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IEEE Transactions on Communications > 2015 > 63 > 3 > 605 - 616
IEEE Communications Letters > 2011 > 15 > 2 > 226 - 228
IET Communications > 2011 > 5 > 10 > 1361 - 1367
IEEE Transactions on Communications > 2009 > 57 > 7 > 1986 - 1993