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IEEE Systems Journal > 2017 > 11 > 2 > 772 - 783
IEEE Access > 2017 > 5 > 20068 - 20082
IEEE Access > 2017 > 5 > 10709 - 10722
IEEE Journal on Selected Areas in Communications > 2016 > 34 > 12 > 3590 - 3605
IEEE Transactions on Computers > 2015 > 64 > 3 > 682 - 697