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IEEE Transactions on Communications > 2017 > 65 > 7 > 2931 - 2942
IEEE Access > 2017 > 5 > 22735 - 22749
IEEE Transactions on Communications > 2015 > 63 > 11 > 4125 - 4141
China Communications > 2014 > 11 > 6 > 81 - 88
IEEE Transactions on Communications > 2014 > 62 > 8 > 2773 - 2789
IEEE Transactions on Wireless Communications > 2014 > 13 > 11 > 6015 - 6026
IEEE Communications Surveys & Tutorials > 2013 > 15 > 2 > 678 - 700