Bluetooth Scatternets
n Multiple overlapping piconets (sets of communicating
devices) with own hopping sequence, max of one master
and 8 slaves
n Collisions do occur when two piconets use same frequency
at the same time
as more piconets overlap, performance degrades
degradation gradual: 10 overlapping piconets reduce aggregate
bandwidth by 10%
n Single device can participate in multiple piconets, though
only one at a time
need to re-adjust clock to re-sync with master when entering a
piconet
inform master when device leaves piconet, will suppress data being
sent/device being polled