# Digital Twin-Driven Virtual Network Architecture for Enhanced Extended Reality Capabilities
## 5 Conclusions and Future Work  
A novel framework architecture for Digital Twin networks has been proposed to be able to provide immersive extended Reality Functions with the ultimate objective of extending the existing functions available in the original network, including both services for the users and network management and control functions. Furthermore, the supporting architecture for the aforementioned deployment has been introduced along with the entity modules and their specific operations. In addition, the different traffic flows that facilitate the realization of the system's operation have been presented. Subsequently, it has been demonstrated that despite the demanding requirements for implementing the proposed system, the DTN + XRF is achievable. The performance metrics defined in this study evidence that the system is capable of operating as an efficient and reliable network. The concepts outlined in this paper will serve as the foundation for future research, which will ultimately facilitate the actual implementation of the proposed DTN + XRF.  
Finally, it is fundamental to highlight that the literature analysis has demonstrated that the paper's proposal represents a totally new proposal that can be envisioned as a future high-interest area with a wide range of innovative applications such as key fields including medical applications, surveillance systems, autonomous driving and space communications. This, it is important to highlight that this paper is the first one to approach the deployment of a DTN + XRF.  
Regarding the current findings, the following actions will take place in our future work in order to be able to provide an early test-bed environment:  
1. To define the technology to support the DTN's deployment. Virtualization techniques are envisioned as a suitable solution.
2. To analyze the appropriate transport communication protocol to communicate the ON and the DTN.
3. To analyze the hardware and software requirements for constructing the supporting entity modules.
4. To analyze the security approaches to ensure a secure DTN environment.
5. It is necessary to analyze the system's consistency validation processes based on simulations in order to provide a proposal for the real system's deployment.
6. To conduct a study to determine and estimate the dimensions for hardware and software resources.  
Conceptualization, X.C.-H. and X.H.; methodology, X.C.-H. and X.H.; validation, X.C.-H. and X.H.; formal analysis, X.C.-H. and X.H.; investigation, X.C.-H. and X.H.; resources, X.H.; writing--original draft preparation, X.C.-H. and X.H.; writing--review and editing, X.C.-H. and X.H.; supervision, X.H.; project administration, X.H.; funding acquisition, X.H. All authors have read and agreed to the published version of the manuscript.  
This work has been supported by the Agencia Estatal de Investigacion of Ministerio de Ciencia e Innovacion of Spain under project PID2022-137329 OB-C41/MCIN/AEI/10.13039/501100011033.  
Not applicable.  
The data presented in this study are available in the article.  
The authors declare no conflicts of interest.