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IEEE Transactions on Wireless Communications > 2011 > 10 > 2 > 648 - 659
IEEE Transactions on Signal Processing > 2011 > 59 > 2 > 854 - 858
IEEE Communications Letters > 2011 > 15 > 5 > 530 - 532
IET Communications > 2011 > 5 > 5 > 709 - 718
IEEE Transactions on Wireless Communications > 2011 > 10 > 4 > 1232 - 1241
IEEE Communications Letters > 2009 > 13 > 2 > 106 - 108