Simple Dipole Scatter for Filling a Shadow Region

Zabihi, Roshanak; Hynes, Christopher G.; Vaughan, Rodney G.

doi:10.1109/ieeeconf35879.2020.9330310

Cited by 2 publications

(1 citation statement)

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“…Recently, there have been a number of works that have attempted to overcome the issue of diffraction loss in wireless systems. In [16], [17], the authors have proposed the use of arrays of dipole antennas fitted along the corner 1 of a building to exploit scattering and re-radiate impinging waves towards the shadow region. A multi-point approach, based on a series of repeaters (made up of two antennas and an amplifier), was presented in [18] to improve signal propagation through various stages of an indoor non-LOS wireless link at 2.45 GHz.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Intelligent Edges: Illuminating the Shadow Region in Wireless Networks

Cotton¹,

Abbasi²,

Machado³

et al. 2022

IEEE Access

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This paper proposes a new wireless enabling technology for future smart radio environments. The approach aims to enhance signal coverage within the shadow region(s) of wireless networks with the aid of so-called 'intelligent edges (IEs)'. IEs may be installed at the fringes of shadowing objects such as buildings, walls and other obstacles which obscure the optical signal path from a transmitter to receiver. We investigate two different approaches to illuminating the shadow region in wireless networks using IEs which exploit refraction or diffraction, operating in passive or active mode. The operation of IE-assisted communications are investigated, in particular the ways they can redirect electromagnetic energy towards regions with little or no wireless network coverage. Following from this, a number of variations of IEs are tested in real-world scenarios which consider illuminating the shadow region behind high-rise buildings, first in a city center, and then along a shoreline. Refractive IEs in particular, are shown to provide significant gains compared to the case when no IEs are involved, enhancing signal reception in the shadow region at street level behind a high rise building by as much as 12 dB. Critically, it is shown that intelligent edges offer a low complexity and cost-effective solution for improving connectivity in shadowing-limited environments.

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Section: Introductionmentioning

confidence: 99%