IEEE Communications Magazine
IEEE Communications Magazine > 2014 > 52 > 6 > 202 - 209
IEEE Communications Magazine > 2015 > 53 > 7 > 78 - 85
IEEE Communications Magazine > 2014 > 52 > 6 > 202 - 209
IEEE Communications Magazine > 2015 > 53 > 7 > 78 - 85