Proceedings Article10.1109/CHINACOM.2015.7497982
A joint utility optimization based virtual AP and network slice selection scheme for SDWNs
Xun Hu,Rong Chai,Guixiang Jiang,Haipeng Li +3 more
- 01 Aug 2015
- pp 448-453
16
TL;DR: Considering the system scenario that a software-defined wireless network (SDWN) consists of overlapping RANs, an optimal joint VAP and network slice selection scheme is proposed and the concepts of utility function and network calculus are introduced and the joint utility of VAPs and network slices is formulated.
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Abstract: The proliferation of mobile demands and increasingly multifarious services pose challenges to both the radio access networks (RANs) and the core network (CN). Unfortunately, the traditional networks can hardly meet the increasing requirements. Software-defined network (SDN) and network virtualization (NV) are considered as innovative paradigms to stress these problems. By extending SDN to wireless networks, software-defined wireless network (SDWN) consisting of both RANs and CN can be obtained. In this paper, the RANs and CN of SDWN are virtualized to virtual access points (VAPs) and network slices respectively based on NV technology. Considering the system scenario that a SDWN consists of overlapping RANs, an optimal joint VAP and network slice selection scheme is proposed. To characterize the complicated transmission performance of VAPs and network slices, the concepts of utility function and network calculus are introduced, and the joint utility of VAPs and network slices is formulated based on which the optimal VAP and network slice combination corresponding to the maximal joint utility can be selected. The simulation results demonstrate the efficiency of the proposed scheme.
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Citations
Patent
System and methods for network slice reselection
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TL;DR: In this article, the slice used to support a user equipment (UE) can be switched to a new slice operated by the same service provider (intra-operator handover) or a different service providers (interoperator handoff).
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