IEEE Communications Letters
IEEE Communications Letters > 2012 > 16 > 3 > 296 - 299
IEEE Communications Letters > 2012 > 16 > 7 > 1006 - 1009
IEEE Communications Letters > 2012 > 16 > 3 > 296 - 299
IEEE Communications Letters > 2012 > 16 > 7 > 1006 - 1009