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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 ÎĽA

200 ÎĽA

20 ÎĽA