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 language | English |
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Title of host publication | IEEE INFOCOM 2022 - IEEE Conference on Computer Communications |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1858-1867 |
Number of pages | 10 |
ISBN (Electronic) | 978-1-6654-5822-1 |
ISBN (Print) | 978-1-6654-5823-8 |
DOIs | |
Publication status | Published - 20 Jun 2022 |
Event | 2022 IEEE International Conference on Computer Communications - Virtual Conference Duration: 2 May 2022 → 5 May 2022 https://infocom2022.ieee-infocom.org/ |
Publication series
Name | Proceedings IEEE INFOCOM |
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Publisher | IEEE |
ISSN (Print) | 0743-166X |
ISSN (Electronic) | 2641-9874 |
Conference
Conference | 2022 IEEE International Conference on Computer Communications |
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Abbreviated title | INFOCOM 2022 |
Period | 2/05/22 → 5/05/22 |
Internet address |
Keywords / Materials (for Non-textual outputs)
- Radio frequency
- Wireless communication
- Costs
- Three-dimensional displays
- Redundancy
- Planar arrays
- Belts