IEEE Communications Magazine
IEEE Communications Magazine > 2008 > 46 > 9 > 76 - 83
IEEE Communications Magazine > 2009 > 47 > 6 > 48 - 55
IEEE Communications Magazine > 2009 > 47 > 8 > 85 - 91
IEEE Communications Magazine > 2011 > 49 > 4 > 89 - 95
IEEE Communications Magazine > 2011 > 49 > 12 > 94 - 101
IEEE Communications Magazine > 2012 > 50 > 2 > 156 - 162