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IEEE Transactions on Mobile Computing > 2018 > 17 > 1 > 44 - 57
IEEE Access > 2017 > 5 > 9422 - 9438
IEEE Transactions on Mobile Computing > 2014 > 13 > 7 > 1409 - 1423
IEEE Communications Surveys & Tutorials > 2012 > 14 > 2 > 279 - 298