IEEE Communications Surveys & Tutorials
IEEE Communications Surveys & Tutorials > 2017 > 19 > 1 > 377 - 396
IEEE Communications Surveys & Tutorials > 2017 > 19 > 2 > 1145 - 1172
IEEE Communications Surveys & Tutorials > 2017 > 19 > 1 > 377 - 396
IEEE Communications Surveys & Tutorials > 2017 > 19 > 2 > 1145 - 1172