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Quality of Service Modelling of Virtualized Wireless Networks: A Network Calculus Approach

Zhang, Lianming and Liu, Jia and Yang, Kun (2014) Quality of Service Modelling of Virtualized Wireless Networks: A Network Calculus Approach. In: UNSPECIFIED, ? - ?.

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Wireless network virtualization is an emerging technology that logically divides a wireless network element, such as a base station (BS), into multiple slices with each slice serving as a standalone virtual BS. In such a way, one physical mobile wireless network can be partitioned into multiple virtual networks each operating as an independent wireless network. Wireless virtual networks, as composed of these virtual BSs, need to provide quality of service (QoS) to mobile end user services. Key QoS parameters include buffer queue length, network delay and effective bandwidth, in particular their upper bound forms. This paper presents a QoS model for such a wireless virtual network addressing these parameters. This QoS model considers resources of both physical nodes and virtual nodes and provides a realistic modelling of the delay and bandwidth behaviours of wireless virtual networks. Network calculus (NC), which usually provides finer insight into a system, is utilized to fulfil the modelling task. The numerical results have shown the effectiveness of the proposed model. The model is useful for both off-line network planning and online network admission control. © 2014 Springer Science+Business Media New York.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: Published proceedings: Mobile Networks and Applications
Uncontrolled Keywords: Wireless network virtualization; QoS modelling; Upper bound delay; Upper bound bandwidth; Network calculus
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 05 Dec 2014 14:45
Last Modified: 23 Sep 2022 18:31

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