Towards a Service-aware E2E Network Slice Orchestration and Resource Provisioning across Multiple Domains

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School of Electrical Engineering | Doctoral thesis (article-based) | Defence date: 2022-06-02
Degree programme
97 + app. 98
Aalto University publication series DOCTORAL THESES, 68/2022
The 5th generation mobile network will rely fundamentally on network slicing to provide the required support to enable different vertical industry use cases, such as Ultra Reliable Low Latency Communication (uRLLC), Enhanced/extreme Mobile BroadBand (e/xMBB) and Massive Machine Type Communication (mMTC). In order to deliver these variant 5G use cases to end users from the same physical infrastructure, slice providers have to ensure the customization and optimization of End-to-end (E2E) mobile network slices to truly reflect the type of services that will be running on them. This dissertation is a compilation of research outcomes from our investigations into the practical implementations of various infrastructures and theoretical architectural designs. We also propose a set of algorithms to support the orchestration of service-aware network slices to enable different 5G and beyond use cases. Network function virtualization and software-defined networking are fundamental enabling principles in network slice orchestration. The orchestration of network slices that cuts across the different technological domains of the mobile network (i.e., RAN, Transport, and Core network) as well as the administrative domains (i.e., different cloud providers, MNO clouds and other private/public clouds) is called E2E network slicing. Orchestrating E2E network slices to deliver different 5G services involves a number of requirements and constraints at different technological domains of the mobile network. Fulfilling these divergent but distinctive network requirements for each slice type while provisioning virtual resources from multiple administrative domains will require a holistic framework and intricate architecture capable of considering all of the possible slicing ramifications and the necessary system support. Traffic isolation, dynamic resource provisioning, and dynamic re/configuration are among the most notable challenges of network slicing. The aim of the studies presented in this dissertation is to make advances towards overcoming the specific challenges of network slicing. These challenges have been approached from the perspectives of a sound theoretical analysis, the implementation of a practical framework, the design and development of novel architecture, and the development of efficient schemes. We started by conducting a comprehensive survey to provide a holistic understanding of the concept of network slicing, its design principles, and enabling technologies. Then, we implemented a framework for the E2E slicing of the mobile network and 5G services. We then proposed a novel architecture for facilitating the orchestration of network slices from multiple administrative domains. Finally, we developed a scheme with an enabling architecture for the dynamic provisioning of virtual resources for slice orchestration systems.
Supervising professor
Manner, Jukka MJ, Prof., Aalto University, Department of Communications and Networking, Finland
Thesis advisor
Bagaa, Miloud, Dr., Aalto University, Finland
network slicing, network softwarization, slice orchestration, NFV, SDN, 5G, 6G
Other note
  • [Publication 1]: I. Afolabi, M. Bagaa, W. Boumezer and T. Taleb, “Toward a Real Deployment of Network Services Orchestration and Configuration Convergence Framework for 5G Network Slices,” IEEE Network Magazine, vol. 35, no. 1, pp. 242 - 250, Jan/Feb 2021.
    Full text in Acris/Aaltodoc:
    DOI: 10.1109/MNET.011.2000146 View at publisher
  • [Publication 2]: I. Afolabi, J.P. Garzon, M. Bagaa, T. Taleb, and P. Ameigeiras, “Dynamic Resource Provisioning of a Scalable E2E Network Slicing Orchestration System,” IEEE Transactions on Mobile Computing, vol. 19, no. 11, pp. 2594 - 2608, Nov 2020.
    Full text in Acris/Aaltodoc:
    DOI: 10.1109/TMC.2019.2930059 View at publisher
  • [Publication 3]: T. Taleb, I. Afolabi, K. Samdanis and F. Z. Yousaf, “On Multi-domain Network Slicing Orchestration Architecture and Federated Resource Control,” IEEE Network Magazine, vol. 33, no. 5, pp. 242 - 252, Sep 2019.
    Full text in Acris/Aaltodoc:
    DOI: 10.1109/MNET.2018.1800267 View at publisher
  • [Publication 4]: I. Afolabi, T. Taleb, P. A. Frangoudis, M. Bagaa and A. Ksentini, “Network Slicing-Based Customization of 5G Mobile Services,” IEEE Network Magazine, vol. 33, no. 5, pp. 134-141, Sep 2019. Sep 2019.
    Full text in Acris/Aaltodoc:
    DOI: 10.1109/MNET.001.1800072 View at publisher
  • [Publication 5]: T. Taleb, I. Afolabi, and M. Bagaa, “Orchestrating 5G Network Slices to Support Industrial Internet and to Shape Next-Generation Smart Factories,” IEEE Network Magazine, vol. 33, no. 4, pp. 146 – 154, July 2019.
    Full text in Acris/Aaltodoc:
    DOI: 10.1109/MNET.2018.1800129 View at publisher
  • [Publication 6]: I. Afolabi, T. Taleb, K. Samdanis, A. Ksentini, and H. Flinck, "Network Slicing and Softwarization: A Survey on Principles, Enabling Technologies and Solutions", IEEE Communications Surveys and Tutorials, vol. 20, no. 3, pp. 2429-2453, Mar. 2018.
    Full text in Acris/Aaltodoc:
    DOI: 10.1109/COMST.2018.2815638 View at publisher