Managing Crowds with Wireless and Mobile Technologies

Table 1

Communication protocols of WSNs/RFID.

Protocol	Range	Devices/Nodes	Power Consumption & Cost	Bandwidth
Wi-Fi IEEE-802.11 WLAN (2,3,4G)	30 m	128 devices	More power and cost	10-100 Mb/s
Bluetooth-802.15.1 WPAN	10 m	8 devices	Less power and cost	1 Mb/s
ZigBee-802.15.4 Low Power	10-70 m	65000 nodes	Lowest power and cost	250 kb/s