IEEE Communications Letters
IEEE Communications Letters > 2012 > 16 > 1 > 19 - 21
IEEE Communications Letters > 2012 > 16 > 8 > 1161 - 1164
IEEE Communications Letters > 2012 > 16 > 1 > 19 - 21
IEEE Communications Letters > 2012 > 16 > 8 > 1161 - 1164