IEEE Communications Letters
IEEE Communications Letters > 2013 > 17 > 5 > 904 - 907
IEEE Communications Letters > 2013 > 17 > 5 > 924 - 927
IEEE Communications Letters > 2013 > 17 > 5 > 904 - 907
IEEE Communications Letters > 2013 > 17 > 5 > 924 - 927