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IEEE Systems Journal > 2017 > 11 > 2 > 661 - 672
IEEE Transactions on Communications > 2017 > 65 > 8 > 3359 - 3373
IEEE Internet of Things Journal > 2016 > 3 > 4 > 520 - 532
IEEE Communications Surveys & Tutorials > 2016 > 18 > 2 > 1453 - 1499
IEEE Communications Surveys & Tutorials > 2016 > 18 > 2 > 1123 - 1152