Self Optimizing Network Slicing in 5G for Slice Isolation and High Availability

Vittal, Shwetha and Franklin, Antony (2021) Self Optimizing Network Slicing in 5G for Slice Isolation and High Availability. In: 17th International Conference on Network and Service Management, CNSM 2021, 25 October 2021 through 29 October 2021, Virtual, Online.

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5G network supports end-to-end logically isolated networks in the form of network slices, catering to the needs of users of various primary network services, namely enhanced Mobile Broadband (eMBB), ultra Reliable Low Latency Communications (uRLLC), and massive Machine Type Communication (mMTC). Mobile Virtual Network Operators (MVNO)s often face challenges in achieving strong slice isolation and High Availability per slice during overload and scaling situations as the 5G network uses a shared environment for slices with multiple domains, especially considering a variety of services and devices. In this paper, we propose a novel Self Optimizing Network Slicing framework (SONS) leveraging Self Organizing Network by building it as an autonomous slice system in 5G network slicing management for efficient slice sharing and isolation. Precisely, we formulate a system model with Probabilistic Graphical Model (PGM) based Markov Network, building it as an Artificial Intelligence based learning framework. We propose Slice Belief Propagation based algorithms and Deep Learning based Long Short Term Memory (LSTM) methods to aid in serving user requests and reconfiguration of self optimizing slice. Our experiments on the proposed SONS framework shows improvement in serving higher number of users with uninterrupted connectivity by 80% in eMBB, 35% in uRLLC, and 52% in mMTC when compared to standard slice deployments, while handling the worst case of peak traffic in the control plane of 5G Core network. © 2021 IFIP.

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IITH Creators:
IITH CreatorsORCiD
Franklin, Antony
Item Type: Conference or Workshop Item (Paper)
Additional Information: This work has been supported by the Department of Telecommunications, Ministry of Communications, India as part of the “Indigenous 5G Test Bed” project.
Uncontrolled Keywords: End to end; High availability; Isolated networks; Low-latency communication; Machinetype communication (MTC); Mobile broadband; Network slicing; Network support; Primary networks; Self-optimizing networks
Subjects: Computer science
Divisions: Department of Computer Science & Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 24 Sep 2022 10:36
Last Modified: 24 Sep 2022 10:36
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