Network Slicing for Service-Oriented Networks Under Resource Constraints
Nan Zhang, Ya-Feng Liu, Hamid Farmanbar, Tsung-Hui Chang, Mingyi Hong,, and Zhi-Quan Luo

TL;DR
This paper addresses the challenge of network slicing for service-oriented networks by formulating it as an NP-hard optimization problem and proposing algorithms to efficiently allocate resources under constraints.
Contribution
It introduces a formal mixed binary linear programming model for network slicing and develops novel algorithms to solve it effectively.
Findings
Proposed algorithms outperform baseline methods in simulations.
Effective resource localization with capacity constraints is achievable.
Algorithms demonstrate good scalability and solution quality.
Abstract
To support multiple on-demand services over fixed communication networks, network operators must allow flexible customization and fast provision of their network resources. One effective approach to this end is network virtualization, whereby each service is mapped to a virtual subnetwork providing dedicated on-demand support to network users. In practice, each service consists of a prespecified sequence of functions, called a service function chain (SFC), while each service function in a SFC can only be provided by some given network nodes. Thus, to support a given service, we must select network function nodes according to the SFC and determine the routing strategy through the function nodes in a specified order. A crucial network slicing problem that needs to be addressed is how to optimally localize the service functions in a physical network as specified by the SFCs, subject to…
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Taxonomy
TopicsSoftware-Defined Networks and 5G · Network Security and Intrusion Detection · Cooperative Communication and Network Coding
