Wireless Communication - Zigbee, Bluetooth - IIIT
Wireless Communication - Zigbee, Bluetooth - IIIT
Wireless Communication - Zigbee, Bluetooth - IIIT
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<strong>Bluetooth</strong> Characteristics (I)<br />
Short range radio links intended to replace cables<br />
No line of sight required unlike IrDA<br />
Short range: 0-30 feet (10 meters) with power consumption of 4<br />
dBm (2.5 mW)<br />
Distance can be increased by amplifying the power<br />
Operates in the unlicensed band at 2.4 GHz also used by other<br />
devices such as 802.11, garage door openers, microwave etc.<br />
Higher probability of interference<br />
<strong>Bluetooth</strong> channel is divided into time slots each 625 uS in length<br />
Devices hop through these timeslots making 1600 hops per<br />
second
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