthogonal Frequency Division Multiplexing
EE Energy Efficiency OMA Orthogonal Multiple Access
EMBB Enhanced mobile broadband: QoS Quality of Service
ETSI European Telecommunications Standards Institute RNN Recurrent Neural Network
eMTC Massive Machine Type Communication SDN Software-Defined Networking
FDMA Frequency Division Multiple Access SC Superposition Coding
FDD Frequency Division Duplex SIC Successive Interference Cancellation
GSM Global System for Mobile TDMA Time Division Multiple Access
HSPA High Speed Packet Access TDD Time Division Duplex
IoT Internet of Things UE User Equipment
IETF Internet Engineering Task Force URLLC Ultra Reliable Low Latency Communication
LTE Long-Term Evolution UMTC Universal Mobile Telecommunications System
ML Machine Learning V2V Vehicle to Vehicle
MIMO Multiple Input Multiple Output V2X Vehicle to Everything