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Table 1 IoT Enabling technologies and their greening strategies

From: Greening emerging IT technologies: techniques and practices

IoT Enabler Type Communication Paradigm Data transfer Power source Life-time Greening strategies
RFID Active tags Two ways Low Battery ≤5 Energy-efficient algorithms and protocols
  Passive tags One way Very low Harvested  
Sensing network Smart object Central Low Battery ≤5 Sleep wake-up, data reduction mechanisms
  Mobile sensing P2P High Battery ≤2  
Internet technologies Cloud Client/Server Very low Grid ≤10y r s Turn off unrequired facilities, Minimize data path length
  Future internet Distributed Very low Grid