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IEEE Sensors Journal > 2017 > 17 > 20 > 6837 - 6844
IEEE Transactions on Green Communications and Networking > 2017 > 1 > 1 > 112 - 120
Wireless Personal Communications > 2016 > 90 > 2 > 729-747
IEEE Sensors Journal > 2015 > 15 > 7 > 4148 - 4155