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Low Power Location Protocol based on ZigBee Wireless Sensor Networks

Brás, L. ; Carvalho, N.B.C. ; Pinho, P.

Low Power Location Protocol based on ZigBee Wireless Sensor Networks, Proc ETH Zurich - International Conf. on Indoor Positioning and Indoor Navigation - IPIN, Zurich, Switzerland, Vol. , pp. 1 - 7, September, 2010.

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Typical ZigBee location applications consume
signifcant amounts of power when end devices receive
messages for confguration and synchronization. These
intervals ofen consume more power than the transmission
process reducing signifcantly the devices battery life time.
This paper describes an implemented ZigBee low power
consumption location protocol, achieved by reducing end
devices communication intervals and developing a proper
router and coordinator frmware. This protocol allows two
diferent forms of location: proximity and multi-RSSI
(Received Signal Strength Indication) reference nodes
location. In the frst mode, position of end devices is related
with its nearest reference node location; in the second one,
several neighbors RSSI values are provided, being the base
for more complex algorithms such as triangulation or
fngerprinting. Another capability of this protocol is the
identifcation of non functional reference nodes and the
possibility to generate alert signals sent by the end device.