论文标题
Cybertwin启用了6G空间空气地面集成网络：建筑，开放问题和挑战
Cybertwin-enabled 6G Space-air-ground Integrated Networks: Architecture, Open Issue, and Challenges
论文作者
论文摘要
空间空气地面集成网络（Sagin）被视为新兴6G网络中的核心要求，该网络集成了地面和非事物网络，以达到完整的网络覆盖范围和无处不在的服务。为了设想本文介绍了无处不在的智能和6G萨金的深层整合，本文介绍了Cybertwin启用6G Sagin的范式。具体而言，首先提出了支持Cybertwin的Sagin架构，其中提出了一种新颖的五维数字双（DT）模型。尤其是，基于萨金的Cybertwin，即基于Cybertwin的多源异质网络集成，基于Cybertwin的集成云边缘和基于Cybertwin的集成感应传感 - 互补，提出了三类关键技术。此外，研究了支持Cybertwin的Sagin中的两个开放问题，即网络决策和优化以及Cybertwin启用的跨层隐私和安全性，讨论了挑战并指示潜在的解决方案。此外，开发了一项有关联邦学习的案例研究，并讨论了开放研究问题。
Space-air-ground integrated network (SAGIN) is considered as a core requirement in emerging 6G networks, which integrates the terrestrial and non-terrestrial networks to reach the full network coverage and ubiquitous services. To envision the ubiquitous intelligence and the deep integration in 6G SAGIN, a paradigm of cybertwin-enabled 6G SAGIN is presented in this paper. Specifically, a cybertwin-enabled SAGIN architecture is first presented, where a novel five-dimension digital twin (DT) model is presented. Particularly, three categories of critical technologies are presented based on the cybertwin of SAGIN, i.e., cybertwin-based multi-source heterogeneous network integration, cybertwin-based integrated cloud-edge-end, and cybertwin-based integrated sensing-communication-computing. Besides, two open issues in the cybertwin-enabled SAGIN are studied, i.e., the networking decision and optimization and the cybertwin-enabled cross-layer privacy and security, where the challenges are discussed and the potential solutions are directed. In addition, a case study with federal learning is developed and open research issues are discussed.
