IEEE Communications Letters
IEEE Communications Letters > 2012 > 16 > 2 > 180 - 182
IEEE Communications Letters > 2012 > 16 > 3 > 400 - 403
IEEE Communications Letters > 2012 > 16 > 2 > 180 - 182
IEEE Communications Letters > 2012 > 16 > 3 > 400 - 403