IEEE Communications Magazine· 2019Q1
Towards Smart and Reconfigurable Environment: Intelligent Reflecting Surface Aided Wireless Network
- 4,326citations
- Q1SCImago
- 2019year
Short summary
Intelligent Reflecting Surfaces (IRS) can enhance wireless network performance by reconfiguring the propagation environment with massive low-cost passive elements that control signal amplitude and phase for 3D passive beamforming.
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Key points
- IRS technology uses massive low-cost passive reflecting elements to reconfigure wireless propagation environments.
- Elements independently control signal amplitude and/or phase for 3D passive beamforming.
- IRS offers advantages over traditional active-component-only wireless networks.
- Numerical results demonstrate significant performance enhancement with IRS.
AI-generated from the title and abstract; the full text is not read.
Abstract
IRS is a new and revolutionizing technology that is able to significantly improve the performance of wireless communication networks, by smartly reconfiguring the wireless propagation environment with the use of massive low-cost passive reflecting elements integrated on a planar surface. Specifically, different elements of an IRS can independently reflect the incident signal by controlling its amplitude and/or phase and thereby collaboratively achieve fine-grained 3D passive beamforming for directional signal enhancement or nulling. In this article, we first provide an overview of the IRS technology, including its main applications in wireless communication, competitive advantages over existing technologies, hardware architecture as well as the corresponding new signal model. We then address the key challenges in designing and implementing the new IRS-aided hybrid (with both active and passive components) wireless network, as compared to the traditional network comprising active components only. Finally, numerical results are provided to show the great performance enhancement with the use of IRS in typical wireless networks.
The authors' abstract, as published at the source. IEEE Communications Magazine, 2019 · DOI ↗
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Field: Electrical and Electronic Engineering
Electrical and Electronic EngineeringEngineering