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Journal of Network and Systems Management
Erschienen in: Journal of Network and Systems Management 4/2022

01.10.2022

Flexible RAN Slicing for Mobile Wireless Networks

verfasst von: Afonso Oliveira, Teresa Vazão

Erschienen in: Journal of Network and Systems Management | Ausgabe 4/2022

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Abstract

Enforcing network slice isolation in 5G Radio Access Networks (RANs) can degrade a network slicing solution’s ability to efficiently support different types of traffic. In addition, competing virtual network operators may share one network infrastructure that forces network slicing solutions to provide fair treatment between them. This work presents Flexible Priority Scheduling (FPS). This RAN network slicing solution provides isolated treatment to slices with different traffic types, further exploring their needs and flexibility to achieve a more efficient solution. It does so by defining a contract interface that allows a flexible representation of different types of traffic, from heavy throughput services to low latency and bursty traffic. Furthermore, the presented contract representation allows a fair treatment of the tenant’s traffic in the Medium Access Control (MAC) scheduler that enforces this slicing solution: Priority Adaptation Slice Scheduler (PASS).
Vorheriger Artikel DSEA: A Traffic Control Method of Information Center Networking Based on Multi-objective Genetic Algorithms
Nächster Artikel DB-CMT: A New Concurrent Multi-path Stream Control Transport Protocol

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Fußnoten
2
One TTI can have one or more slots. For simplicity, in this work we consider that one TTI has the duration of one slot.
 
3
Note that the resources specified as the capacity BC may be more than the ones available in one TTI. In this scenario, the in-profile traffic may take more than one TTI to schedule.
 
4
This scheme with the third greedy round is to reduce the algorithm complexity in terms of the number of slices. To repeat the second round (lines 17–24) until there are no resources would increase the algorithm complexity to the square of the number of slices.
 
5
The contracted value is in RBs, but since this is a fixed MCS scenario, there is a direct conversion between bitrate and RB rate.
 
6
The plot definition is capped to the TG value. As such, plotlines where \(TG=100\) have lower definition than plotlines where \(TG=50\).
 
7
Remember that URLLC MPR is the same as mMTC mAR
 
8
The value of \(pool\_multiplier=1.2\) is used.
 
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Metadaten
Titel
Flexible RAN Slicing for Mobile Wireless Networks
verfasst von
Afonso Oliveira
Teresa Vazão
Publikationsdatum
01.10.2022
Verlag
Springer US
Erschienen in
Journal of Network and Systems Management / Ausgabe 4/2022
Print ISSN: 1064-7570
Elektronische ISSN: 1573-7705
DOI
https://doi.org/10.1007/s10922-022-09670-8

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