A Novel Optimization Framework for C-RAN BBU Selection based on Resiliency and Price

被引：0

作者：

Lyazidi, Mohammed Yazid ^{[1
,2
]}

Giupponi, Lorenza ^{[2
]}

Mangues-Bafalluy, Josep ^{[2
]}

Aitsaadi, Nadjib ^{[3
]}

Langar, Rami ^{[4
]}

机构：

[1] Univ Paris 06, UPMC, CNRS, Sorbonne Univ,LIP6,UMR 7606, F-75005 Paris, France

[2] CTTC, Barcelona 08860, Spain

[3] Univ Paris Est, CNRS, LIGM, ESIEE Paris,UMR 8049, F-93162 Noisy Le Grand, France

[4] Univ Paris Est, CNRS, LIGM, UPEM,UMR 8049, F-77454 Marne La Vallee, France

来源：

2017 IEEE 86TH VEHICULAR TECHNOLOGY CONFERENCE (VTC-FALL) | 2017年

关键词：

C-RAN; Optimization; BBU; Resiliency; Virtualization cost; Branch-and-Price; RESOURCE-ALLOCATION; CLOUD-RAN;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

As Mobile Network Operators (MNOs) are shifting towards Cloud-Radio Access Network (C-RAN), they have to upgrade their infrastructure to not only support higher processing capacities but also to be more resilient. We consider the problem where a MNO is faced with the choice of selecting virtualized Baseband Units (BBUs) from various cloud service providers, that are each characterized with distinct failure probabilities and prices. We propose to solve the BBU selection problem, formulated as an Integer Linear Program (ILP) subject to BBU capacity and virtualization cost using the Branch-and-Price algorithm. We present several schemes depicting which optimization goal the MNO can foster the most: BBU processing power minimization, resiliency, traffic handling or all. Simulation results demonstrate the good performance of our algorithm to solve the BBU selection problem for all schemes, while also emphasizing the advantages of a particular one that can realize more than 1 0 % in virtualization cost savings.

引用

页数：6

共 12 条

[1] Resource Allocation for an OFDMA Cloud-RAN of Small Cells Underlaying a Macrocell [J].