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Table 1 List of acronyms

From: Realizing 5G vision through Cloud RAN: technologies, challenges, and trends

Acronym

Definition

5G

Fifth generation

A/D

Analog to digital

API

Application programming interface

BBU

Baseband unit

BS

Base station

CAPEX

Capital expenditure

CN

Core network

CoE

CPRI over Ethernet

CoMP

Coordinated multipoint

CPRI

Common public radio interface

C-RAN

Cloud radio access network

D/A

Digital to analog

ETSI

European telecommunications standards institute

FFT

Fast fourier transform

F-RAN

Fog RAN

HARQ

Hybrid automatic repeat request

H-RAN

Hybrid RAN

IIoT

Industrial Internet of Things

IoT

Internet of Things

ISG

Industry specification group

KPI

Key performance indicator

LTE

Long-Term Evolution

MIMO

Multiple input-multiple output

mmWave

Millimeter wave

NFV

Network function virtualization

NFV MANO

NFV management and orchestration

NFVI

NFV infrastructure

OFDM

Orthogonal frequency-division multiplexing

ONOS

Open network operating system

OPEX

Operating expenditure

ORI

Open radio interface

RAN

Radio access network

RE

Radio equipment

REC

Radio equipment controller

RF

Radio frequency

RRU

Remote radio head

SDMN

Software-defined mobile network

SDN

Software-defined networking

T-SDN

Transport SDN

VBBS

Virtual big base station

VBS

Virtual base station

VNF

Virtualized network function

WDM

Wavelength-division multiplexing

WSN

Wireless sensor network