Article: An inter-slice mobility with data offloading scheme using hierarchical-tunneling-based proxy mobile IPv6 for 5G networks Journal: International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC) 2025 Vol.48 No.3 pp.164 - 183 Abstract: Session continuity across different slices is critical for inter-slice mobility in 5G networks. To minimise service disruption latency, the MIPV6-RR/BU and GTPv1-U protocol was proposed for session continuity. However, this approach results in higher resource utilisation overhead compared to the 3GPP standard scheme. In this paper, we introduce a new inter-slice mobility scheme for 5G networks using the hierarchical-tunneling-based proxy mobile IPv6 (HTISDO) protocol. This scheme combines the existing proxy mobile IPv6 protocol with an inter-slice mobility protocol and addresses data offloading to facilitate network-initiated inter-slice mobility for load balancing. The main contribution of our HTISDO scheme is to alleviate the problem of frequent access to the 5G core network for requesting new network slices and re-establishing sessions, thereby enhancing service continuity. Experimental results show that our HTISDO scheme reduces the average transmission delay by approximately 10.6% and improves the average throughput by about 12.5% compared to existing inter-slice mobility schemes. Inderscience Publishers - linking academia, business and industry through research

Title: An inter-slice mobility with data offloading scheme using hierarchical-tunneling-based proxy mobile IPv6 for 5G networks

Authors: Yuh-Shyan Chen; Chih-Shun Hsu; Wei-Ming Wu

Addresses: Department of Computer Science and Information Engineering, National Taipei University, New Taipei City 237, Taiwan ' Department of Information Management, Shih Hsin University, Taipei, 116, Taiwan ' Department of Computer Science and Information Engineering, National Taipei University, New Taipei City 237, Taiwan

Abstract: Session continuity across different slices is critical for inter-slice mobility in 5G networks. To minimise service disruption latency, the MIPV6-RR/BU and GTPv1-U protocol was proposed for session continuity. However, this approach results in higher resource utilisation overhead compared to the 3GPP standard scheme. In this paper, we introduce a new inter-slice mobility scheme for 5G networks using the hierarchical-tunneling-based proxy mobile IPv6 (HTISDO) protocol. This scheme combines the existing proxy mobile IPv6 protocol with an inter-slice mobility protocol and addresses data offloading to facilitate network-initiated inter-slice mobility for load balancing. The main contribution of our HTISDO scheme is to alleviate the problem of frequent access to the 5G core network for requesting new network slices and re-establishing sessions, thereby enhancing service continuity. Experimental results show that our HTISDO scheme reduces the average transmission delay by approximately 10.6% and improves the average throughput by about 12.5% compared to existing inter-slice mobility schemes.

Keywords: network slicing; inter-slice mobility; hierarchical-tunneling; 5G core network; data offloading; PMIPv6; transmission delay.

DOI: 10.1504/IJAHUC.2025.144398

International Journal of Ad Hoc and Ubiquitous Computing, 2025 Vol.48 No.3, pp.164 - 183

Received: 29 Jun 2024
Accepted: 09 Aug 2024
Published online: 11 Feb 2025 *

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Title: An inter-slice mobility with data offloading scheme using hierarchical-tunneling-based proxy mobile IPv6 for 5G networks

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