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Manuscript Submission Deadline 02 December 2022

In the context of future and emerging 5G/6G networks various advanced applications will require different sophisticated mobility management designs for better network accessibility. Legacy network architectures provide specific capabilities for seamless mobility of devices across different networks, but these cannot adequately cover the massive deployment of new wireless networks that will provide sophisticated services for various vertical domains that will have diverse requirements in terms of mobile broadband rates, ultra low end-end delays and massive device interconnectivity.

One of the key drivers for addressing such trends is related to Software Defined Networking (SDN), that has emerged with the main objective of adding more flexibility, scalability and independence to the network infrastructure, thereby making the network programmable. Control decisions are shifted from the access towards edge or core clouds leading to centralized network management architectures that require big data mechanisms to enable effective SDN controller resource management decisions as network scalability grows. Additionally, there are specific efforts to develop open and disaggregated Radio Access Network protocols for optimizing the use of hardware and software and for promoting flexibility, vendor neutrality and programmability of network deployments, further enabling the modular design of intelligent network management solutions.

Most recent works have used the SDN paradigm to enhance the mobility management in heterogeneous networks. Recent studies are based on Centralized Mobility Management (CMM) and Distributed Mobility Management (DMM). SDN architecture can be applied to improve the flexibility and performance of mobile networks. However, there is some drawbacks such as intra-domain and inter-domain handover which cannot be provided or optimized simultaneously, in addition to the signaling cost between different controllers in inter-domain handovers.

Other proposed SDN-based mobility management schemes are based on hierarchical architecture to support intra-domain and inter-domain handover scenarios. This solution was also designed to reduce the end to end delay. However, the scalability and single point of failure remain a major problem. Finally, an important open issue is the development of new open RAN interfaces that will exploit the wealth of available data in terms of network operation as well as other useful context information) for enabling seamless device mobility across networks.

The scope of this Research Topic is to define the problems involved in managing mobility in 5G/6G networks. This Research Topic will cover solutions that will provide better mobility management in terms of scalability, single point of failure problem, and computational complexity. Subjects of interest include, but are not limited to the following:

- 5G/6G Mobility management in the context of big data
- SDN- NFV based solutions
- Mobility architecture and protocols
- Network Scalability and mobility solutions
- Big data and Handover performance
- Implementation aspects and hardware issues for SDN
- Open and disaggregated RAN solutions

Keywords: SDN, Mobility Management, Vertical Handover, Big Data, Cloud RAN, Open RAN


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

In the context of future and emerging 5G/6G networks various advanced applications will require different sophisticated mobility management designs for better network accessibility. Legacy network architectures provide specific capabilities for seamless mobility of devices across different networks, but these cannot adequately cover the massive deployment of new wireless networks that will provide sophisticated services for various vertical domains that will have diverse requirements in terms of mobile broadband rates, ultra low end-end delays and massive device interconnectivity.

One of the key drivers for addressing such trends is related to Software Defined Networking (SDN), that has emerged with the main objective of adding more flexibility, scalability and independence to the network infrastructure, thereby making the network programmable. Control decisions are shifted from the access towards edge or core clouds leading to centralized network management architectures that require big data mechanisms to enable effective SDN controller resource management decisions as network scalability grows. Additionally, there are specific efforts to develop open and disaggregated Radio Access Network protocols for optimizing the use of hardware and software and for promoting flexibility, vendor neutrality and programmability of network deployments, further enabling the modular design of intelligent network management solutions.

Most recent works have used the SDN paradigm to enhance the mobility management in heterogeneous networks. Recent studies are based on Centralized Mobility Management (CMM) and Distributed Mobility Management (DMM). SDN architecture can be applied to improve the flexibility and performance of mobile networks. However, there is some drawbacks such as intra-domain and inter-domain handover which cannot be provided or optimized simultaneously, in addition to the signaling cost between different controllers in inter-domain handovers.

Other proposed SDN-based mobility management schemes are based on hierarchical architecture to support intra-domain and inter-domain handover scenarios. This solution was also designed to reduce the end to end delay. However, the scalability and single point of failure remain a major problem. Finally, an important open issue is the development of new open RAN interfaces that will exploit the wealth of available data in terms of network operation as well as other useful context information) for enabling seamless device mobility across networks.

The scope of this Research Topic is to define the problems involved in managing mobility in 5G/6G networks. This Research Topic will cover solutions that will provide better mobility management in terms of scalability, single point of failure problem, and computational complexity. Subjects of interest include, but are not limited to the following:

- 5G/6G Mobility management in the context of big data
- SDN- NFV based solutions
- Mobility architecture and protocols
- Network Scalability and mobility solutions
- Big data and Handover performance
- Implementation aspects and hardware issues for SDN
- Open and disaggregated RAN solutions

Keywords: SDN, Mobility Management, Vertical Handover, Big Data, Cloud RAN, Open RAN


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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