Multi-Tenant Radio Access Network Slicing: Statistical Multiplexing of Spatial Loads

Caballero, Pablo; Banchs, Albert; Veciana, Gustavo de; Costa‐Pérez, Xavier

doi:10.1109/tnet.2017.2720668

Cited by 141 publications

(102 citation statements)

References 31 publications

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“…The issue of dividing RAN resources among a set of MVNOs has received significant interest from the research community over the last years; for excellent surveys on the topic, the reader is referred to [14,15]. This problem (also referred to as RAN slicing problem [5,16,19]) has been addressed by designing solutions that use a variety of theoretical tools, ranging from optimization [20][21][22][23], auctions [24] and game theory [25][26][27].…”

Section: Related Workmentioning

confidence: 99%

The Slice Is Served: Enforcing Radio Access Network Slicing in Virtualized 5G Systems

DrOro

Restuccia

Talamonti

et al. 2019

IEEE INFOCOM 2019 - IEEE Conference on Computer Communications

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The notions of softwarization and virtualization of the radio access network (RAN) of next-generation (5G) wireless systems are ushering in a vision where applications and services are physically decoupled from devices and network infrastructure. This crucial aspect will ultimately enable the dynamic deployment of heterogeneous services by different network operators over the same physical infrastructure. RAN slicing is a form of 5G virtualization that allows network infrastructure owners to dynamically "slice" and "serve" their network resources (i.e., spectrum, power, antennas, among others) to different mobile virtual network operators (MVNOs), according to their current needs. Once the slicing policy (i.e., the percentage of resources assigned to each MVNO) has been computed, a major challenge is how to allocate spectrum resources to MVNOs in such a way that (i) the slicing policy defined by the network owner is enforced; and (ii) the interference among different MVNOs is minimized. In this article, we mathematically formalize the RAN slicing enforcement problem (RSEP) and demonstrate its NP-hardness. For this reason, we design three approximation algorithms that render the solution scalable as the RSEP increases in size. We extensively evaluate their performance through simulations and experiments on a testbed made up of 8 software-defined radio peripherals. Experimental results reveal that not only do our algorithms enforce the slicing policies, but can also double the total network throughput when intra-MVNO power control policies are used in conjunction.

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Section: Related Workmentioning

confidence: 99%

The Slice Is Served: Enforcing Radio Access Network Slicing in Virtualized 5G Systems

DrOro

Restuccia

Talamonti

et al. 2019

IEEE INFOCOM 2019 - IEEE Conference on Computer Communications

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“…In the research work presented in [31], two cooperative game models are proposed to address the competitive spectrum sharing problem: if the tenants in a coalition agree to share its cost but keep their individual revenues, the problem is formalized as a nontransferable utility cooperative game; if the tenants would be willing to give away also part of their individual revenues to be in a coalition, a transferable utility game is proposed instead. Other network sharing and multi tenancy schemes are discusses in [32], [33]. Furthermore, the work in [34] presents a model based on renting and favor.…”

Section: Real-time Adaptation Of the Spectrum Tariffs -Spectrum Aumentioning

confidence: 99%

Radio Resource Sharing as a service in 5G: A software-defined networking approach

Jiang

Xenakis

Costanzo

et al. 2017

Computer Communications

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The rise of heterogeneity in technology, types of services, and coverage area of radio access in the Fifth Generation (5G) wireless communication, opens new challenges in optimising users' access to the networks. To fully utilise the capacity of such rich field of wireless connectivity, mobile devices can not any more be confined with accessing only their previously agreed home operator's infrastructure. On the other hand, and in order to keep up with the agility required to deliver promises in providing new services and applications, virtualization and softwarization are introduced in the 5G. To this end, we propose an on-the-fly Radio Resource Sharing (RRS) scheme between different mobile infrastructures so as to provide mobile devices with the freedom to access all available radio resources around them. Such on-thefly RRS is empowered by employing the concepts of Softwaredefined Networking (SDN) and virtualization of radio access resources. We argue that the RRS service is a step forwards in achieving the convergence as foreseen by the 5G: convergence of SDN, virtualization, and wireless control, convergence of heterogeneous wireless infrastructure, and above all, convergence of different operators' infrastructure in a transparent manner.

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“…[3] [4]. Moreover, implementation aspects of network slicing in the NG-RAN have been studied from multiple angles, ranging from virtualization techniques and programmable platforms with slice-aware traffic differentiation and protection mechanisms [5]- [7] to algorithms for dynamic resource sharing across slices [8].…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Validation of a Software-Defined Radio Access Network Testbed with Slicing Support

Koutlia

Ferrús

Coronado

et al. 2019

Wireless Communications and Mobile Computing

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Network slicing is a fundamental feature of 5G systems to partition a single network into a number of segregated logical networks, each optimized for a particular type of service, or dedicated to a particular customer or application. The realization of network slicing is particularly challenging in the Radio Access Network (RAN) part, where multiple slices can be multiplexed over the same radio channel and Radio Resource Management (RRM) functions shall be used to split the cell radio resources and achieve the expected behaviour per slice. In this context, this paper describes the key design and implementation aspects of a Software-Defined RAN (SD-RAN) experimental testbed with slicing support. The testbed has been designed consistently with the slicing capabilities and related management framework established by 3GPP in Release 15. The testbed is used to demonstrate the provisioning of RAN slices (e.g. preparation, commissioning and activation phases) and the operation of the implemented RRM functionality for slice-aware admission control and scheduling.

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Multi-Tenant Radio Access Network Slicing: Statistical Multiplexing of Spatial Loads

Cited by 141 publications

References 31 publications

The Slice Is Served: Enforcing Radio Access Network Slicing in Virtualized 5G Systems

The Slice Is Served: Enforcing Radio Access Network Slicing in Virtualized 5G Systems

Radio Resource Sharing as a service in 5G: A software-defined networking approach

Design and Experimental Validation of a Software-Defined Radio Access Network Testbed with Slicing Support

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