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IEEE Communications Letters > 2011 > 15 > 1 > 64 - 66
IEEE Transactions on Wireless Communications > 2011 > 10 > 4 > 1224 - 1231
IEEE Journal on Selected Areas in Communications > 2011 > 29 > 4 > 704 - 715
IEEE Communications Letters > 2011 > 15 > 6 > 626 - 628
IEEE Communications Magazine > 2011 > 49 > 5 > 64 - 69