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Table 1 Wireless technologies comparison

From: Remote temperature monitoring device using a multiple patients-coordinator set design approach

Descriptions ZigBee Bluetooth Wi-Fi
Applications Control and monitoring, sensor networks Wireless connection between devices Wireless LAN, internet access
Data rate 20,40, and 250 kbps 1 Mbps 11 and 55 Mbps
Frequency band 868 MHz, 900-928 MHz, and 2.4GHz 2.4GHz 2.4 and 5 GHz
Range (meters) 10-100 10 50-100
Nodes per network 65,000 7 30
Memory 32-60 Kb 100 Kb 100 Kb
Topology Star, tree, and mesh Tree Tree
Complexity Low High High
Power consumption Very low Medium High
Standby current 3 μA 200 μA 20 μA