Wave-propagation management in indoor environments using micro-radio-repeater systems
Abstract
This paper investigates the ability of micro-radio repeaters for managing wave propagation by enhancing signal coverage for the nodes of a mobile ad-hoc network in a complex environment. Such radio repeaters can be considered to be scatterers with a large radar cross section (RCS). Strategically positioning them enables a chain of line-of-sight (LoS) propagation between the transmitter and receiver when the straight signal path is blocked by obstacles such as walls. To specify repeater parameters, wave propagation in various hallway junctions were analyzed using a ray-tracing method that accounted for reflection, penetration, and diffraction. By adding the repeater model to such propagation models, the ability of micro-radio-repeater systems to enhance wave propagation in indoor environments was demonstrated. The results were verified with various measurement examples using a bench-top repeater system at 2.4 GHz. To allow multiple access through a single repeater, a simple repeater structure, composed of two omnidirectional antennas and one amplifier with sufficient gain, was considered. Measurement results indicated that in the chosen various indoor scenarios, a repeater system with an active gain of more than 35 dB with omnidirectional antennas could present scattering larger than typical building diffraction, and thus could enhance signal connectivity at 2.4 GHz.
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Indoor positioning is still far from maturity because of the complex indoor electromagnetic propagation environment.
“However, indoor positioning is still far from maturity, because of the complex indoor electromagnetic propagation environment [35].”
From What should 6G be? (2020) · cites this paper as [35]
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Dang, S., Amin, O., Shihada, B., & Alouini, M.-S. (2020) · Nature Electronics · doi:10.1038/s41928-019-0355-6 · Cited by 1,790 · see citing works
- Authors
- Oh, J., Thiel, M., & Sarabandi, K.
- Affiliations
- University of Michigan (US)
- Venue
- IEEE Antennas and Propagation Magazine
- Published
- 2014-04
- Volume
- 56
- Issue
- 2
- Pages
- 76-88
- ISSN
- 1045-9243 (ISSN-L)
- OpenAlex
- W1972536542
- Cited by
- 37
- References
- 16
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 1 · 2023: 3 · 2022: 1 · 2021: 15 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 3 · 2015: 1 · 2014: 1 · 2012: 1
- FWCI
- 1.06
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Antennas and Propagation Magazine (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Millimeter-Wave Propagation and Modeling
- Physical Sciences › Computer Science › Computer Networks and Communications › Mobile Ad Hoc Networks
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Indoor and Outdoor Localization Technologies
- Keywords
- mobile ad hoc networks, line-of-sight propagation, repeater placement, radar cross section, ray tracing, diffraction, 2.4 GHz, omnidirectional antenna
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