Used for Home automation, consumer electronics, smart energy, automotive. It is alternative technology to replace cable for data communication. Zigbee works as per master-slave configurations. Star, tree, mesh topologies are supported. Physical layer, MAC layer, network, security and applicationīluetooth device can communicate with about 7 devices in one piconet region. Uses DSSS to convert bits/symbols to chips.Ĭore protocols- (Physical layer called baseband layer, Link Manager Protocol, Logical Link Control and adaptation protocol, Service Discovery Protocol),cable replacement protocol layer(RFCOMM)Įxisting protocols- PPP, TCP,UDP,IP,OBEX,WAE/WAP 2450MHz band provides about 250 kb/s data ratesīPSK(Binary Phase Shift Keying) for 868/915 MHz and OQPSK(Orthogonal QPSK) for 2450 MHz,
ISM bands country wise as mentioned below:ġ0 cm to 100 meters based on Bluetooth device power classġ0 to 100 meters based on transmit power, antenna etc.ĭevices as per Bluetooth 1.0 Specifications offer about 1 Mbps,ĭevices as per Bluetooth 2.0 offer up to about 3 Mbps.Ĩ68/915 band provides about 20/40Kb/s respectively.
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