LSAB: Enhancing Spatio-Temporal Efficiency of AoA Tracking Systems

Qingrui Pan, Zhenlin An, Qiongzheng Lin, Lei Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Estimating the angle-of-arrival (AoA) of an RF source by using a large-sized antenna array is a classical topic in wireless systems. However, AoA tracking systems are not yet used for Internet of Things (IoT) in real world due to their unaffordable cost. Many efforts, such as a time-sharing array, emulated array and sparse array, were recently made to cut the cost. This work introduces a log-spiral antenna belt (LSAB), a new novel sparse "planar array" that could estimate the AoA of an IoT device in 3D space by using a few antennas connected to a single timeshare channel. Unlike the conventional arrays, LSAB deploys antennas on a log-spiral-shaped belt in a non-linear manner, following the theory of minimum resolution redundancy newly discovered in this work. One physical 8×8 uniform planar array (UPA) and four logical sparse arrays, including LSAB, were prototyped to validate the theory and evaluate the performance of sparse arrays. The extensive benchmark demonstrates that the performance of LSAB was comparable to that of a UPA, with similar degree of resolution; and LSAB could provide over 40% performance improvement than existing sparse arrays.
Original languageEnglish
Title of host publicationIEEE INFOCOM 2022 - IEEE Conference on Computer Communications
PublisherInstitute of Electrical and Electronics Engineers
Pages1858-1867
Number of pages10
ISBN (Electronic)978-1-6654-5822-1
ISBN (Print)978-1-6654-5823-8
DOIs
Publication statusPublished - 20 Jun 2022
Event2022 IEEE International Conference on Computer Communications - Virtual Conference
Duration: 2 May 20225 May 2022
https://infocom2022.ieee-infocom.org/

Publication series

NameProceedings IEEE INFOCOM
PublisherIEEE
ISSN (Print)0743-166X
ISSN (Electronic)2641-9874

Conference

Conference2022 IEEE International Conference on Computer Communications
Abbreviated titleINFOCOM 2022
Period2/05/225/05/22
Internet address

Keywords / Materials (for Non-textual outputs)

  • Radio frequency
  • Wireless communication
  • Costs
  • Three-dimensional displays
  • Redundancy
  • Planar arrays
  • Belts

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