IEEE Communications Magazine
IEEE Communications Magazine > 2010 > 48 > 2 > 66 - 69
IEEE Communications Magazine > 2011 > 49 > 6 > 62 - 69
IEEE Communications Magazine > 2011 > 49 > 9 > 48 - 55
IEEE Communications Magazine > 2012 > 50 > 8 > 102 - 109
IEEE Communications Magazine > 2014 > 52 > 4 > 136 - 144