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Bluetooth (idea (ad-hoc wireless connnectivity, 10m -100m, low consumption…
Bluetooth
idea
ad-hoc wireless connnectivity
10m -100m
low consumption
voice & data transmission = 1mbps
bluetooth 2.0 = 3mbps
piconet
group of devices connected in adhoc manner
one master determines the hopping pattern
up to 7 slaves
active mode
sending and recieving to master
sniffing mode
reduced number of slots
holding mode
reduced power and can participate in other piconet
up to 200+ parked
master is aware
standby
do not participate in piconet
scatternet
multiple piconet
bridge device may be a master in one pico and a slave in another
FH-CDMA to seperate piconets
physcal links