IEEE Communications Surveys & Tutorials
IEEE Communications Surveys & Tutorials > 2017 > 19 > 2 > 1225 - 1248
IEEE Communications Surveys & Tutorials > 2017 > 19 > 2 > 1027 - 1053
IEEE Communications Surveys & Tutorials > 2017 > 19 > 2 > 1225 - 1248
IEEE Communications Surveys & Tutorials > 2017 > 19 > 2 > 1027 - 1053