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IEEE Systems Journal > 2017 > 11 > 4 > 2247 - 2254
IEEE Internet of Things Journal > 2017 > 4 > 5 > 1399 - 1407
IEEE Access > 2017 > 5 > 25474 - 25486
IEEE Transactions on Wireless Communications > 2016 > 15 > 12 > 8406 - 8421