IEEE Communications Magazine
IEEE Communications Magazine > 2007 > 45 > 7 > 108 - 116
IEEE Communications Magazine > 2007 > 45 > 7 > 92 - 99
IEEE Communications Magazine > 2008 > 46 > 1 > 138 - 145
IEEE Communications Magazine > 2008 > 46 > 8 > 75 - 79
IEEE Communications Magazine > 2008 > 46 > 9 > 184 - 191