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IEEE Transactions on Information Theory > 2012 > 58 > 2 > 897 - 908
IEEE Communications Letters > 2011 > 15 > 4 > 389 - 391
IEEE Transactions on Communications > 2008 > 56 > 7 > 1080 - 1091
IEEE Communications Letters > 2007 > 11 > 12 > 949 - 951