IEEE Communications Magazine
IEEE Communications Magazine > 2015 > 53 > 3 > 108 - 113
IEEE Communications Magazine > 2015 > 53 > 5 > 232 - 240
IEEE Communications Magazine > 2015 > 53 > 10 > 86 - 94
IEEE Communications Magazine > 2015 > 53 > 12 > 83 - 88