IEEE Communications Letters
IEEE Communications Letters > 2012 > 16 > 3 > 360 - 363
IEEE Communications Letters > 2012 > 16 > 11 > 1748 - 1751
IEEE Communications Letters > 2012 > 16 > 3 > 360 - 363
IEEE Communications Letters > 2012 > 16 > 11 > 1748 - 1751