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Large-Scale Parameter Estimation in Channel Sounding with Limited Dynamic Range

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Abstract

In this paper, we examine large-scale parameter (LSP) estimates for spatio-temporal mobile radio channels in the case when the measurement dynamic range is too poor to derive the LSPs for all the measurement locations. Conventionally the LSPs are derived with, e.g., 20 dB dynamic range from the strongest detected multipath component (MPC), but such a measurement dynamic range cannot be guaranteed in all measurements as some of them suffer from large path loss (PL) and/or variation due to shadow fading (SF). We will show that the LSPs, specifically PL, SF, delay spread (DS), and angular spread (AS), can be considered as incomplete data. Incomplete data can be described either by a maximum or a minimum value (or both) when the measurements are with poor dynamic range. We show that the incomplete data should be taken into account in deriving the LSP statistics using the maximum likelihood estimation (MLE) rather than omitted as outage. Outdoor-to-indoor (O2I) measurements at the 14-14.5 GHz range are used as an example.

Original languageEnglish
Title of host publicationProceedings of the European Conference on Antennas and Propagation
PublisherEurAAP Italia
ISBN (Electronic)978-88-907018-8-7
Publication statusPublished - 1 Mar 2019
MoE publication typeA4 Conference publication
EventEuropean Conference on Antennas and Propagation - Krakow, Poland
Duration: 31 Mar 20195 Apr 2019
Conference number: 13
http://www.eucap2019.org/

Publication series

NameProceedings of the European Conference on Antennas and Propagation
ISSN (Print)2164-3342

Conference

ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEuCAP
Country/TerritoryPoland
CityKrakow
Period31/03/201905/04/2019
Internet address

Funding

ACKNOWLEDGMENT The research leading to these results received funding from the LuxTurrim5G project funded by the participating companies and Business Finland. The authors would like to thank Pasi Koivummäki, Sinh Nguyen, Usman Virk, Vasilii Semkin, Jyri Putkonen, and Pekka Wainio for help during the measurements.

Keywords

  • channel models
  • incomplete data
  • maximum likelihood estimation
  • measurement
  • modeling
  • outdoor-to-indoor propagation
  • radiowave propagation
  • short-range communications

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