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IEEE Transactions on Mobile Computing > 2010 > 9 > 5 > 672 - 685
IEEE Transactions on Mobile Computing > 2010 > 9 > 7 > 955 - 968
IEEE Transactions on Mobile Computing > 2010 > 9 > 6 > 796 - 809
IEEE Communications Letters > 2009 > 13 > 8 > 621 - 623