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We present a 3-tier UWB-based indoor localization system. It consists of a large number of energy-scavenging-based cost-effective transmit-only tags, a small number of battery powered hubs as relay stations and a few base stations. This hierarchical scheme is driven by the energy available at each node. Localization is based on the arrival time of the UWB pulses at reference nodes.We describe how...
Ultra-wideband (UWB) enabled wireless sensor networks (WSNs) are capable of identification, localization and recording of sensor readings. For reasons of cost, size and above all energy consumption constraints, scavenging-based ultra-lower-power (ULP) sensor nodes (SNs) are designed with only UWB transmitters. Transmit-only SNs are unaware of each other and broadcast data packets as soon as enough...
In this paper, a hierarchical indoor localization scheme is proposed to enable the use of autonomously powered ultra-low-power tags attached to the objects with unknown position. Using the UWB characteristics and the 3-tier organization (consisting of a large number of cost-effective tags, a small number of cheap and low-power hubs and a few synchronized base stations), the proposed localization scheme...
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