Abstract: Zigbee is one of the most exciting wireless sensor
network (WSN) technologies for monitoring and control. In our
previous research, an integrated Zigbee RFID sensor network
was designed as an ‘all-in-one’ system solution for
Humanitarian Logistics Center (HLC) resource management.
Various field trials, which have justified the feasibility and
features of such a system structure, have also revealed the
requirement for simple yet reliable mobile tracking architecture
for Zigbee network. In this paper a connectionless tracking
architecture based on Zigbee RFID sensor network is proposed
for inventory management applications. Such architecture
features a consistent network structure, low hardware energy
consumption and no accumulated error for localization
algorithms with the least additional cost and hardware required
on top of the existing Zigbee RFID sensor network systems. A
simple demo system is also developed to demonstrate the
feasibility of our design
