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Electrical Engineering and Systems Science > Signal Processing

arXiv:2204.07265 (eess)
[Submitted on 14 Apr 2022 (v1), last revised 20 Dec 2022 (this version, v4)]

Title:The Rise of Intelligent Reflecting Surfaces in Integrated Sensing and Communications Paradigms

Authors:Ahmet M. Elbir, Kumar Vijay Mishra, M. R. Bhavani Shankar, Symeon Chatzinotas
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Abstract:The intelligent reflecting surface (IRS) alters the behavior of wireless media and, consequently, has potential to improve the performance and reliability of wireless systems such as communications and radar remote sensing. Recently, integrated sensing and communications (ISAC) has been widely studied as a means to efficiently utilize spectrum and thereby save cost and power. This article investigates the role of IRS in the future ISAC paradigms. While there is a rich heritage of recent research into IRS-assisted communications, the IRS-assisted radars and ISAC remain relatively unexamined. We discuss the putative advantages of IRS deployment, such as coverage extension, interference suppression, and enhanced parameter estimation, for both communications and radar. We introduce possible IRS-assisted ISAC scenarios with common and dedicated surfaces. The article provides an overview of related signal processing techniques and the design challenges, such as wireless channel acquisition, waveform design, and security.
Comments: Accepted paper in IEEE Network Magazine
Subjects: Signal Processing (eess.SP); Information Theory (cs.IT)
Cite as: arXiv:2204.07265 [eess.SP]
  (or arXiv:2204.07265v4 [eess.SP] for this version)
  https://doi.org/10.48550/arXiv.2204.07265
Journal reference: IEEE Network, 2023
Related DOI: https://doi.org/10.1109/MNET.128.2200446

Submission history

From: Ahmet M. Elbir [view email]
[v1] Thu, 14 Apr 2022 23:25:18 UTC (11,576 KB)
[v2] Fri, 24 Jun 2022 07:43:37 UTC (11,578 KB)
[v3] Sun, 18 Dec 2022 04:03:38 UTC (17,836 KB)
[v4] Tue, 20 Dec 2022 05:34:45 UTC (17,836 KB)
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