IEEE Communications Magazine
IEEE Communications Magazine > 2008 > 46 > 8 > 75 - 79
IEEE Communications Magazine > 2011 > 49 > 1 > 118 - 123
IEEE Communications Magazine > 2008 > 46 > 8 > 75 - 79
IEEE Communications Magazine > 2011 > 49 > 1 > 118 - 123