Intelligent Reflective Surfaces – State of the Art

Kazim, Jalil ur Rehman; Abbas, Hasan; Imran, Muhammad Ali; Abbasi, Qammer H.

doi:10.1002/9781119695721.ch1

Cited by 3 publications

(3 citation statements)

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“…Reconfigurable intelligent surface (RIS) is a groundbreaking technique for reconfiguring the wireless propagation environment through software-controlled reflections to achieve enhanced spectral and energy efficiency in a cost-effective manner [ 205 , 206 , 207 , 208 , 209 , 210 ]. Some alternative terms are also used for RIS, such as intelligent reflecting surface (IRS) or software-controlled metasurfaces [ 211 , 212 ].…”

Section: Research Opportunities and Future Directionsmentioning

confidence: 99%

Millimeter-Wave Smart Antenna Solutions for URLLC in Industry 4.0 and Beyond

Jabbar

Abbasi

Anjum

et al. 2022

Sensors

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Industry 4.0 is a new paradigm of digitalization and automation that demands high data rates and real-time ultra-reliable agile communication. Industrial communication at sub-6 GHz industrial, scientific, and medical (ISM) bands has some serious impediments, such as interference, spectral congestion, and limited bandwidth. These limitations hinder the high throughput and reliability requirements of modern industrial applications and mission-critical scenarios. In this paper, we critically assess the potential of the 60 GHz millimeter-wave (mmWave) ISM band as an enabler for ultra-reliable low-latency communication (URLLC) in smart manufacturing, smart factories, and mission-critical operations in Industry 4.0 and beyond. A holistic overview of 60 GHz wireless standards and key performance indicators are discussed. Then the review of 60 GHz smart antenna systems facilitating agile communication for Industry 4.0 and beyond is presented. We envisage that the use of 60 GHz communication and smart antenna systems are crucial for modern industrial communication so that URLLC in Industry 4.0 and beyond could soar to its full potential.

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Section: Research Opportunities and Future Directionsmentioning

confidence: 99%

Millimeter-Wave Smart Antenna Solutions for URLLC in Industry 4.0 and Beyond

Jabbar

Abbasi

Anjum

et al. 2022

Sensors

Self Cite

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“…The RIS is characterized by a large amount of economical passive reflecting units and an intelligent controller. RIS's performance idea is linked to that of the aperture antenna 8,9 . RIS has been regarded as having the ability to change a dull network resource environment into an intelligently and smart extent which could actively contribute to increasing the quality of service (QoS) and accessibility in a wireless network.…”

Section: Introductionmentioning

confidence: 99%

“…RIS's performance idea is linked to that of the aperture antenna. 8,9 RIS has been regarded as having the ability to change a dull network resource environment into an intelligently and smart extent which could actively contribute to increasing the quality of service (QoS) and accessibility in a wireless network. RIS can be thought of as a hardware foundation for computation-hungry applications in wireless communication networks.…”

Section: Introductionmentioning

confidence: 99%

Joint user and throughput maximization in re‐configurable intelligent surface assisted beyond 5G/6G networks

Azam

Imran

Ali

et al. 2023

Trans Emerging Tel Tech

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Current fifth‐generation (5G) cellular networks must be upgraded to sixth‐generation (6G) networks as the data rate demands are increasing dramatically. In 6G, the re‐configurable intelligent surfaces (RISs) concept has recently received a lot of attention, it is a new technology that can be configured to optimize the wireless propagating environments and adjust wireless settings to improve the throughput of a network. RIS is emerging as a solution for Tera‐Hertz technologies. Therefore the joint user and the throughput maximization problem with RIS‐assisted B5G/6G wireless network is investigated in this paper subject to power transmission, quality of service (QoS), and phase shift constraints. The proposed research work focuses on RIS‐assisted wireless transmission, to collaboratively improve the admitted users and the throughput for all users in comparison to a traditional communications platform. The problem formulated is non‐convex resulting in the mixed integer non‐linear programming (MINLP) problem. MINLP problems are NP‐hard problems. A mesh adaptive direct search (MADS) algorithm is proposed to solve this problem efficiently. Extensive simulation work validates the proposed algorithm, in a RIS‐assisted network. Results achieved from the simulation show that by incorporating RIS in a network, efficient resource allocation increases throughput and maximizes the admitted users in a wireless network. The proposed MADS algorithm outperforms the existing advanced algorithms and its computational complexity is also low.

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