On the unimportance of phase-coherent measurements for beampattern-assisted positioning

Josef Kulmer, Stefan Grebien, Michael Rath, Klaus Witrisal

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Accurate indoor radio positioning requires high-resolution measurements to either utilize or mitigate the impact of multipath propagation. This high resolution can be achieved using large signal-bandwidth, leading to superior time resolution and / or multiple antennas, leading to additional angle resolution. To facilitate multiple antennas, phase-coherent measurements are typically necessary. In this work we propose to employ non-phase-coherent measurements obtained from directional antennas for accurate single-anchor indoor positioning. The derived algorithm exploits beampatterns to jointly estimate multipath amplitudes to be used in maximum likelihood position estimation. Our evaluations based on measured and computer generated data demonstrate only a minor degradation in comparison to a phase-coherent processing scheme.

Original languageEnglish
Title of host publication2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781538617342
Publication statusPublished - 8 Jun 2018
Event2018 IEEE Wireless Communications and Networking Conference: WCNC 2018 - Barcelona, Spain
Duration: 15 Apr 201818 Apr 2018


Conference2018 IEEE Wireless Communications and Networking Conference

ASJC Scopus subject areas

  • Engineering(all)

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