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IEEE Communications Letters > 2011 > 15 > 1 > 43 - 45
IEEE Communications Magazine > 2011 > 49 > 6 > 56 - 61
IEEE Journal on Selected Areas in Communications > 2009 > 27 > 2 > 191 - 201
IEEE Transactions on Mobile Computing > 2009 > 8 > 12 > 1585 - 1595
IEEE Communications Magazine > 2007 > 45 > 4 > 96 - 102