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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

386
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
386

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Physical-Layer Security with Irregular Reconfigurable Intelligent Surfaces for 6G Networks.

Emmanuel Obeng Frimpong1, Bong-Hwan Oh2, Taehoon Kim3

  • 1Department of Intelligence Media Engineering, Hanbat National University, Daejeon 34158, Republic of Korea.

Sensors (Basel, Switzerland)
|February 28, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces irregular reconfigurable intelligent surfaces (IRISS) to enhance 6G communication security. IRIS technology improves secure data transmission by optimizing element activation, outperforming conventional RIS systems.

Keywords:
6Goptimizationphysical-layer securityreconfigurable intelligent surfacessecrecy rate

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Area of Science:

  • Wireless Communication
  • Information Security
  • Metamaterials

Background:

  • The 6G communication paradigm necessitates advancements in high throughput, low latency, robust security, and ubiquitous connectivity.
  • Reconfigurable Intelligent Surfaces (RISs) are emerging technologies that can manipulate electromagnetic wave propagation to meet these demands.
  • Conventional RIS systems face limitations, particularly concerning the number of active elements required for optimal performance.

Purpose of the Study:

  • To enhance communication secrecy in 6G networks using an Irregular Reconfigurable Intelligent Surface (IRIS).
  • To investigate the effectiveness of IRIS in establishing secure links between a base station and a legitimate user against eavesdroppers.
  • To maximize the secrecy rate through joint optimization of RIS topology and precoding design.

Main Methods:

  • Formulation of a topology-and-precoding optimization problem to maximize the secrecy rate.
  • Development of a Tabu search-based algorithm for joint optimization of IRIS topology and precoding.
  • Simulation of a communication scenario involving a multi-antenna base station, a single-antenna user, and a single-antenna eavesdropper, aided by an IRIS.

Main Results:

  • The proposed Tabu search algorithm effectively optimizes IRIS topology and precoding for secure transmissions.
  • Simulation results demonstrate significant performance gains of IRIS in improving secrecy rates compared to conventional RIS.
  • IRIS enables additional spatial diversity, overcoming limitations of conventional RIS systems with a large number of active elements.

Conclusions:

  • Exploiting IRIS technology is a promising approach to achieve enhanced secrecy in future 6G communication systems.
  • The proposed IRIS-assisted method offers a practical solution for improving secure wireless communications.
  • IRIS provides a more efficient and effective means of enhancing spatial diversity for improved secrecy performance.