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Low-complexity PDoA-based localization

: Sackenreuter, Benjamin; Hadaschik, Nils; Faßbinder, Marc; Mutschler, Christopher


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Instrumentation and Measurement Society:
International Conference on Indoor Positioning and Indoor Navigation, IPIN 2016 : 4-7 October 2016, Madrid, Spain
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-5090-2425-4
ISBN: 978-1-5090-2424-7
ISBN: 978-1-5090-2426-1
International Conference on Indoor Positioning and Indoor Navigation (IPIN) <7, 2016, Madrid>
Conference Paper
Fraunhofer IIS ()
Tracing und Tracking; Drahtloses Netzwerk

Localization of wireless nodes within the loT received much attention lately. However, strong constraints on power consumption, scalability, and complexity of the nodes pose a big challenge for localization techniques. This paper presents a concept for energy-efficient low-complexity localization based on Phase Difference of Arrival (PDoA). Besides a novel method for reference transmitter selection we propose a waveform, wellsuited for PDoA measurements, and evaluate its ranging performance. We compare multiple signal classification (MUSIC), linear fitting, and mean phase difference and compare their estimation variance to the Cramer Rao Lower Bound (CRLB). Our system concept allows for the mitigation of near-far effects for reference and tag signals at the receiver nodes, and an efficient implementation of a wide band frequency hopping scheme.