id	keyword
sc-1138	smart
sc-1138	blockchain
sc-1138	cities
sc-1138	security
sc-1138	city
sc-1138	ieee
sc-1138	information
sc-1138	data
sc-1138	technology
sc-1138	network
sc-1138	system
sc-1138	iot
sc-1138	international
sc-1138	authors
sc-1138	conference
sc-1138	ecosystem