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Table 1 Abbreviation

From: CMCS: a cross-layer mobility-aware MAC protocol for cognitive radio sensor networks

Acronym

Description

ACK

Acknowledgment

ACL

Available channel list

ACTS

Acknowledgment clear to send

BS

Base-station

CCC

Common control channel

CHEV

Cluster-head election value

CHs

Cluster heads

CM

Cluster member

CnHS

Channel hoping sequence

CR

Cognitive radio

CRAHNs

Cognitive radio ad hoc networks

CRNs

Cognitive radio networks

CRSN

Cognitive radio sensor network

CSMA

Carrier-sensing multiple access

CSMA/CA

Carrier-sensing multiple access/collision avoidance

CTS

Clear to send

DSA

Dynamic spectrum access

FCC

Federal Communications Commission

GW

Gateway nodes

HPM

Historical prediction model

MAC

Medium access control

MANET

Mobile ad hoc network

NCC

Next control channel

OSA

Opportunistic spectrum access

PER

Primary exclusive region

PHY

Physical

PUs

Primary users

RSS

Receiver spectrum sensing

RSSI

Radio signal strength indicator

RTS

Ready to send

SNR

Signal-to-noise ratio

SUs

Secondary users

TSF

Timer synchronization function

TSS

Transmitter spectrum sensing

VANET

Vehicular ad hoc network

WMNs

Wireless mesh networks

WSN

Wireless sensor network