无线系统的数字孪生：概述、分类、挑战和机遇
Digital Twin of Wireless Systems: Overview, Taxonomy, Challenges, and Opportunities
摘要：
未来的无线服务必须专注于通过启用各种应用（如延展实境、脑机交互和医疗保健）来提高生活质量。这些应用具有不同的性能要求（例如，用户定义的体验质量度量、等待时间和可靠性），这些都是现有无线系统难以满足的。为了满足新兴应用的多样化需求，最近提出了数字孪生的概念。数字孪生使用虚拟表示以及安全相关技术（例如，区块链），通信技术（例如，6G）、计算技术（例如，边缘计算）和机器学习，从而实现智能应用。在本教程中，我们将全面概述无线系统的数字孪生。首先，我们介绍了基本概念的概述（即，设计方面、高级架构和框架）。第二，为这两个不同的方面设计了一个全面的分类法。这些方面是双胞胎的无线和无线的双胞胎。对于无线方面的双胞胎，我们考虑参数，如双胞胎对象设计，原型设计，部署趋势，物理设备设计，接口设计，激励机制，双胞胎隔离和解耦。另一方面，对于双胞胎的无线，考虑了诸如双对象接入方面、安全性和隐私性以及空中接口设计等参数。最后，开放式研究的挑战和机遇，以及原因和可能的解决方案。
英文摘要：
Future wireless services must be focused on improving the quality of life by enabling various applications, such as extended reality, brain-computer interaction, and healthcare. These applications have diverse performance requirements (e.g., user-defined quality of experience metrics, latency, and reliability) that are challenging to be fulfilled by existing wireless systems. To meet the diverse requirements of the emerging applications, the concept of a digital twin has been recently proposed. A digital twin uses a virtual representation along with security-related technologies (e.g., blockchain), communication technologies (e.g., 6G), computing technologies (e.g., edge computing), and machine learning, so as to enable the smart applications. In this tutorial, we present a comprehensive overview on digital twins for wireless systems. First, we present an overview of fundamental concepts (i.e., design aspects, high-level architecture, and frameworks) of digital twin of wireless systems. Second, a comprehensive taxonomy is devised for both different aspects. These aspects are twins for wireless and wireless for twins. For the twins for wireless aspect, we consider parameters, such as twin objects design, prototyping, deployment trends, physical devices design, interface design, incentive mechanism, twins isolation, and decoupling. On the other hand, for wireless for twins, parameters such as, twin objects access aspects, security and privacy, and air interface design are considered. Finally, open research challenges and opportunities are presented along with causes and possible solutions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
