IEEE Communications Letters
IEEE Communications Letters > 2012 > 16 > 7 > 964 - 967
IEEE Communications Letters > 2012 > 16 > 7 > 1137 - 1139
IEEE Communications Letters > 2012 > 16 > 7 > 1125 - 1128
IEEE Communications Letters > 2012 > 16 > 7 > 1018 - 1021
IEEE Communications Letters > 2012 > 16 > 8 > 1300 - 1303