Resource Allocation for Network Slicing in Mobile Networks

IEEE Access

Gustavo de Veciana¹  Albert Banchs²  Xavier Costa-Perez³  Vincenzo Sciancalepore³ 

[1] Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA;Department of Telematics Engineering, University Carlos III of Madrid, Leganes, Madrid;NEC Laboratories Europe, Heidelberg, Germany;

关键词: Mobile networks;    network slicing;    beyond 5G;    resource allocation;   

DOI  :  10.1109/ACCESS.2020.3040949

来源: DOAJ

【 摘 要 】

This paper provides a survey of resource allocation for network slicing. We focus on two classes of existing solutions: (i) reservation-based approaches, which allocate resources on a reservation basis, and (ii) share-based approaches, which allocate resources based on static overall shares associated to individual slices. We identify the requirements that a slice-based resource allocation mechanism should satisfy, and evaluate the performance of both approaches against these requirements. Our analysis reveals that reservation-based approaches provide a better level of isolation as well as stricter guarantees, by enabling tenants to explicitly reserve resources, but one must pay a price in terms of efficiency unless reservations can be updated very dynamically; in particular, efficiency falls below 50% when reservations are performed over long timescales. We provide further comparisons in terms of customizability, complexity, privacy and cost predictability, and discuss which approach might be more suitable depending on the network slices' characteristics. We also describe the additional mechanisms required to implement the desired resource allocations while meeting the latency and reliability requirements of the different slice types, and outline some issues for future work.

【 授权许可】

Unknown