Performance evaluation of an indoor localization protocol in a 802.15.4 sensor network

Nowadays there are many indoor localization systems, which use a sensor network as general platform. In this work, the protocol for localization “Highly Configurable Protocol” (HCP) [1] was implemented in a 802.15.4 test-bed forming a tree topology. Our goal was to empirically investigate how the limitations of a IEEE 802.15.4 sensor network affect the performance of HCP in the localization process, principally in the transmission of localization information across the network. The obtained results allowed to identify not only the causes of packet losses in the network, but also possible improvements to increase the efficiency of HCP and the scalability of the localization system.