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IEEE Communications Surveys & Tutorials > 2014 > 16 > 4 > 2037 - 2064
IET Communications > 2014 > 8 > 13 > 2256 - 2263
IEEE Journal on Selected Areas in Communications > 2013 > 31 > 9-supplement > 548 - 572
IEEE Communications Surveys & Tutorials > 2014 > 16 > 4 > 2037 - 2064
IET Communications > 2014 > 8 > 13 > 2256 - 2263
IEEE Journal on Selected Areas in Communications > 2013 > 31 > 9-supplement > 548 - 572