IEEE Communications Magazine
IEEE Communications Magazine > 2006 > 44 > 5 > 59 - 65
IEEE Communications Magazine > 2007 > 45 > 8 > 78 - 86
IEEE Communications Magazine > 2007 > 45 > 12 > 62 - 69
IEEE Communications Magazine > 2008 > 46 > 10 > 74 - 85
IEEE Communications Magazine > 2010 > 48 > 1 > 40 - 44
IEEE Communications Magazine > 2010 > 48 > 2 > 102 - 109