IEEE Communications Letters
IEEE Communications Letters > 2012 > 16 > 3 > 420 - 423
IEEE Communications Letters > 2012 > 16 > 10 > 1572 - 1575
IEEE Communications Letters > 2012 > 16 > 3 > 420 - 423
IEEE Communications Letters > 2012 > 16 > 10 > 1572 - 1575