Radio access network resource slicing for flexible service execution

Chang, Chia‐Yu; Nikaein, Navid; Spyropoulos, Thrasyvoulos

doi:10.1109/infcomw.2018.8407021

Cited by 51 publications

(34 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A few recent papers have focused on addressing the RAN slicing enforcement problem from a resource allocation perspective. Chang et al [17] propose a partitioning algorithm that allocates the available RBs to each requesting MVNO by simultaneously maximizing the percentage of satisfied MVNOs while allocating the minimum amount of RBs. Similarly, Han et al [31] consider genetic algorithms to assign the available RBs to the MVNOs such that a long-term utility is maximized.…”

Section: Related Workmentioning

confidence: 99%

“…Similarly, Han et al [31] consider genetic algorithms to assign the available RBs to the MVNOs such that a long-term utility is maximized. However, [17,31] analyze the problem considering a network with a single BS, and thus cannot be applied in multi-cell networks where MVNOs request different amounts of resources on different BSs. The authors in [18,32] identify fine-grained RB management as a promising approach to guarantee orthogonality and reduce inter-MVNO interference, thus deploying highly-efficient 5G networks.…”

Section: Related Workmentioning

confidence: 99%

“…2) Orthogonality: at the same time, orthogonality among each RAN slice must be ensured. That is, each RB should be allocated to only one MVNO to avoid interference and other performance-degrading factors [5,17,18]; 3) Enabling of advanced 5G technologies: the RB allocation should facilitate advanced signal processing and RF transmission technologies such as IBSPC, JC, CoMP and MIMO, that considerably improve network performance and have been envisioned to lead the way of 5G networks. The objective of this work is to design, analyze and experimentally evaluate RAN slicing enforcement algorithms that address the three critical challenges mentioned above.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

View full text Add to dashboard Cite

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.

show abstract

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

show abstract

“…In terms of the RAN, some researchers have studied the problem of network slicing resource allocation. One of the main challenges of RAN slicing is to provide different levels of resource isolation through resource abstraction, virtualization, and separation of services [9]. Many papers have already studied the main challenges.…”

Section: Introductionmentioning

confidence: 99%

Slicing Resource Allocation for eMBB and URLLC in 5G RAN

Zhang

Wang

et al. 2020

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

is paper investigates the network slicing in the virtualized wireless network. We consider a downlink orthogonal frequency division multiple access system in which physical resources of base stations are virtualized and divided into enhanced mobile broadband (eMBB) and ultrareliable low latency communication (URLLC) slices. We take the network slicing technology to solve the problems of network spectral efficiency and URLLC reliability. A mixed-integer programming problem is formulated by maximizing the spectral efficiency of the system in the constraint of users' requirements for two slices, i.e., the requirement of the eMBB slice and the requirement of the URLLC slice with a high probability for each user. By transforming and relaxing integer variables, the original problem is approximated to a convex optimization problem. en, we combine the objective function and the constraint conditions through dual variables to form an augmented Lagrangian function, and the optimal solution of this function is the upper bound of the original problem. In addition, we propose a resource allocation algorithm that allocates the network slicing by applying the Powell-Hestenes-Rockafellar method and the branch and bound method, obtaining the optimal solution. e simulation results show that the proposed resource allocation algorithm can significantly improve the spectral efficiency of the system and URLLC reliability, compared with the adaptive particle swarm optimization (APSO), the equal power allocation (EPA), and the equal subcarrier allocation (ESA) algorithm. Furthermore, we analyze the spectral efficiency of the proposed algorithm with the users' requirements change of two slices and get better spectral efficiency performance. methods to meet the different requirements of services with multiple logical networks. It has been a key enabler for 5G to accommodate a variety of services in a flexible manner [3]. erefore, it is critical to study multiservice problems in the virtual radio access network (RAN) by network slicing, especially different service requirements in various scenarios, such as enhanced mobile broadband (eMBB), ultrareliable low latency communication (URLLC), and massive machine-type communication (mMTC) [4,5]. e network slicing architecture consists of a core network (CN) and RAN slicing. Since the research of network slicing in the CN has been relatively mature and our research focuses on RAN slicing, the work of CN slicing is briefly introduced. For instance, in [6], the authors investigated how to combine fog node and network slicing of CN to safely access remote service data while ensuring low

show abstract

“…However the design and implementation of SD-RAN platforms has provided many researchers with a tool to evaluate the performance of their approaches in a real testbed. For instance, in [10] the notion of multiplexing gain is introduced for RAN slicing. The problem is formulated as a knapsack problem, where the focus is on the QoS performance while maximizing the unused part of the spectrum.…”

Section: Introductionmentioning

confidence: 99%

SDRBench: A Software-Defined Radio Access Network Controller Benchmark

Papa

Durner

Edinger

et al. 2019

2019 IEEE Conference on Network Softwarization (NetSoft)

View full text Add to dashboard Cite

Software-Defined Networking (SDN) has been identified as a key enabler for 5G networks to enhance the network capabilities by introducing flexibility and programmability. While SDN has been widely exploited in the core network side, it still remains an open research question in the Radio Access Network (RAN). Initial works highlight the benefits of SDN in RAN and investigate the idea of separating the control plane from the data plane of the Base Stations (BS) by means of SDN. The pioneer Software-Defined RAN (SD-RAN) controllers are available, nonetheless there exist no tools which can shed light on their performance and help to understand their limitations. We introduce SDRBench, a novel SD-RAN controller benchmark tool to fill this void. In this work, we evaluate FlexRAN, which is the first open source SD-RAN platform. In our tool, a Python-based instance of a FlexRAN agent is created and it communicates messages with the controller according to the FlexRAN protocol. The benchmark is used to uncover the limits of the SD-RAN controller.

show abstract

Radio access network resource slicing for flexible service execution

Cited by 51 publications

References 10 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

Slicing Resource Allocation for eMBB and URLLC in 5G RAN

SDRBench: A Software-Defined Radio Access Network Controller Benchmark

Contact Info

Product

Resources

About