IEEE Communications Magazine
IEEE Communications Magazine > 2007 > 45 > 6 > 116 - 123
IEEE Communications Magazine > 2007 > 45 > 6 > 108 - 114
IEEE Communications Magazine > 2009 > 47 > 12 > 68 - 74
IEEE Communications Magazine > 2007 > 45 > 6 > 116 - 123
IEEE Communications Magazine > 2007 > 45 > 6 > 108 - 114
IEEE Communications Magazine > 2009 > 47 > 12 > 68 - 74